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Merge pull request #174 from embassy-rs/nrf-neo

Browse Source 
nRF-neo
This commit is contained in:
Dario Nieuwenhuis
2021-05-17 01:04:13 +02:00
committed by GitHub
parent cd4111736c a5ad79927e
commit 35d05a4214
73 changed files with 2832 additions and 5903 deletions
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33
.github/workflows/rust.yml vendored
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@@ -30,40 +30,31 @@ jobs:
target: thumbv7em-none-eabi
- package: embassy-nrf
target: thumbv7em-none-eabi
features: 52810
features: nrf52805
- package: embassy-nrf
target: thumbv7em-none-eabi
features: 52832
features: nrf52810
- package: embassy-nrf
target: thumbv7em-none-eabi
features: 52833
features: nrf52811
- package: embassy-nrf
target: thumbv7em-none-eabi
features: 52840
features: nrf52820
- package: embassy-nrf
target: thumbv7em-none-eabi
features: 52840,log
features: nrf52832
- package: embassy-nrf
target: thumbv7em-none-eabi
features: 52840,defmt
- package: embassy-stm32-examples
features: nrf52833
- package: embassy-nrf
target: thumbv7em-none-eabi
features: stm32f405
- package: embassy-stm32
features: nrf52840
- package: embassy-nrf
target: thumbv7em-none-eabi
features: stm32f405
- package: embassy-stm32
features: nrf52840,log
- package: embassy-nrf
target: thumbv7em-none-eabi
features: stm32f446
- package: embassy-stm32
target: thumbv7em-none-eabi
features: stm32f405,defmt
- package: embassy-stm32
target: thumbv6m-none-eabi
features: stm32l0x2
- package: embassy-stm32
target: thumbv6m-none-eabi
features: stm32l0x2,defmt
features: nrf52840,defmt
- package: embassy-rp-examples
target: thumbv6m-none-eabi

13
embassy-extras/src/macros.rs
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@@ -46,18 +46,17 @@ macro_rules! peripherals {
impl Peripherals {
///Returns all the peripherals *once*
#[inline]
pub fn take() -> Option<Self> {
pub(crate) fn take() -> Self {
#[no_mangle]
static mut _EMBASSY_DEVICE_PERIPHERALS: bool = false;
critical_section::with(|_| {
if unsafe { _EMBASSY_DEVICE_PERIPHERALS } {
None
} else {
unsafe { _EMBASSY_DEVICE_PERIPHERALS = true };
Some(unsafe { <Self as embassy::util::Steal>::steal() })
critical_section::with(|_| unsafe {
if _EMBASSY_DEVICE_PERIPHERALS {
panic!("init called more than once!")
}
_EMBASSY_DEVICE_PERIPHERALS = true;
<Self as embassy::util::Steal>::steal()
})
}
}

1
embassy-macros/Cargo.toml
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@@ -14,7 +14,6 @@ proc-macro2 = "1.0.24"
proc-macro = true
[features]
stm32 = []
nrf = []
rp = []
std = []

2
embassy-macros/src/chip/nrf.rs
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@@ -9,7 +9,7 @@ pub fn generate(embassy_prefix: &ModulePrefix, config: syn::Expr) -> TokenStream
quote!(
use #embassy_nrf_path::{interrupt, peripherals, rtc};
unsafe { #embassy_nrf_path::system::configure(#config) };
let p = #embassy_nrf_path::init(#config);
let mut rtc = rtc::RTC::new(unsafe { <peripherals::RTC1 as #embassy_path::util::Steal>::steal() }, interrupt::take!(RTC1));
let rtc = unsafe { make_static(&mut rtc) };

2
embassy-macros/src/chip/rp.rs
View File

@@ -7,6 +7,6 @@ pub fn generate(embassy_prefix: &ModulePrefix, config: syn::Expr) -> TokenStream
quote!(
use #embassy_rp_path::{interrupt, peripherals};
unsafe { #embassy_rp_path::system::configure(#config) };
let p = #embassy_rp_path::init(#config);
)
}

28
embassy-macros/src/chip/stm32.rs
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@@ -1,28 +0,0 @@
use crate::path::ModulePrefix;
use proc_macro2::TokenStream;
use quote::quote;
pub fn generate(embassy_prefix: &ModulePrefix, config: syn::Expr) -> TokenStream {
let embassy_path = embassy_prefix.append("embassy").path();
let embassy_stm32_path = embassy_prefix.append("embassy_stm32").path();
quote!(
use #embassy_stm32_path::{rtc, interrupt, Peripherals, pac, hal::rcc::RccExt, hal::time::U32Ext};
unsafe { #embassy_stm32_path::system::configure(#config) };
let (dp, clocks) = Peripherals::take().unwrap();
let mut rtc = rtc::RTC::new(dp.TIM2, interrupt::take!(TIM2), clocks);
let rtc = unsafe { make_static(&mut rtc) };
rtc.start();
let mut alarm = rtc.alarm1();
unsafe { #embassy_path::time::set_clock(rtc) };
let alarm = unsafe { make_static(&mut alarm) };
executor.set_alarm(alarm);
unsafe { Peripherals::set_peripherals(clocks) };
)
}

87
embassy-macros/src/lib.rs
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@@ -3,9 +3,13 @@
extern crate proc_macro;
use darling::FromMeta;
use proc_macro::{Span, TokenStream};
use proc_macro::TokenStream;
use proc_macro2::Span;
use quote::{format_ident, quote};
use std::iter;
use syn::spanned::Spanned;
use syn::{parse, Type, Visibility};
use syn::{ItemFn, ReturnType};
mod path;
@@ -58,10 +62,9 @@ pub fn task(args: TokenStream, item: TokenStream) -> TokenStream {
fail = true;
}
if pool_size < 1 {
Span::call_site()
.error("pool_size must be 1 or greater")
.emit();
fail = true
return parse::Error::new(Span::call_site(), "pool_size must be 1 or greater")
.to_compile_error()
.into();
}
let mut arg_names: syn::punctuated::Punctuated<syn::Ident, syn::Token![,]> =
@@ -120,6 +123,66 @@ pub fn task(args: TokenStream, item: TokenStream) -> TokenStream {
result.into()
}
#[proc_macro_attribute]
pub fn interrupt(args: TokenStream, input: TokenStream) -> TokenStream {
let mut f: ItemFn = syn::parse(input).expect("`#[interrupt]` must be applied to a function");
if !args.is_empty() {
return parse::Error::new(Span::call_site(), "This attribute accepts no arguments")
.to_compile_error()
.into();
}
let fspan = f.span();
let ident = f.sig.ident.clone();
let ident_s = ident.to_string();
// XXX should we blacklist other attributes?
let valid_signature = f.sig.constness.is_none()
&& f.vis == Visibility::Inherited
&& f.sig.abi.is_none()
&& f.sig.inputs.is_empty()
&& f.sig.generics.params.is_empty()
&& f.sig.generics.where_clause.is_none()
&& f.sig.variadic.is_none()
&& match f.sig.output {
ReturnType::Default => true,
ReturnType::Type(_, ref ty) => match **ty {
Type::Tuple(ref tuple) => tuple.elems.is_empty(),
Type::Never(..) => true,
_ => false,
},
};
if !valid_signature {
return parse::Error::new(
fspan,
"`#[interrupt]` handlers must have signature `[unsafe] fn() [-> !]`",
)
.to_compile_error()
.into();
}
f.block.stmts = iter::once(
syn::parse2(quote! {{
// Check that this interrupt actually exists
let __irq_exists_check: interrupt::#ident;
}})
.unwrap(),
)
.chain(f.block.stmts)
.collect();
quote!(
#[doc(hidden)]
#[export_name = #ident_s]
#[allow(non_snake_case)]
#f
)
.into()
}
#[proc_macro]
pub fn interrupt_declare(item: TokenStream) -> TokenStream {
let name = syn::parse_macro_input!(item as syn::Ident);
@@ -130,7 +193,7 @@ pub fn interrupt_declare(item: TokenStream) -> TokenStream {
let result = quote! {
#[allow(non_camel_case_types)]
pub struct #name_interrupt(());
unsafe impl Interrupt for #name_interrupt {
unsafe impl ::embassy::interrupt::Interrupt for #name_interrupt {
type Priority = crate::interrupt::Priority;
fn number(&self) -> u16 {
use cortex_m::interrupt::InterruptNumber;
@@ -204,10 +267,6 @@ pub fn interrupt_take(item: TokenStream) -> TokenStream {
#[path = "chip/nrf.rs"]
mod chip;
#[cfg(feature = "stm32")]
#[path = "chip/stm32.rs"]
mod chip;
#[cfg(feature = "rp")]
#[path = "chip/rp.rs"]
mod chip;
@@ -221,7 +280,7 @@ struct MainArgs {
config: Option<syn::LitStr>,
}
#[cfg(any(feature = "nrf", feature = "stm32", feature = "rp"))]
#[cfg(any(feature = "nrf", feature = "rp"))]
#[proc_macro_attribute]
pub fn main(args: TokenStream, item: TokenStream) -> TokenStream {
let macro_args = syn::parse_macro_input!(args as syn::AttributeArgs);
@@ -256,12 +315,12 @@ pub fn main(args: TokenStream, item: TokenStream) -> TokenStream {
let args = task_fn.sig.inputs.clone();
if args.len() != 1 {
if args.len() != 2 {
task_fn
.sig
.span()
.unwrap()
.error("main function must have one argument")
.error("main function must have 2 arguments")
.emit();
fail = true;
}
@@ -305,7 +364,7 @@ pub fn main(args: TokenStream, item: TokenStream) -> TokenStream {
#chip_setup
executor.run(|spawner| {
spawner.spawn(__embassy_main(spawner)).unwrap();
spawner.spawn(__embassy_main(spawner, p)).unwrap();
})
}

2
embassy-nrf-examples/Cargo.toml
View File

@@ -19,7 +19,7 @@ defmt-error = []
[dependencies]
embassy = { version = "0.1.0", path = "../embassy", features = ["defmt", "defmt-trace"] }
embassy-traits = { version = "0.1.0", path = "../embassy-traits", features = ["defmt"] }
embassy-nrf = { version = "0.1.0", path = "../embassy-nrf", features = ["defmt", "defmt-trace", "52840"] }
embassy-nrf = { version = "0.1.0", path = "../embassy-nrf", features = ["defmt", "defmt-trace", "nrf52840"] }
defmt = "0.2.0"
defmt-rtt = "0.2.0"

3
embassy-nrf-examples/src/bin/blinky.rs
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@@ -17,8 +17,7 @@ use embassy_nrf::Peripherals;
use embedded_hal::digital::v2::OutputPin;
#[embassy::main]
async fn main(spawner: Spawner) {
let p = Peripherals::take().unwrap();
async fn main(spawner: Spawner, p: Peripherals) {
let mut led = Output::new(p.P0_13, Level::Low, OutputDrive::Standard);
loop {

4
embassy-nrf-examples/src/bin/buffered_uart.rs
View File

@@ -17,9 +17,7 @@ use example_common::*;
use futures::pin_mut;
#[embassy::main]
async fn main(spawner: Spawner) {
let p = Peripherals::take().unwrap();
async fn main(spawner: Spawner, p: Peripherals) {
let mut config = uarte::Config::default();
config.parity = uarte::Parity::EXCLUDED;
config.baudrate = uarte::Baudrate::BAUD115200;

4
embassy-nrf-examples/src/bin/executor_fairness_test.rs
View File

@@ -13,7 +13,7 @@ use core::task::Poll;
use defmt::panic;
use embassy::executor::Spawner;
use embassy::time::{Duration, Instant, Timer};
use embassy_nrf::interrupt;
use embassy_nrf::{interrupt, Peripherals};
#[embassy::task]
async fn run1() {
@@ -40,7 +40,7 @@ async fn run3() {
}
#[embassy::main]
async fn main(spawner: Spawner) {
async fn main(spawner: Spawner, p: Peripherals) {
unwrap!(spawner.spawn(run1()));
unwrap!(spawner.spawn(run2()));
unwrap!(spawner.spawn(run3()));

11
embassy-nrf-examples/src/bin/gpiote_channel.rs
View File

@@ -12,36 +12,29 @@ use example_common::*;
use defmt::panic;
use embassy::executor::Spawner;
use embassy_nrf::gpio::{Input, Pull};
use embassy_nrf::gpiote::{self, InputChannel, InputChannelPolarity};
use embassy_nrf::gpiote::{InputChannel, InputChannelPolarity};
use embassy_nrf::{interrupt, Peripherals};
#[embassy::main]
async fn main(spawner: Spawner) {
let p = Peripherals::take().unwrap();
let g = gpiote::initialize(p.GPIOTE, interrupt::take!(GPIOTE));
async fn main(spawner: Spawner, p: Peripherals) {
info!("Starting!");
let ch1 = InputChannel::new(
g,
p.GPIOTE_CH0,
Input::new(p.P0_11, Pull::Up),
InputChannelPolarity::HiToLo,
);
let ch2 = InputChannel::new(
g,
p.GPIOTE_CH1,
Input::new(p.P0_12, Pull::Up),
InputChannelPolarity::LoToHi,
);
let ch3 = InputChannel::new(
g,
p.GPIOTE_CH2,
Input::new(p.P0_24, Pull::Up),
InputChannelPolarity::Toggle,
);
let ch4 = InputChannel::new(
g,
p.GPIOTE_CH3,
Input::new(p.P0_25, Pull::Up),
InputChannelPolarity::Toggle,

17
embassy-nrf-examples/src/bin/gpiote_port.rs
View File

@@ -8,12 +8,11 @@
#[path = "../example_common.rs"]
mod example_common;
use core::pin::Pin;
use defmt::panic;
use embassy::executor::Spawner;
use embassy::traits::gpio::{WaitForHigh, WaitForLow};
use embassy_nrf::gpio::{AnyPin, Input, Pin as _, Pull};
use embassy_nrf::gpiote::{self, PortInput};
use embassy_nrf::gpiote::PortInput;
use embassy_nrf::interrupt;
use embassy_nrf::Peripherals;
use example_common::*;
@@ -29,15 +28,13 @@ async fn button_task(n: usize, mut pin: PortInput<'static, AnyPin>) {
}
#[embassy::main]
async fn main(spawner: Spawner) {
let p = Peripherals::take().unwrap();
async fn main(spawner: Spawner, p: Peripherals) {
info!("Starting!");
let g = gpiote::initialize(p.GPIOTE, interrupt::take!(GPIOTE));
let btn1 = PortInput::new(g, Input::new(p.P0_11.degrade(), Pull::Up));
let btn2 = PortInput::new(g, Input::new(p.P0_12.degrade(), Pull::Up));
let btn3 = PortInput::new(g, Input::new(p.P0_24.degrade(), Pull::Up));
let btn4 = PortInput::new(g, Input::new(p.P0_25.degrade(), Pull::Up));
let btn1 = PortInput::new(Input::new(p.P0_11.degrade(), Pull::Up));
let btn2 = PortInput::new(Input::new(p.P0_12.degrade(), Pull::Up));
let btn3 = PortInput::new(Input::new(p.P0_24.degrade(), Pull::Up));
let btn4 = PortInput::new(Input::new(p.P0_25.degrade(), Pull::Up));
spawner.spawn(button_task(1, btn1)).unwrap();
spawner.spawn(button_task(2, btn2)).unwrap();

3
embassy-nrf-examples/src/bin/multiprio.rs
View File

@@ -126,9 +126,8 @@ static EXECUTOR_LOW: Forever<Executor> = Forever::new();
fn main() -> ! {
info!("Hello World!");
let p = unwrap!(embassy_nrf::Peripherals::take());
let p = embassy_nrf::init(Default::default());
unsafe { embassy_nrf::system::configure(Default::default()) };
let rtc = RTC.put(rtc::RTC::new(p.RTC1, interrupt::take!(RTC1)));
rtc.start();
unsafe { embassy::time::set_clock(rtc) };

11
embassy-nrf-examples/src/bin/ppi.rs
View File

@@ -19,46 +19,37 @@ use embassy_nrf::{interrupt, Peripherals};
use gpiote::{OutputChannel, OutputChannelPolarity};
#[embassy::main]
async fn main(spawner: Spawner) {
let p = Peripherals::take().unwrap();
let g = gpiote::initialize(p.GPIOTE, interrupt::take!(GPIOTE));
async fn main(spawner: Spawner, p: Peripherals) {
info!("Starting!");
let button1 = InputChannel::new(
g,
p.GPIOTE_CH0,
Input::new(p.P0_11, Pull::Up),
InputChannelPolarity::HiToLo,
);
let button2 = InputChannel::new(
g,
p.GPIOTE_CH1,
Input::new(p.P0_12, Pull::Up),
InputChannelPolarity::HiToLo,
);
let button3 = InputChannel::new(
g,
p.GPIOTE_CH2,
Input::new(p.P0_24, Pull::Up),
InputChannelPolarity::HiToLo,
);
let button4 = InputChannel::new(
g,
p.GPIOTE_CH3,
Input::new(p.P0_25, Pull::Up),
InputChannelPolarity::HiToLo,
);
let led1 = OutputChannel::new(
g,
p.GPIOTE_CH4,
Output::new(p.P0_13, Level::Low, OutputDrive::Standard),
OutputChannelPolarity::Toggle,
);
let led2 = OutputChannel::new(
g,
p.GPIOTE_CH5,
Output::new(p.P0_14, Level::Low, OutputDrive::Standard),
OutputChannelPolarity::Toggle,

104
embassy-nrf-examples/src/bin/pwm.rs Normal file
View File

@@ -0,0 +1,104 @@
#![no_std]
#![no_main]
#![feature(min_type_alias_impl_trait)]
#![feature(impl_trait_in_bindings)]
#![feature(type_alias_impl_trait)]
#![allow(incomplete_features)]
#[path = "../example_common.rs"]
mod example_common;
use defmt::{panic, *};
use embassy::executor::Spawner;
use embassy::time::{Duration, Timer};
use embassy_nrf::pwm::{Prescaler, Pwm};
use embassy_nrf::{interrupt, Peripherals};
// for i in range(1024): print(int((math.sin(i/512*math.pi)*0.4+0.5)**2*32767), ', ', end='')
static DUTY: [u16; 1024] = [
8191, 8272, 8353, 8434, 8516, 8598, 8681, 8764, 8847, 8931, 9015, 9099, 9184, 9269, 9354, 9440,
9526, 9613, 9700, 9787, 9874, 9962, 10050, 10139, 10227, 10316, 10406, 10495, 10585, 10675,
10766, 10857, 10948, 11039, 11131, 11223, 11315, 11407, 11500, 11592, 11685, 11779, 11872,
11966, 12060, 12154, 12248, 12343, 12438, 12533, 12628, 12723, 12818, 12914, 13010, 13106,
13202, 13298, 13394, 13491, 13587, 13684, 13781, 13878, 13975, 14072, 14169, 14266, 14364,
14461, 14558, 14656, 14754, 14851, 14949, 15046, 15144, 15242, 15339, 15437, 15535, 15632,
15730, 15828, 15925, 16023, 16120, 16218, 16315, 16412, 16510, 16607, 16704, 16801, 16898,
16995, 17091, 17188, 17284, 17380, 17477, 17572, 17668, 17764, 17859, 17955, 18050, 18145,
18239, 18334, 18428, 18522, 18616, 18710, 18803, 18896, 18989, 19082, 19174, 19266, 19358,
19449, 19540, 19631, 19722, 19812, 19902, 19991, 20081, 20169, 20258, 20346, 20434, 20521,
20608, 20695, 20781, 20867, 20952, 21037, 21122, 21206, 21290, 21373, 21456, 21538, 21620,
21701, 21782, 21863, 21943, 22022, 22101, 22179, 22257, 22335, 22412, 22488, 22564, 22639,
22714, 22788, 22861, 22934, 23007, 23079, 23150, 23220, 23290, 23360, 23429, 23497, 23564,
23631, 23698, 23763, 23828, 23892, 23956, 24019, 24081, 24143, 24204, 24264, 24324, 24383,
24441, 24499, 24555, 24611, 24667, 24721, 24775, 24828, 24881, 24933, 24983, 25034, 25083,
25132, 25180, 25227, 25273, 25319, 25363, 25407, 25451, 25493, 25535, 25575, 25615, 25655,
25693, 25731, 25767, 25803, 25838, 25873, 25906, 25939, 25971, 26002, 26032, 26061, 26089,
26117, 26144, 26170, 26195, 26219, 26242, 26264, 26286, 26307, 26327, 26346, 26364, 26381,
26397, 26413, 26427, 26441, 26454, 26466, 26477, 26487, 26496, 26505, 26512, 26519, 26525,
26530, 26534, 26537, 26539, 26540, 26541, 26540, 26539, 26537, 26534, 26530, 26525, 26519,
26512, 26505, 26496, 26487, 26477, 26466, 26454, 26441, 26427, 26413, 26397, 26381, 26364,
26346, 26327, 26307, 26286, 26264, 26242, 26219, 26195, 26170, 26144, 26117, 26089, 26061,
26032, 26002, 25971, 25939, 25906, 25873, 25838, 25803, 25767, 25731, 25693, 25655, 25615,
25575, 25535, 25493, 25451, 25407, 25363, 25319, 25273, 25227, 25180, 25132, 25083, 25034,
24983, 24933, 24881, 24828, 24775, 24721, 24667, 24611, 24555, 24499, 24441, 24383, 24324,
24264, 24204, 24143, 24081, 24019, 23956, 23892, 23828, 23763, 23698, 23631, 23564, 23497,
23429, 23360, 23290, 23220, 23150, 23079, 23007, 22934, 22861, 22788, 22714, 22639, 22564,
22488, 22412, 22335, 22257, 22179, 22101, 22022, 21943, 21863, 21782, 21701, 21620, 21538,
21456, 21373, 21290, 21206, 21122, 21037, 20952, 20867, 20781, 20695, 20608, 20521, 20434,
20346, 20258, 20169, 20081, 19991, 19902, 19812, 19722, 19631, 19540, 19449, 19358, 19266,
19174, 19082, 18989, 18896, 18803, 18710, 18616, 18522, 18428, 18334, 18239, 18145, 18050,
17955, 17859, 17764, 17668, 17572, 17477, 17380, 17284, 17188, 17091, 16995, 16898, 16801,
16704, 16607, 16510, 16412, 16315, 16218, 16120, 16023, 15925, 15828, 15730, 15632, 15535,
15437, 15339, 15242, 15144, 15046, 14949, 14851, 14754, 14656, 14558, 14461, 14364, 14266,
14169, 14072, 13975, 13878, 13781, 13684, 13587, 13491, 13394, 13298, 13202, 13106, 13010,
12914, 12818, 12723, 12628, 12533, 12438, 12343, 12248, 12154, 12060, 11966, 11872, 11779,
11685, 11592, 11500, 11407, 11315, 11223, 11131, 11039, 10948, 10857, 10766, 10675, 10585,
10495, 10406, 10316, 10227, 10139, 10050, 9962, 9874, 9787, 9700, 9613, 9526, 9440, 9354, 9269,
9184, 9099, 9015, 8931, 8847, 8764, 8681, 8598, 8516, 8434, 8353, 8272, 8191, 8111, 8031, 7952,
7873, 7794, 7716, 7638, 7561, 7484, 7407, 7331, 7255, 7180, 7105, 7031, 6957, 6883, 6810, 6738,
6665, 6594, 6522, 6451, 6381, 6311, 6241, 6172, 6104, 6036, 5968, 5901, 5834, 5767, 5702, 5636,
5571, 5507, 5443, 5379, 5316, 5253, 5191, 5130, 5068, 5008, 4947, 4888, 4828, 4769, 4711, 4653,
4596, 4539, 4482, 4426, 4371, 4316, 4261, 4207, 4153, 4100, 4047, 3995, 3943, 3892, 3841, 3791,
3741, 3691, 3642, 3594, 3546, 3498, 3451, 3404, 3358, 3312, 3267, 3222, 3178, 3134, 3090, 3047,
3005, 2962, 2921, 2879, 2839, 2798, 2758, 2719, 2680, 2641, 2603, 2565, 2528, 2491, 2454, 2418,
2382, 2347, 2312, 2278, 2244, 2210, 2177, 2144, 2112, 2080, 2048, 2017, 1986, 1956, 1926, 1896,
1867, 1838, 1810, 1781, 1754, 1726, 1699, 1673, 1646, 1620, 1595, 1570, 1545, 1520, 1496, 1472,
1449, 1426, 1403, 1380, 1358, 1336, 1315, 1294, 1273, 1252, 1232, 1212, 1192, 1173, 1154, 1135,
1117, 1099, 1081, 1063, 1046, 1029, 1012, 996, 980, 964, 948, 933, 918, 903, 888, 874, 860,
846, 833, 819, 806, 793, 781, 768, 756, 744, 733, 721, 710, 699, 688, 677, 667, 657, 647, 637,
627, 618, 609, 599, 591, 582, 574, 565, 557, 549, 541, 534, 526, 519, 512, 505, 498, 492, 485,
479, 473, 467, 461, 455, 450, 444, 439, 434, 429, 424, 419, 415, 410, 406, 402, 398, 394, 390,
386, 383, 379, 376, 373, 370, 367, 364, 361, 359, 356, 354, 351, 349, 347, 345, 343, 342, 340,
338, 337, 336, 334, 333, 332, 331, 330, 330, 329, 328, 328, 328, 327, 327, 327, 327, 327, 328,
328, 328, 329, 330, 330, 331, 332, 333, 334, 336, 337, 338, 340, 342, 343, 345, 347, 349, 351,
354, 356, 359, 361, 364, 367, 370, 373, 376, 379, 383, 386, 390, 394, 398, 402, 406, 410, 415,
419, 424, 429, 434, 439, 444, 450, 455, 461, 467, 473, 479, 485, 492, 498, 505, 512, 519, 526,
534, 541, 549, 557, 565, 574, 582, 591, 599, 609, 618, 627, 637, 647, 657, 667, 677, 688, 699,
710, 721, 733, 744, 756, 768, 781, 793, 806, 819, 833, 846, 860, 874, 888, 903, 918, 933, 948,
964, 980, 996, 1012, 1029, 1046, 1063, 1081, 1099, 1117, 1135, 1154, 1173, 1192, 1212, 1232,
1252, 1273, 1294, 1315, 1336, 1358, 1380, 1403, 1426, 1449, 1472, 1496, 1520, 1545, 1570, 1595,
1620, 1646, 1673, 1699, 1726, 1754, 1781, 1810, 1838, 1867, 1896, 1926, 1956, 1986, 2017, 2048,
2080, 2112, 2144, 2177, 2210, 2244, 2278, 2312, 2347, 2382, 2418, 2454, 2491, 2528, 2565, 2603,
2641, 2680, 2719, 2758, 2798, 2839, 2879, 2921, 2962, 3005, 3047, 3090, 3134, 3178, 3222, 3267,
3312, 3358, 3404, 3451, 3498, 3546, 3594, 3642, 3691, 3741, 3791, 3841, 3892, 3943, 3995, 4047,
4100, 4153, 4207, 4261, 4316, 4371, 4426, 4482, 4539, 4596, 4653, 4711, 4769, 4828, 4888, 4947,
5008, 5068, 5130, 5191, 5253, 5316, 5379, 5443, 5507, 5571, 5636, 5702, 5767, 5834, 5901, 5968,
6036, 6104, 6172, 6241, 6311, 6381, 6451, 6522, 6594, 6665, 6738, 6810, 6883, 6957, 7031, 7105,
7180, 7255, 7331, 7407, 7484, 7561, 7638, 7716, 7794, 7873, 7952, 8031, 8111,
];
#[embassy::main]
async fn main(spawner: Spawner, p: Peripherals) {
let pwm = Pwm::new(p.PWM0, p.P0_13, p.P0_14, p.P0_16, p.P0_15);
pwm.set_prescaler(Prescaler::Div1);
info!("pwm initialized!");
let mut i = 0;
loop {
i += 1;
pwm.set_duty(0, DUTY[i % 1024]);
pwm.set_duty(1, DUTY[(i + 256) % 1024]);
pwm.set_duty(2, DUTY[(i + 512) % 1024]);
pwm.set_duty(3, DUTY[(i + 768) % 1024]);
Timer::after(Duration::from_millis(3)).await;
}
}

4
embassy-nrf-examples/src/bin/qspi.rs
View File

@@ -23,9 +23,7 @@ const PAGE_SIZE: usize = 4096;
struct AlignedBuf([u8; 4096]);
#[embassy::main]
async fn main(spawner: Spawner) {
let p = Peripherals::take().unwrap();
async fn main(spawner: Spawner, p: Peripherals) {
let csn = p.P0_17;
let sck = p.P0_19;
let io0 = p.P0_20;

3
embassy-nrf-examples/src/bin/raw_spawn.rs
View File

@@ -37,9 +37,8 @@ static EXECUTOR: Forever<Executor> = Forever::new();
fn main() -> ! {
info!("Hello World!");
let p = unwrap!(embassy_nrf::Peripherals::take());
let p = embassy_nrf::init(Default::default());
unsafe { embassy_nrf::system::configure(Default::default()) };
let rtc = RTC.put(rtc::RTC::new(p.RTC1, interrupt::take!(RTC1)));
rtc.start();
unsafe { embassy::time::set_clock(rtc) };

13
embassy-nrf-examples/src/bin/spim.rs
View File

@@ -19,19 +19,14 @@ use embedded_hal::digital::v2::*;
use example_common::*;
#[embassy::main]
async fn main(spawner: Spawner) {
async fn main(spawner: Spawner, p: Peripherals) {
info!("running!");
let p = unsafe { Peripherals::steal() };
let config = spim::Config {
frequency: spim::Frequency::M16,
mode: spim::MODE_0,
orc: 0x00,
};
let mut config = spim::Config::default();
config.frequency = spim::Frequency::M16;
let irq = interrupt::take!(SPIM3);
let mut spim = spim::Spim::new(p.SPIM3, irq, p.P0_29, p.P0_28, p.P0_30, config);
let mut spim = spim::Spim::new(p.SPI3, irq, p.P0_29, p.P0_28, p.P0_30, config);
let mut ncs = Output::new(p.P0_31, Level::High, OutputDrive::Standard);

3
embassy-nrf-examples/src/bin/timer.rs
View File

@@ -7,6 +7,7 @@
#[path = "../example_common.rs"]
mod example_common;
use embassy_nrf::Peripherals;
use example_common::*;
use defmt::panic;
@@ -30,7 +31,7 @@ async fn run2() {
}
#[embassy::main]
async fn main(spawner: Spawner) {
async fn main(spawner: Spawner, p: Peripherals) {
unwrap!(spawner.spawn(run1()));
unwrap!(spawner.spawn(run2()));
}

32
embassy-nrf-examples/src/bin/uart.rs
View File

@@ -17,9 +17,7 @@ use embassy_nrf::gpio::NoPin;
use embassy_nrf::{interrupt, uarte, Peripherals};
#[embassy::main]
async fn main(spawner: Spawner) {
let p = unsafe { Peripherals::steal() };
async fn main(spawner: Spawner, p: Peripherals) {
let mut config = uarte::Config::default();
config.parity = uarte::Parity::EXCLUDED;
config.baudrate = uarte::Baudrate::BAUD115200;
@@ -42,33 +40,5 @@ async fn main(spawner: Spawner) {
unwrap!(uart.read(&mut buf).await);
info!("writing...");
unwrap!(uart.write(&buf).await);
/*
// `receive()` doesn't return until the buffer has been completely filled with
// incoming data, which in this case is 8 bytes.
//
// This example shows how to use `select` to run an uart receive concurrently with a
// 1 second timer, effectively adding a timeout to the receive operation.
let recv_fut = uart.read(&mut buf);
let timer_fut = Timer::after(Duration::from_millis(1000));
let received_len = match select(recv_fut, timer_fut).await {
// recv_fut completed first, so we've received `buf_len` bytes.
Either::Left(_) => buf_len,
// timer_fut completed first. `select` gives us back the future that didn't complete, which
// is `recv_fut` in this case, so we can do further stuff with it.
//
// The recv_fut would stop the uart read automatically when dropped. However, we want to know how
// many bytes have been received, so we have to "gracefully stop" it with `.stop()`.
Either::Right((_, recv_fut)) => recv_fut.stop().await,
};
let received = &mut buf[..received_len];
if !received.is_empty() {
info!("read done, got {}", received);
// Echo back received data
unwrap!(uart.write(received).await);
}
*/
}
}

4
embassy-nrf-examples/src/bin/uart_idle.rs
View File

@@ -18,9 +18,7 @@ use embassy_nrf::gpio::NoPin;
use embassy_nrf::{interrupt, uarte, Peripherals};
#[embassy::main]
async fn main(spawner: Spawner) {
let p = unsafe { Peripherals::steal() };
async fn main(spawner: Spawner, p: Peripherals) {
let mut config = uarte::Config::default();
config.parity = uarte::Parity::EXCLUDED;
config.baudrate = uarte::Baudrate::BAUD115200;

16
embassy-nrf/Cargo.toml
View File

@@ -11,11 +11,13 @@ defmt-info = [ ]
defmt-warn = [ ]
defmt-error = [ ]
52810 = ["nrf52810-pac"]
52811 = ["nrf52811-pac"]
52832 = ["nrf52832-pac"]
52833 = ["nrf52833-pac"]
52840 = ["nrf52840-pac"]
nrf52805 = ["nrf52805-pac"]
nrf52810 = ["nrf52810-pac"]
nrf52811 = ["nrf52811-pac"]
nrf52820 = ["nrf52820-pac"]
nrf52832 = ["nrf52832-pac"]
nrf52833 = ["nrf52833-pac"]
nrf52840 = ["nrf52840-pac"]
[dependencies]
@@ -30,10 +32,12 @@ cortex-m = "0.7.1"
embedded-hal = { version = "0.2.4" }
embedded-dma = { version = "0.1.2" }
futures = { version = "0.3.5", default-features = false }
critical-section = "0.2.1"
nrf52805-pac = { version = "0.1.0", optional = true, features = [ "rt" ], git = "https://github.com/Dirbaio/nrf52805-pac"}
nrf52810-pac = { version = "0.9.0", optional = true, features = [ "rt" ]}
nrf52811-pac = { version = "0.9.1", optional = true, features = [ "rt" ]}
nrf52820-pac = { version = "0.1.0", optional = true, features = [ "rt" ], git = "https://github.com/Dirbaio/nrf52820-pac"}
nrf52832-pac = { version = "0.9.0", optional = true, features = [ "rt" ]}
nrf52833-pac = { version = "0.9.0", optional = true, features = [ "rt" ]}
nrf52840-pac = { version = "0.9.0", optional = true, features = [ "rt" ]}
critical-section = "0.2.1"

181
embassy-nrf/src/chips/nrf52805.rs Normal file
View File

@@ -0,0 +1,181 @@
pub use nrf52805_pac as pac;
pub const EASY_DMA_SIZE: usize = (1 << 14) - 1;
pub const FORCE_COPY_BUFFER_SIZE: usize = 256;
embassy_extras::peripherals! {
// RTC
RTC0,
RTC1,
// UARTE
UARTE0,
// SPI/TWI
TWI0,
SPI0,
// SAADC
SAADC,
// TIMER
TIMER0,
TIMER1,
TIMER2,
// GPIOTE
GPIOTE_CH0,
GPIOTE_CH1,
GPIOTE_CH2,
GPIOTE_CH3,
GPIOTE_CH4,
GPIOTE_CH5,
GPIOTE_CH6,
GPIOTE_CH7,
// PPI
PPI_CH0,
PPI_CH1,
PPI_CH2,
PPI_CH3,
PPI_CH4,
PPI_CH5,
PPI_CH6,
PPI_CH7,
PPI_CH8,
PPI_CH9,
PPI_CH10,
PPI_CH11,
PPI_CH12,
PPI_CH13,
PPI_CH14,
PPI_CH15,
PPI_CH16,
PPI_CH17,
PPI_CH18,
PPI_CH19,
PPI_CH20,
PPI_CH21,
PPI_CH22,
PPI_CH23,
PPI_CH24,
PPI_CH25,
PPI_CH26,
PPI_CH27,
PPI_CH28,
PPI_CH29,
PPI_CH30,
PPI_CH31,
PPI_GROUP0,
PPI_GROUP1,
PPI_GROUP2,
PPI_GROUP3,
PPI_GROUP4,
PPI_GROUP5,
// GPIO port 0
P0_00,
P0_01,
P0_02,
P0_03,
P0_04,
P0_05,
P0_06,
P0_07,
P0_08,
P0_09,
P0_10,
P0_11,
P0_12,
P0_13,
P0_14,
P0_15,
P0_16,
P0_17,
P0_18,
P0_19,
P0_20,
P0_21,
P0_22,
P0_23,
P0_24,
P0_25,
P0_26,
P0_27,
P0_28,
P0_29,
P0_30,
P0_31,
}
impl_uarte!(UARTE0, UARTE0, UARTE0_UART0);
impl_spim!(SPI0, SPIM0, SPIM0_SPIS0_SPI0);
impl_twim!(TWI0, TWIM0, TWIM0_TWIS0_TWI0);
impl_timer!(TIMER0, TIMER0, TIMER0);
impl_timer!(TIMER1, TIMER1, TIMER1);
impl_timer!(TIMER2, TIMER2, TIMER2);
impl_pin!(P0_00, 0, 0);
impl_pin!(P0_01, 0, 1);
impl_pin!(P0_02, 0, 2);
impl_pin!(P0_03, 0, 3);
impl_pin!(P0_04, 0, 4);
impl_pin!(P0_05, 0, 5);
impl_pin!(P0_06, 0, 6);
impl_pin!(P0_07, 0, 7);
impl_pin!(P0_08, 0, 8);
impl_pin!(P0_09, 0, 9);
impl_pin!(P0_10, 0, 10);
impl_pin!(P0_11, 0, 11);
impl_pin!(P0_12, 0, 12);
impl_pin!(P0_13, 0, 13);
impl_pin!(P0_14, 0, 14);
impl_pin!(P0_15, 0, 15);
impl_pin!(P0_16, 0, 16);
impl_pin!(P0_17, 0, 17);
impl_pin!(P0_18, 0, 18);
impl_pin!(P0_19, 0, 19);
impl_pin!(P0_20, 0, 20);
impl_pin!(P0_21, 0, 21);
impl_pin!(P0_22, 0, 22);
impl_pin!(P0_23, 0, 23);
impl_pin!(P0_24, 0, 24);
impl_pin!(P0_25, 0, 25);
impl_pin!(P0_26, 0, 26);
impl_pin!(P0_27, 0, 27);
impl_pin!(P0_28, 0, 28);
impl_pin!(P0_29, 0, 29);
impl_pin!(P0_30, 0, 30);
impl_pin!(P0_31, 0, 31);
pub mod irqs {
use embassy_macros::interrupt_declare as declare;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(TWIM0_TWIS0_TWI0);
declare!(SPIM0_SPIS0_SPI0);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2);
declare!(SWI3);
declare!(SWI4);
declare!(SWI5);
}

189
embassy-nrf/src/chips/nrf52810.rs Normal file
View File

@@ -0,0 +1,189 @@
pub use nrf52810_pac as pac;
pub const EASY_DMA_SIZE: usize = (1 << 10) - 1;
pub const FORCE_COPY_BUFFER_SIZE: usize = 256;
embassy_extras::peripherals! {
// RTC
RTC0,
RTC1,
// UARTE
UARTE0,
// SPI/TWI
TWI0,
SPI0,
// SAADC
SAADC,
// PWM
PWM0,
// TIMER
TIMER0,
TIMER1,
TIMER2,
// GPIOTE
GPIOTE_CH0,
GPIOTE_CH1,
GPIOTE_CH2,
GPIOTE_CH3,
GPIOTE_CH4,
GPIOTE_CH5,
GPIOTE_CH6,
GPIOTE_CH7,
// PPI
PPI_CH0,
PPI_CH1,
PPI_CH2,
PPI_CH3,
PPI_CH4,
PPI_CH5,
PPI_CH6,
PPI_CH7,
PPI_CH8,
PPI_CH9,
PPI_CH10,
PPI_CH11,
PPI_CH12,
PPI_CH13,
PPI_CH14,
PPI_CH15,
PPI_CH16,
PPI_CH17,
PPI_CH18,
PPI_CH19,
PPI_CH20,
PPI_CH21,
PPI_CH22,
PPI_CH23,
PPI_CH24,
PPI_CH25,
PPI_CH26,
PPI_CH27,
PPI_CH28,
PPI_CH29,
PPI_CH30,
PPI_CH31,
PPI_GROUP0,
PPI_GROUP1,
PPI_GROUP2,
PPI_GROUP3,
PPI_GROUP4,
PPI_GROUP5,
// GPIO port 0
P0_00,
P0_01,
P0_02,
P0_03,
P0_04,
P0_05,
P0_06,
P0_07,
P0_08,
P0_09,
P0_10,
P0_11,
P0_12,
P0_13,
P0_14,
P0_15,
P0_16,
P0_17,
P0_18,
P0_19,
P0_20,
P0_21,
P0_22,
P0_23,
P0_24,
P0_25,
P0_26,
P0_27,
P0_28,
P0_29,
P0_30,
P0_31,
}
impl_uarte!(UARTE0, UARTE0, UARTE0_UART0);
impl_spim!(SPI0, SPIM0, SPIM0_SPIS0_SPI0);
impl_twim!(TWI0, TWIM0, TWIM0_TWIS0_TWI0);
impl_pwm!(PWM0, PWM0, PWM0);
impl_timer!(TIMER0, TIMER0, TIMER0);
impl_timer!(TIMER1, TIMER1, TIMER1);
impl_timer!(TIMER2, TIMER2, TIMER2);
impl_pin!(P0_00, 0, 0);
impl_pin!(P0_01, 0, 1);
impl_pin!(P0_02, 0, 2);
impl_pin!(P0_03, 0, 3);
impl_pin!(P0_04, 0, 4);
impl_pin!(P0_05, 0, 5);
impl_pin!(P0_06, 0, 6);
impl_pin!(P0_07, 0, 7);
impl_pin!(P0_08, 0, 8);
impl_pin!(P0_09, 0, 9);
impl_pin!(P0_10, 0, 10);
impl_pin!(P0_11, 0, 11);
impl_pin!(P0_12, 0, 12);
impl_pin!(P0_13, 0, 13);
impl_pin!(P0_14, 0, 14);
impl_pin!(P0_15, 0, 15);
impl_pin!(P0_16, 0, 16);
impl_pin!(P0_17, 0, 17);
impl_pin!(P0_18, 0, 18);
impl_pin!(P0_19, 0, 19);
impl_pin!(P0_20, 0, 20);
impl_pin!(P0_21, 0, 21);
impl_pin!(P0_22, 0, 22);
impl_pin!(P0_23, 0, 23);
impl_pin!(P0_24, 0, 24);
impl_pin!(P0_25, 0, 25);
impl_pin!(P0_26, 0, 26);
impl_pin!(P0_27, 0, 27);
impl_pin!(P0_28, 0, 28);
impl_pin!(P0_29, 0, 29);
impl_pin!(P0_30, 0, 30);
impl_pin!(P0_31, 0, 31);
pub mod irqs {
use embassy_macros::interrupt_declare as declare;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(TWIM0_TWIS0_TWI0);
declare!(SPIM0_SPIS0_SPI0);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2);
declare!(SWI3);
declare!(SWI4);
declare!(SWI5);
declare!(PWM0);
declare!(PDM);
}

190
embassy-nrf/src/chips/nrf52811.rs Normal file
View File

@@ -0,0 +1,190 @@
pub use nrf52811_pac as pac;
pub const EASY_DMA_SIZE: usize = (1 << 14) - 1;
pub const FORCE_COPY_BUFFER_SIZE: usize = 256;
embassy_extras::peripherals! {
// RTC
RTC0,
RTC1,
// UARTE
UARTE0,
// SPI/TWI
TWISPI0,
SPI1,
// SAADC
SAADC,
// PWM
PWM0,
// TIMER
TIMER0,
TIMER1,
TIMER2,
// GPIOTE
GPIOTE_CH0,
GPIOTE_CH1,
GPIOTE_CH2,
GPIOTE_CH3,
GPIOTE_CH4,
GPIOTE_CH5,
GPIOTE_CH6,
GPIOTE_CH7,
// PPI
PPI_CH0,
PPI_CH1,
PPI_CH2,
PPI_CH3,
PPI_CH4,
PPI_CH5,
PPI_CH6,
PPI_CH7,
PPI_CH8,
PPI_CH9,
PPI_CH10,
PPI_CH11,
PPI_CH12,
PPI_CH13,
PPI_CH14,
PPI_CH15,
PPI_CH16,
PPI_CH17,
PPI_CH18,
PPI_CH19,
PPI_CH20,
PPI_CH21,
PPI_CH22,
PPI_CH23,
PPI_CH24,
PPI_CH25,
PPI_CH26,
PPI_CH27,
PPI_CH28,
PPI_CH29,
PPI_CH30,
PPI_CH31,
PPI_GROUP0,
PPI_GROUP1,
PPI_GROUP2,
PPI_GROUP3,
PPI_GROUP4,
PPI_GROUP5,
// GPIO port 0
P0_00,
P0_01,
P0_02,
P0_03,
P0_04,
P0_05,
P0_06,
P0_07,
P0_08,
P0_09,
P0_10,
P0_11,
P0_12,
P0_13,
P0_14,
P0_15,
P0_16,
P0_17,
P0_18,
P0_19,
P0_20,
P0_21,
P0_22,
P0_23,
P0_24,
P0_25,
P0_26,
P0_27,
P0_28,
P0_29,
P0_30,
P0_31,
}
impl_uarte!(UARTE0, UARTE0, UARTE0_UART0);
impl_spim!(TWISPI0, SPIM0, TWIM0_TWIS0_TWI0_SPIM0_SPIS0_SPI0);
impl_spim!(SPI1, SPIM1, SPIM1_SPIS1_SPI1);
impl_twim!(TWISPI0, TWIM0, TWIM0_TWIS0_TWI0_SPIM0_SPIS0_SPI0);
impl_pwm!(PWM0, PWM0, PWM0);
impl_timer!(TIMER0, TIMER0, TIMER0);
impl_timer!(TIMER1, TIMER1, TIMER1);
impl_timer!(TIMER2, TIMER2, TIMER2);
impl_pin!(P0_00, 0, 0);
impl_pin!(P0_01, 0, 1);
impl_pin!(P0_02, 0, 2);
impl_pin!(P0_03, 0, 3);
impl_pin!(P0_04, 0, 4);
impl_pin!(P0_05, 0, 5);
impl_pin!(P0_06, 0, 6);
impl_pin!(P0_07, 0, 7);
impl_pin!(P0_08, 0, 8);
impl_pin!(P0_09, 0, 9);
impl_pin!(P0_10, 0, 10);
impl_pin!(P0_11, 0, 11);
impl_pin!(P0_12, 0, 12);
impl_pin!(P0_13, 0, 13);
impl_pin!(P0_14, 0, 14);
impl_pin!(P0_15, 0, 15);
impl_pin!(P0_16, 0, 16);
impl_pin!(P0_17, 0, 17);
impl_pin!(P0_18, 0, 18);
impl_pin!(P0_19, 0, 19);
impl_pin!(P0_20, 0, 20);
impl_pin!(P0_21, 0, 21);
impl_pin!(P0_22, 0, 22);
impl_pin!(P0_23, 0, 23);
impl_pin!(P0_24, 0, 24);
impl_pin!(P0_25, 0, 25);
impl_pin!(P0_26, 0, 26);
impl_pin!(P0_27, 0, 27);
impl_pin!(P0_28, 0, 28);
impl_pin!(P0_29, 0, 29);
impl_pin!(P0_30, 0, 30);
impl_pin!(P0_31, 0, 31);
pub mod irqs {
use embassy_macros::interrupt_declare as declare;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(TWIM0_TWIS0_TWI0_SPIM0_SPIS0_SPI0);
declare!(SPIM1_SPIS1_SPI1);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2);
declare!(SWI3);
declare!(SWI4);
declare!(SWI5);
declare!(PWM0);
declare!(PDM);
}

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pub use nrf52820_pac as pac;
pub const EASY_DMA_SIZE: usize = (1 << 15) - 1;
pub const FORCE_COPY_BUFFER_SIZE: usize = 512;
embassy_extras::peripherals! {
// RTC
RTC0,
RTC1,
// UARTE
UARTE0,
// SPI/TWI
TWISPI0,
TWISPI1,
// SAADC
SAADC,
// TIMER
TIMER0,
TIMER1,
TIMER2,
TIMER3,
// GPIOTE
GPIOTE_CH0,
GPIOTE_CH1,
GPIOTE_CH2,
GPIOTE_CH3,
GPIOTE_CH4,
GPIOTE_CH5,
GPIOTE_CH6,
GPIOTE_CH7,
// PPI
PPI_CH0,
PPI_CH1,
PPI_CH2,
PPI_CH3,
PPI_CH4,
PPI_CH5,
PPI_CH6,
PPI_CH7,
PPI_CH8,
PPI_CH9,
PPI_CH10,
PPI_CH11,
PPI_CH12,
PPI_CH13,
PPI_CH14,
PPI_CH15,
PPI_CH16,
PPI_CH17,
PPI_CH18,
PPI_CH19,
PPI_CH20,
PPI_CH21,
PPI_CH22,
PPI_CH23,
PPI_CH24,
PPI_CH25,
PPI_CH26,
PPI_CH27,
PPI_CH28,
PPI_CH29,
PPI_CH30,
PPI_CH31,
PPI_GROUP0,
PPI_GROUP1,
PPI_GROUP2,
PPI_GROUP3,
PPI_GROUP4,
PPI_GROUP5,
// GPIO port 0
P0_00,
P0_01,
P0_02,
P0_03,
P0_04,
P0_05,
P0_06,
P0_07,
P0_08,
P0_09,
P0_10,
P0_11,
P0_12,
P0_13,
P0_14,
P0_15,
P0_16,
P0_17,
P0_18,
P0_19,
P0_20,
P0_21,
P0_22,
P0_23,
P0_24,
P0_25,
P0_26,
P0_27,
P0_28,
P0_29,
P0_30,
P0_31,
}
impl_uarte!(UARTE0, UARTE0, UARTE0_UART0);
impl_spim!(TWISPI0, SPIM0, SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
impl_spim!(TWISPI1, SPIM1, SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
impl_twim!(TWISPI0, TWIM0, SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
impl_twim!(TWISPI1, TWIM1, SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
impl_timer!(TIMER0, TIMER0, TIMER0);
impl_timer!(TIMER1, TIMER1, TIMER1);
impl_timer!(TIMER2, TIMER2, TIMER2);
impl_timer!(TIMER3, TIMER3, TIMER3, extended);
impl_pin!(P0_00, 0, 0);
impl_pin!(P0_01, 0, 1);
impl_pin!(P0_02, 0, 2);
impl_pin!(P0_03, 0, 3);
impl_pin!(P0_04, 0, 4);
impl_pin!(P0_05, 0, 5);
impl_pin!(P0_06, 0, 6);
impl_pin!(P0_07, 0, 7);
impl_pin!(P0_08, 0, 8);
impl_pin!(P0_09, 0, 9);
impl_pin!(P0_10, 0, 10);
impl_pin!(P0_11, 0, 11);
impl_pin!(P0_12, 0, 12);
impl_pin!(P0_13, 0, 13);
impl_pin!(P0_14, 0, 14);
impl_pin!(P0_15, 0, 15);
impl_pin!(P0_16, 0, 16);
impl_pin!(P0_17, 0, 17);
impl_pin!(P0_18, 0, 18);
impl_pin!(P0_19, 0, 19);
impl_pin!(P0_20, 0, 20);
impl_pin!(P0_21, 0, 21);
impl_pin!(P0_22, 0, 22);
impl_pin!(P0_23, 0, 23);
impl_pin!(P0_24, 0, 24);
impl_pin!(P0_25, 0, 25);
impl_pin!(P0_26, 0, 26);
impl_pin!(P0_27, 0, 27);
impl_pin!(P0_28, 0, 28);
impl_pin!(P0_29, 0, 29);
impl_pin!(P0_30, 0, 30);
impl_pin!(P0_31, 0, 31);
pub mod irqs {
use embassy_macros::interrupt_declare as declare;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
declare!(SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
declare!(GPIOTE);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2_EGU2);
declare!(SWI3_EGU3);
declare!(SWI4_EGU4);
declare!(SWI5_EGU5);
declare!(TIMER3);
declare!(USBD);
}

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embassy-nrf/src/chips/nrf52832.rs Normal file
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pub use nrf52832_pac as pac;
pub const EASY_DMA_SIZE: usize = (1 << 8) - 1;
pub const FORCE_COPY_BUFFER_SIZE: usize = 255;
embassy_extras::peripherals! {
// RTC
RTC0,
RTC1,
RTC2,
// UARTE
UARTE0,
// SPI/TWI
TWISPI0,
TWISPI1,
SPI2,
SPI3,
// SAADC
SAADC,
// PWM
PWM0,
PWM1,
PWM2,
// TIMER
TIMER0,
TIMER1,
TIMER2,
TIMER3,
TIMER4,
// GPIOTE
GPIOTE_CH0,
GPIOTE_CH1,
GPIOTE_CH2,
GPIOTE_CH3,
GPIOTE_CH4,
GPIOTE_CH5,
GPIOTE_CH6,
GPIOTE_CH7,
// PPI
PPI_CH0,
PPI_CH1,
PPI_CH2,
PPI_CH3,
PPI_CH4,
PPI_CH5,
PPI_CH6,
PPI_CH7,
PPI_CH8,
PPI_CH9,
PPI_CH10,
PPI_CH11,
PPI_CH12,
PPI_CH13,
PPI_CH14,
PPI_CH15,
PPI_CH16,
PPI_CH17,
PPI_CH18,
PPI_CH19,
PPI_CH20,
PPI_CH21,
PPI_CH22,
PPI_CH23,
PPI_CH24,
PPI_CH25,
PPI_CH26,
PPI_CH27,
PPI_CH28,
PPI_CH29,
PPI_CH30,
PPI_CH31,
PPI_GROUP0,
PPI_GROUP1,
PPI_GROUP2,
PPI_GROUP3,
PPI_GROUP4,
PPI_GROUP5,
// GPIO port 0
P0_00,
P0_01,
P0_02,
P0_03,
P0_04,
P0_05,
P0_06,
P0_07,
P0_08,
P0_09,
P0_10,
P0_11,
P0_12,
P0_13,
P0_14,
P0_15,
P0_16,
P0_17,
P0_18,
P0_19,
P0_20,
P0_21,
P0_22,
P0_23,
P0_24,
P0_25,
P0_26,
P0_27,
P0_28,
P0_29,
P0_30,
P0_31,
}
impl_uarte!(UARTE0, UARTE0, UARTE0_UART0);
impl_spim!(TWISPI0, SPIM0, SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
impl_spim!(TWISPI1, SPIM1, SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
impl_spim!(SPI2, SPIM2, SPIM2_SPIS2_SPI2);
impl_twim!(TWISPI0, TWIM0, SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
impl_twim!(TWISPI1, TWIM1, SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
impl_pwm!(PWM0, PWM0, PWM0);
impl_pwm!(PWM1, PWM1, PWM1);
impl_pwm!(PWM2, PWM2, PWM2);
impl_timer!(TIMER0, TIMER0, TIMER0);
impl_timer!(TIMER1, TIMER1, TIMER1);
impl_timer!(TIMER2, TIMER2, TIMER2);
impl_timer!(TIMER3, TIMER3, TIMER3, extended);
impl_timer!(TIMER4, TIMER4, TIMER4, extended);
impl_pin!(P0_00, 0, 0);
impl_pin!(P0_01, 0, 1);
impl_pin!(P0_02, 0, 2);
impl_pin!(P0_03, 0, 3);
impl_pin!(P0_04, 0, 4);
impl_pin!(P0_05, 0, 5);
impl_pin!(P0_06, 0, 6);
impl_pin!(P0_07, 0, 7);
impl_pin!(P0_08, 0, 8);
impl_pin!(P0_09, 0, 9);
impl_pin!(P0_10, 0, 10);
impl_pin!(P0_11, 0, 11);
impl_pin!(P0_12, 0, 12);
impl_pin!(P0_13, 0, 13);
impl_pin!(P0_14, 0, 14);
impl_pin!(P0_15, 0, 15);
impl_pin!(P0_16, 0, 16);
impl_pin!(P0_17, 0, 17);
impl_pin!(P0_18, 0, 18);
impl_pin!(P0_19, 0, 19);
impl_pin!(P0_20, 0, 20);
impl_pin!(P0_21, 0, 21);
impl_pin!(P0_22, 0, 22);
impl_pin!(P0_23, 0, 23);
impl_pin!(P0_24, 0, 24);
impl_pin!(P0_25, 0, 25);
impl_pin!(P0_26, 0, 26);
impl_pin!(P0_27, 0, 27);
impl_pin!(P0_28, 0, 28);
impl_pin!(P0_29, 0, 29);
impl_pin!(P0_30, 0, 30);
impl_pin!(P0_31, 0, 31);
pub mod irqs {
use embassy_macros::interrupt_declare as declare;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
declare!(SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
declare!(NFCT);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP_LPCOMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2_EGU2);
declare!(SWI3_EGU3);
declare!(SWI4_EGU4);
declare!(SWI5_EGU5);
declare!(TIMER3);
declare!(TIMER4);
declare!(PWM0);
declare!(PDM);
declare!(MWU);
declare!(PWM1);
declare!(PWM2);
declare!(SPIM2_SPIS2_SPI2);
declare!(RTC2);
declare!(I2S);
declare!(FPU);
}

257
embassy-nrf/src/chips/nrf52833.rs Normal file
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pub use nrf52833_pac as pac;
pub const EASY_DMA_SIZE: usize = (1 << 16) - 1;
pub const FORCE_COPY_BUFFER_SIZE: usize = 512;
embassy_extras::peripherals! {
// RTC
RTC0,
RTC1,
RTC2,
// UARTE
UARTE0,
UARTE1,
// SPI/TWI
TWISPI0,
TWISPI1,
SPI2,
SPI3,
// SAADC
SAADC,
// PWM
PWM0,
PWM1,
PWM2,
PWM3,
// TIMER
TIMER0,
TIMER1,
TIMER2,
TIMER3,
TIMER4,
// GPIOTE
GPIOTE_CH0,
GPIOTE_CH1,
GPIOTE_CH2,
GPIOTE_CH3,
GPIOTE_CH4,
GPIOTE_CH5,
GPIOTE_CH6,
GPIOTE_CH7,
// PPI
PPI_CH0,
PPI_CH1,
PPI_CH2,
PPI_CH3,
PPI_CH4,
PPI_CH5,
PPI_CH6,
PPI_CH7,
PPI_CH8,
PPI_CH9,
PPI_CH10,
PPI_CH11,
PPI_CH12,
PPI_CH13,
PPI_CH14,
PPI_CH15,
PPI_CH16,
PPI_CH17,
PPI_CH18,
PPI_CH19,
PPI_CH20,
PPI_CH21,
PPI_CH22,
PPI_CH23,
PPI_CH24,
PPI_CH25,
PPI_CH26,
PPI_CH27,
PPI_CH28,
PPI_CH29,
PPI_CH30,
PPI_CH31,
PPI_GROUP0,
PPI_GROUP1,
PPI_GROUP2,
PPI_GROUP3,
PPI_GROUP4,
PPI_GROUP5,
// GPIO port 0
P0_00,
P0_01,
P0_02,
P0_03,
P0_04,
P0_05,
P0_06,
P0_07,
P0_08,
P0_09,
P0_10,
P0_11,
P0_12,
P0_13,
P0_14,
P0_15,
P0_16,
P0_17,
P0_18,
P0_19,
P0_20,
P0_21,
P0_22,
P0_23,
P0_24,
P0_25,
P0_26,
P0_27,
P0_28,
P0_29,
P0_30,
P0_31,
// GPIO port 1
P1_00,
P1_01,
P1_02,
P1_03,
P1_04,
P1_05,
P1_06,
P1_07,
P1_08,
P1_09,
P1_10,
P1_11,
P1_12,
P1_13,
P1_14,
P1_15,
}
impl_uarte!(UARTE0, UARTE0, UARTE0_UART0);
impl_uarte!(UARTE1, UARTE1, UARTE1);
impl_spim!(TWISPI0, SPIM0, SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
impl_spim!(TWISPI1, SPIM1, SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
impl_spim!(SPI2, SPIM2, SPIM2_SPIS2_SPI2);
impl_spim!(SPI3, SPIM3, SPIM3);
impl_twim!(TWISPI0, TWIM0, SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
impl_twim!(TWISPI1, TWIM1, SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
impl_pwm!(PWM0, PWM0, PWM0);
impl_pwm!(PWM1, PWM1, PWM1);
impl_pwm!(PWM2, PWM2, PWM2);
impl_pwm!(PWM3, PWM3, PWM3);
impl_timer!(TIMER0, TIMER0, TIMER0);
impl_timer!(TIMER1, TIMER1, TIMER1);
impl_timer!(TIMER2, TIMER2, TIMER2);
impl_timer!(TIMER3, TIMER3, TIMER3, extended);
impl_timer!(TIMER4, TIMER4, TIMER4, extended);
impl_pin!(P0_00, 0, 0);
impl_pin!(P0_01, 0, 1);
impl_pin!(P0_02, 0, 2);
impl_pin!(P0_03, 0, 3);
impl_pin!(P0_04, 0, 4);
impl_pin!(P0_05, 0, 5);
impl_pin!(P0_06, 0, 6);
impl_pin!(P0_07, 0, 7);
impl_pin!(P0_08, 0, 8);
impl_pin!(P0_09, 0, 9);
impl_pin!(P0_10, 0, 10);
impl_pin!(P0_11, 0, 11);
impl_pin!(P0_12, 0, 12);
impl_pin!(P0_13, 0, 13);
impl_pin!(P0_14, 0, 14);
impl_pin!(P0_15, 0, 15);
impl_pin!(P0_16, 0, 16);
impl_pin!(P0_17, 0, 17);
impl_pin!(P0_18, 0, 18);
impl_pin!(P0_19, 0, 19);
impl_pin!(P0_20, 0, 20);
impl_pin!(P0_21, 0, 21);
impl_pin!(P0_22, 0, 22);
impl_pin!(P0_23, 0, 23);
impl_pin!(P0_24, 0, 24);
impl_pin!(P0_25, 0, 25);
impl_pin!(P0_26, 0, 26);
impl_pin!(P0_27, 0, 27);
impl_pin!(P0_28, 0, 28);
impl_pin!(P0_29, 0, 29);
impl_pin!(P0_30, 0, 30);
impl_pin!(P0_31, 0, 31);
impl_pin!(P1_00, 1, 0);
impl_pin!(P1_01, 1, 1);
impl_pin!(P1_02, 1, 2);
impl_pin!(P1_03, 1, 3);
impl_pin!(P1_04, 1, 4);
impl_pin!(P1_05, 1, 5);
impl_pin!(P1_06, 1, 6);
impl_pin!(P1_07, 1, 7);
impl_pin!(P1_08, 1, 8);
impl_pin!(P1_09, 1, 9);
impl_pin!(P1_10, 1, 10);
impl_pin!(P1_11, 1, 11);
impl_pin!(P1_12, 1, 12);
impl_pin!(P1_13, 1, 13);
impl_pin!(P1_14, 1, 14);
impl_pin!(P1_15, 1, 15);
pub mod irqs {
use embassy_macros::interrupt_declare as declare;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
declare!(SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
declare!(NFCT);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP_LPCOMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2_EGU2);
declare!(SWI3_EGU3);
declare!(SWI4_EGU4);
declare!(SWI5_EGU5);
declare!(TIMER3);
declare!(TIMER4);
declare!(PWM0);
declare!(PDM);
declare!(MWU);
declare!(PWM1);
declare!(PWM2);
declare!(SPIM2_SPIS2_SPI2);
declare!(RTC2);
declare!(I2S);
declare!(FPU);
declare!(USBD);
declare!(UARTE1);
declare!(PWM3);
declare!(SPIM3);
}

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embassy-nrf/src/chips/nrf52840.rs Normal file
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pub use nrf52840_pac as pac;
pub const EASY_DMA_SIZE: usize = (1 << 16) - 1;
pub const FORCE_COPY_BUFFER_SIZE: usize = 512;
embassy_extras::peripherals! {
// RTC
RTC0,
RTC1,
RTC2,
// QSPI
QSPI,
// UARTE
UARTE0,
UARTE1,
// SPI/TWI
TWISPI0,
TWISPI1,
SPI2,
SPI3,
// SAADC
SAADC,
// PWM
PWM0,
PWM1,
PWM2,
PWM3,
// TIMER
TIMER0,
TIMER1,
TIMER2,
TIMER3,
TIMER4,
// GPIOTE
GPIOTE_CH0,
GPIOTE_CH1,
GPIOTE_CH2,
GPIOTE_CH3,
GPIOTE_CH4,
GPIOTE_CH5,
GPIOTE_CH6,
GPIOTE_CH7,
// PPI
PPI_CH0,
PPI_CH1,
PPI_CH2,
PPI_CH3,
PPI_CH4,
PPI_CH5,
PPI_CH6,
PPI_CH7,
PPI_CH8,
PPI_CH9,
PPI_CH10,
PPI_CH11,
PPI_CH12,
PPI_CH13,
PPI_CH14,
PPI_CH15,
PPI_CH16,
PPI_CH17,
PPI_CH18,
PPI_CH19,
PPI_CH20,
PPI_CH21,
PPI_CH22,
PPI_CH23,
PPI_CH24,
PPI_CH25,
PPI_CH26,
PPI_CH27,
PPI_CH28,
PPI_CH29,
PPI_CH30,
PPI_CH31,
PPI_GROUP0,
PPI_GROUP1,
PPI_GROUP2,
PPI_GROUP3,
PPI_GROUP4,
PPI_GROUP5,
// GPIO port 0
P0_00,
P0_01,
P0_02,
P0_03,
P0_04,
P0_05,
P0_06,
P0_07,
P0_08,
P0_09,
P0_10,
P0_11,
P0_12,
P0_13,
P0_14,
P0_15,
P0_16,
P0_17,
P0_18,
P0_19,
P0_20,
P0_21,
P0_22,
P0_23,
P0_24,
P0_25,
P0_26,
P0_27,
P0_28,
P0_29,
P0_30,
P0_31,
// GPIO port 1
P1_00,
P1_01,
P1_02,
P1_03,
P1_04,
P1_05,
P1_06,
P1_07,
P1_08,
P1_09,
P1_10,
P1_11,
P1_12,
P1_13,
P1_14,
P1_15,
}
impl_uarte!(UARTE0, UARTE0, UARTE0_UART0);
impl_uarte!(UARTE1, UARTE1, UARTE1);
impl_spim!(TWISPI0, SPIM0, SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
impl_spim!(TWISPI1, SPIM1, SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
impl_spim!(SPI2, SPIM2, SPIM2_SPIS2_SPI2);
impl_spim!(SPI3, SPIM3, SPIM3);
impl_twim!(TWISPI0, TWIM0, SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
impl_twim!(TWISPI1, TWIM1, SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
impl_pwm!(PWM0, PWM0, PWM0);
impl_pwm!(PWM1, PWM1, PWM1);
impl_pwm!(PWM2, PWM2, PWM2);
impl_pwm!(PWM3, PWM3, PWM3);
impl_timer!(TIMER0, TIMER0, TIMER0);
impl_timer!(TIMER1, TIMER1, TIMER1);
impl_timer!(TIMER2, TIMER2, TIMER2);
impl_timer!(TIMER3, TIMER3, TIMER3, extended);
impl_timer!(TIMER4, TIMER4, TIMER4, extended);
impl_qspi!(QSPI, QSPI, QSPI);
impl_pin!(P0_00, 0, 0);
impl_pin!(P0_01, 0, 1);
impl_pin!(P0_02, 0, 2);
impl_pin!(P0_03, 0, 3);
impl_pin!(P0_04, 0, 4);
impl_pin!(P0_05, 0, 5);
impl_pin!(P0_06, 0, 6);
impl_pin!(P0_07, 0, 7);
impl_pin!(P0_08, 0, 8);
impl_pin!(P0_09, 0, 9);
impl_pin!(P0_10, 0, 10);
impl_pin!(P0_11, 0, 11);
impl_pin!(P0_12, 0, 12);
impl_pin!(P0_13, 0, 13);
impl_pin!(P0_14, 0, 14);
impl_pin!(P0_15, 0, 15);
impl_pin!(P0_16, 0, 16);
impl_pin!(P0_17, 0, 17);
impl_pin!(P0_18, 0, 18);
impl_pin!(P0_19, 0, 19);
impl_pin!(P0_20, 0, 20);
impl_pin!(P0_21, 0, 21);
impl_pin!(P0_22, 0, 22);
impl_pin!(P0_23, 0, 23);
impl_pin!(P0_24, 0, 24);
impl_pin!(P0_25, 0, 25);
impl_pin!(P0_26, 0, 26);
impl_pin!(P0_27, 0, 27);
impl_pin!(P0_28, 0, 28);
impl_pin!(P0_29, 0, 29);
impl_pin!(P0_30, 0, 30);
impl_pin!(P0_31, 0, 31);
impl_pin!(P1_00, 1, 0);
impl_pin!(P1_01, 1, 1);
impl_pin!(P1_02, 1, 2);
impl_pin!(P1_03, 1, 3);
impl_pin!(P1_04, 1, 4);
impl_pin!(P1_05, 1, 5);
impl_pin!(P1_06, 1, 6);
impl_pin!(P1_07, 1, 7);
impl_pin!(P1_08, 1, 8);
impl_pin!(P1_09, 1, 9);
impl_pin!(P1_10, 1, 10);
impl_pin!(P1_11, 1, 11);
impl_pin!(P1_12, 1, 12);
impl_pin!(P1_13, 1, 13);
impl_pin!(P1_14, 1, 14);
impl_pin!(P1_15, 1, 15);
pub mod irqs {
use embassy_macros::interrupt_declare as declare;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
declare!(SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
declare!(NFCT);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP_LPCOMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2_EGU2);
declare!(SWI3_EGU3);
declare!(SWI4_EGU4);
declare!(SWI5_EGU5);
declare!(TIMER3);
declare!(TIMER4);
declare!(PWM0);
declare!(PDM);
declare!(MWU);
declare!(PWM1);
declare!(PWM2);
declare!(SPIM2_SPIS2_SPI2);
declare!(RTC2);
declare!(I2S);
declare!(FPU);
declare!(USBD);
declare!(UARTE1);
declare!(QSPI);
declare!(CRYPTOCELL);
declare!(PWM3);
declare!(SPIM3);
}

74
embassy-nrf/src/gpio.rs
View File

@@ -1,3 +1,5 @@
#![macro_use]
use core::convert::Infallible;
use core::hint::unreachable_unchecked;
use core::marker::PhantomData;
@@ -18,7 +20,7 @@ pub enum Port {
Port0,
/// Port 1, only available on some nRF52 MCUs.
#[cfg(any(feature = "52833", feature = "52840"))]
#[cfg(any(feature = "nrf52833", feature = "nrf52840"))]
Port1,
}
@@ -281,12 +283,12 @@ pub(crate) mod sealed {
#[inline]
fn _pin(&self) -> u8 {
#[cfg(any(feature = "52833", feature = "52840"))]
#[cfg(any(feature = "nrf52833", feature = "nrf52840"))]
{
self.pin_port() % 32
}
#[cfg(not(any(feature = "52833", feature = "52840")))]
#[cfg(not(any(feature = "nrf52833", feature = "nrf52840")))]
{
self.pin_port()
}
@@ -297,7 +299,7 @@ pub(crate) mod sealed {
unsafe {
match self.pin_port() / 32 {
0 => &*pac::P0::ptr(),
#[cfg(any(feature = "52833", feature = "52840"))]
#[cfg(any(feature = "nrf52833", feature = "nrf52840"))]
1 => &*pac::P1::ptr(),
_ => unreachable_unchecked(),
}
@@ -329,7 +331,7 @@ pub(crate) mod sealed {
pub trait OptionalPin {}
}
pub trait Pin: sealed::Pin + Sized {
pub trait Pin: Unborrow<Target = Self> + sealed::Pin + Sized {
/// Number of the pin within the port (0..31)
#[inline]
fn pin(&self) -> u8 {
@@ -341,7 +343,7 @@ pub trait Pin: sealed::Pin + Sized {
fn port(&self) -> Port {
match self.pin_port() / 32 {
0 => Port::Port0,
#[cfg(any(feature = "52833", feature = "52840"))]
#[cfg(any(feature = "nrf52833", feature = "nrf52840"))]
1 => Port::Port1,
_ => unsafe { unreachable_unchecked() },
}
@@ -433,7 +435,7 @@ fn init_output<T: Pin>(pin: &T, drive: OutputDrive) {
// ====================
pub trait OptionalPin: sealed::OptionalPin + Sized {
pub trait OptionalPin: Unborrow<Target = Self> + sealed::OptionalPin + Sized {
type Pin: Pin;
fn pin(&self) -> Option<&Self::Pin>;
fn pin_mut(&mut self) -> Option<&mut Self::Pin>;
@@ -488,8 +490,8 @@ impl OptionalPin for NoPin {
macro_rules! impl_pin {
($type:ident, $port_num:expr, $pin_num:expr) => {
impl Pin for peripherals::$type {}
impl sealed::Pin for peripherals::$type {
impl crate::gpio::Pin for peripherals::$type {}
impl crate::gpio::sealed::Pin for peripherals::$type {
#[inline]
fn pin_port(&self) -> u8 {
$port_num * 32 + $pin_num
@@ -497,57 +499,3 @@ macro_rules! impl_pin {
}
};
}
impl_pin!(P0_00, 0, 0);
impl_pin!(P0_01, 0, 1);
impl_pin!(P0_02, 0, 2);
impl_pin!(P0_03, 0, 3);
impl_pin!(P0_04, 0, 4);
impl_pin!(P0_05, 0, 5);
impl_pin!(P0_06, 0, 6);
impl_pin!(P0_07, 0, 7);
impl_pin!(P0_08, 0, 8);
impl_pin!(P0_09, 0, 9);
impl_pin!(P0_10, 0, 10);
impl_pin!(P0_11, 0, 11);
impl_pin!(P0_12, 0, 12);
impl_pin!(P0_13, 0, 13);
impl_pin!(P0_14, 0, 14);
impl_pin!(P0_15, 0, 15);
impl_pin!(P0_16, 0, 16);
impl_pin!(P0_17, 0, 17);
impl_pin!(P0_18, 0, 18);
impl_pin!(P0_19, 0, 19);
impl_pin!(P0_20, 0, 20);
impl_pin!(P0_21, 0, 21);
impl_pin!(P0_22, 0, 22);
impl_pin!(P0_23, 0, 23);
impl_pin!(P0_24, 0, 24);
impl_pin!(P0_25, 0, 25);
impl_pin!(P0_26, 0, 26);
impl_pin!(P0_27, 0, 27);
impl_pin!(P0_28, 0, 28);
impl_pin!(P0_29, 0, 29);
impl_pin!(P0_30, 0, 30);
impl_pin!(P0_31, 0, 31);
#[cfg(any(feature = "52833", feature = "52840"))]
mod _p1 {
use super::*;
impl_pin!(P1_00, 1, 0);
impl_pin!(P1_01, 1, 1);
impl_pin!(P1_02, 1, 2);
impl_pin!(P1_03, 1, 3);
impl_pin!(P1_04, 1, 4);
impl_pin!(P1_05, 1, 5);
impl_pin!(P1_06, 1, 6);
impl_pin!(P1_07, 1, 7);
impl_pin!(P1_08, 1, 8);
impl_pin!(P1_09, 1, 9);
impl_pin!(P1_10, 1, 10);
impl_pin!(P1_11, 1, 11);
impl_pin!(P1_12, 1, 12);
impl_pin!(P1_13, 1, 13);
impl_pin!(P1_14, 1, 14);
impl_pin!(P1_15, 1, 15);
}

57
embassy-nrf/src/gpiote.rs
View File

@@ -2,7 +2,7 @@ use core::convert::Infallible;
use core::future::Future;
use core::marker::PhantomData;
use core::task::{Context, Poll};
use embassy::interrupt::InterruptExt;
use embassy::interrupt::{Interrupt, InterruptExt};
use embassy::traits::gpio::{WaitForAnyEdge, WaitForHigh, WaitForLow};
use embassy::util::AtomicWaker;
use embassy_extras::impl_unborrow;
@@ -17,9 +17,9 @@ use crate::{interrupt, peripherals};
pub const CHANNEL_COUNT: usize = 8;
#[cfg(any(feature = "52833", feature = "52840"))]
#[cfg(any(feature = "nrf52833", feature = "nrf52840"))]
pub const PIN_COUNT: usize = 48;
#[cfg(not(any(feature = "52833", feature = "52840")))]
#[cfg(not(any(feature = "nrf52833", feature = "nrf52840")))]
pub const PIN_COUNT: usize = 32;
const NEW_AW: AtomicWaker = AtomicWaker::new();
@@ -40,18 +40,10 @@ pub enum OutputChannelPolarity {
Toggle,
}
/// Token indicating GPIOTE has been correctly initialized.
///
/// This is not an owned singleton, it is Copy. Drivers that make use of GPIOTE require it.
#[derive(Clone, Copy)]
pub struct Initialized {
_private: (),
}
pub fn initialize(_gpiote: peripherals::GPIOTE, irq: interrupt::GPIOTE) -> Initialized {
#[cfg(any(feature = "52833", feature = "52840"))]
pub(crate) fn init() {
#[cfg(any(feature = "nrf52833", feature = "nrf52840"))]
let ports = unsafe { &[&*pac::P0::ptr(), &*pac::P1::ptr()] };
#[cfg(not(any(feature = "52833", feature = "52840")))]
#[cfg(not(any(feature = "nrf52833", feature = "nrf52840")))]
let ports = unsafe { &[&*pac::P0::ptr()] };
for &p in ports {
@@ -62,17 +54,18 @@ pub fn initialize(_gpiote: peripherals::GPIOTE, irq: interrupt::GPIOTE) -> Initi
}
// Enable interrupts
let g = unsafe { &*pac::GPIOTE::ptr() };
g.events_port.write(|w| w);
g.intenset.write(|w| w.port().set());
irq.set_handler(on_irq);
let irq = unsafe { interrupt::GPIOTE::steal() };
irq.unpend();
irq.enable();
Initialized { _private: () }
let g = unsafe { &*pac::GPIOTE::ptr() };
g.events_port.write(|w| w);
g.intenset.write(|w| w.port().set());
}
unsafe fn on_irq(_ctx: *mut ()) {
#[interrupt]
unsafe fn GPIOTE() {
let g = &*pac::GPIOTE::ptr();
for i in 0..CHANNEL_COUNT {
@@ -85,9 +78,9 @@ unsafe fn on_irq(_ctx: *mut ()) {
if g.events_port.read().bits() != 0 {
g.events_port.write(|w| w);
#[cfg(any(feature = "52833", feature = "52840"))]
#[cfg(any(feature = "nrf52833", feature = "nrf52840"))]
let ports = &[&*pac::P0::ptr(), &*pac::P1::ptr()];
#[cfg(not(any(feature = "52833", feature = "52840")))]
#[cfg(not(any(feature = "nrf52833", feature = "nrf52840")))]
let ports = &[&*pac::P0::ptr()];
for (port, &p) in ports.iter().enumerate() {
@@ -133,12 +126,7 @@ impl<'d, C: Channel, T: GpioPin> Drop for InputChannel<'d, C, T> {
}
impl<'d, C: Channel, T: GpioPin> InputChannel<'d, C, T> {
pub fn new(
_init: Initialized,
ch: C,
pin: Input<'d, T>,
polarity: InputChannelPolarity,
) -> Self {
pub fn new(ch: C, pin: Input<'d, T>, polarity: InputChannelPolarity) -> Self {
let g = unsafe { &*pac::GPIOTE::ptr() };
let num = ch.number();
@@ -149,7 +137,7 @@ impl<'d, C: Channel, T: GpioPin> InputChannel<'d, C, T> {
InputChannelPolarity::None => w.mode().event().polarity().none(),
InputChannelPolarity::Toggle => w.mode().event().polarity().toggle(),
};
#[cfg(any(feature = "52833", feature = "52840"))]
#[cfg(any(feature = "nrf52833", feature = "nrf52840"))]
w.port().bit(match pin.pin.port() {
Port::Port0 => false,
Port::Port1 => true,
@@ -217,12 +205,7 @@ impl<'d, C: Channel, T: GpioPin> Drop for OutputChannel<'d, C, T> {
}
impl<'d, C: Channel, T: GpioPin> OutputChannel<'d, C, T> {
pub fn new(
_init: Initialized,
ch: C,
pin: Output<'d, T>,
polarity: OutputChannelPolarity,
) -> Self {
pub fn new(ch: C, pin: Output<'d, T>, polarity: OutputChannelPolarity) -> Self {
let g = unsafe { &*pac::GPIOTE::ptr() };
let num = ch.number();
@@ -237,7 +220,7 @@ impl<'d, C: Channel, T: GpioPin> OutputChannel<'d, C, T> {
OutputChannelPolarity::Clear => w.polarity().hi_to_lo(),
OutputChannelPolarity::Toggle => w.polarity().toggle(),
};
#[cfg(any(feature = "52833", feature = "52840"))]
#[cfg(any(feature = "nrf52833", feature = "nrf52840"))]
w.port().bit(match pin.pin.port() {
Port::Port0 => false,
Port::Port1 => true,
@@ -297,7 +280,7 @@ pub struct PortInput<'d, T: GpioPin> {
impl<'d, T: GpioPin> Unpin for PortInput<'d, T> {}
impl<'d, T: GpioPin> PortInput<'d, T> {
pub fn new(_init: Initialized, pin: Input<'d, T>) -> Self {
pub fn new(pin: Input<'d, T>) -> Self {
Self { pin }
}
}

210
embassy-nrf/src/interrupt.rs
View File

@@ -1,210 +0,0 @@
//! Interrupt management
//!
//! This module implements an API for managing interrupts compatible with
//! nrf_softdevice::interrupt. Intended for switching between the two at compile-time.
// Re-exports
pub use embassy::interrupt::{declare, take, Interrupt};
pub use embassy_extras::interrupt::Priority3 as Priority;
#[cfg(feature = "52810")]
mod irqs {
use super::*;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(TWIM0_TWIS0_TWI0);
declare!(SPIM0_SPIS0_SPI0);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2);
declare!(SWI3);
declare!(SWI4);
declare!(SWI5);
declare!(PWM0);
declare!(PDM);
}
#[cfg(feature = "52811")]
mod irqs {
use super::*;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(TWIM0_TWIS0_TWI0_SPIM1_SPIS1_SPI1);
declare!(SPIM0_SPIS0_SPI0);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2);
declare!(SWI3);
declare!(SWI4);
declare!(SWI5);
declare!(PWM0);
declare!(PDM);
}
#[cfg(feature = "52832")]
mod irqs {
use super::*;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
declare!(SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
declare!(NFCT);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP_LPCOMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2_EGU2);
declare!(SWI3_EGU3);
declare!(SWI4_EGU4);
declare!(SWI5_EGU5);
declare!(TIMER3);
declare!(TIMER4);
declare!(PWM0);
declare!(PDM);
declare!(MWU);
declare!(PWM1);
declare!(PWM2);
declare!(SPIM2_SPIS2_SPI2);
declare!(RTC2);
declare!(I2S);
declare!(FPU);
}
#[cfg(feature = "52833")]
mod irqs {
use super::*;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
declare!(SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
declare!(NFCT);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP_LPCOMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2_EGU2);
declare!(SWI3_EGU3);
declare!(SWI4_EGU4);
declare!(SWI5_EGU5);
declare!(TIMER3);
declare!(TIMER4);
declare!(PWM0);
declare!(PDM);
declare!(MWU);
declare!(PWM1);
declare!(PWM2);
declare!(SPIM2_SPIS2_SPI2);
declare!(RTC2);
declare!(I2S);
declare!(FPU);
declare!(USBD);
declare!(UARTE1);
declare!(PWM3);
declare!(SPIM3);
}
#[cfg(feature = "52840")]
mod irqs {
use super::*;
declare!(POWER_CLOCK);
declare!(RADIO);
declare!(UARTE0_UART0);
declare!(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
declare!(SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
declare!(NFCT);
declare!(GPIOTE);
declare!(SAADC);
declare!(TIMER0);
declare!(TIMER1);
declare!(TIMER2);
declare!(RTC0);
declare!(TEMP);
declare!(RNG);
declare!(ECB);
declare!(CCM_AAR);
declare!(WDT);
declare!(RTC1);
declare!(QDEC);
declare!(COMP_LPCOMP);
declare!(SWI0_EGU0);
declare!(SWI1_EGU1);
declare!(SWI2_EGU2);
declare!(SWI3_EGU3);
declare!(SWI4_EGU4);
declare!(SWI5_EGU5);
declare!(TIMER3);
declare!(TIMER4);
declare!(PWM0);
declare!(PDM);
declare!(MWU);
declare!(PWM1);
declare!(PWM2);
declare!(SPIM2_SPIS2_SPI2);
declare!(RTC2);
declare!(I2S);
declare!(FPU);
declare!(USBD);
declare!(UARTE1);
declare!(QSPI);
declare!(CRYPTOCELL);
declare!(PWM3);
declare!(SPIM3);
}
pub use irqs::*;

368
embassy-nrf/src/lib.rs
View File

@@ -7,257 +7,155 @@
#![allow(incomplete_features)]
#[cfg(not(any(
feature = "52810",
feature = "52811",
feature = "52832",
feature = "52833",
feature = "52840",
feature = "nrf51",
feature = "nrf52805",
feature = "nrf52810",
feature = "nrf52811",
feature = "nrf52820",
feature = "nrf52832",
feature = "nrf52833",
feature = "nrf52840",
feature = "nrf5340-app",
feature = "nrf5340-net",
feature = "nrf9160",
)))]
compile_error!("No chip feature activated. You must activate exactly one of the following features: 52810, 52811, 52832, 52833, 52840");
#[cfg(any(
all(feature = "52810", feature = "52811"),
all(feature = "52810", feature = "52832"),
all(feature = "52810", feature = "52833"),
all(feature = "52810", feature = "52840"),
all(feature = "52811", feature = "52832"),
all(feature = "52811", feature = "52833"),
all(feature = "52811", feature = "52840"),
all(feature = "52832", feature = "52833"),
all(feature = "52832", feature = "52840"),
all(feature = "52833", feature = "52840"),
))]
compile_error!("Multile chip features activated. You must activate exactly one of the following features: 52810, 52811, 52832, 52833, 52840");
#[cfg(feature = "52810")]
pub use nrf52810_pac as pac;
#[cfg(feature = "52811")]
pub use nrf52811_pac as pac;
#[cfg(feature = "52832")]
pub use nrf52832_pac as pac;
#[cfg(feature = "52833")]
pub use nrf52833_pac as pac;
#[cfg(feature = "52840")]
pub use nrf52840_pac as pac;
/// Length of Nordic EasyDMA differs for MCUs
#[cfg(any(
feature = "52810",
feature = "52811",
feature = "52832",
feature = "51"
))]
pub mod target_constants {
// NRF52832 8 bits1..0xFF
pub const EASY_DMA_SIZE: usize = 255;
// Easy DMA can only read from data ram
pub const SRAM_LOWER: usize = 0x2000_0000;
pub const SRAM_UPPER: usize = 0x3000_0000;
}
#[cfg(any(feature = "52840", feature = "52833", feature = "9160"))]
pub mod target_constants {
// NRF52840 and NRF9160 16 bits 1..0xFFFF
pub const EASY_DMA_SIZE: usize = 65535;
// Limits for Easy DMA - it can only read from data ram
pub const SRAM_LOWER: usize = 0x2000_0000;
pub const SRAM_UPPER: usize = 0x3000_0000;
}
/// Does this slice reside entirely within RAM?
pub(crate) fn slice_in_ram(slice: &[u8]) -> bool {
let ptr = slice.as_ptr() as usize;
ptr >= target_constants::SRAM_LOWER && (ptr + slice.len()) < target_constants::SRAM_UPPER
}
/// Return an error if slice is not in RAM.
#[cfg(not(feature = "51"))]
pub(crate) fn slice_in_ram_or<T>(slice: &[u8], err: T) -> Result<(), T> {
if slice.len() == 0 || slice_in_ram(slice) {
Ok(())
} else {
Err(err)
}
}
compile_error!("No chip feature activated. You must activate exactly one of the following features: nrf52810, nrf52811, nrf52832, nrf52833, nrf52840");
// This mod MUST go first, so that the others see its macros.
pub(crate) mod fmt;
pub(crate) mod util;
pub mod buffered_uarte;
pub mod gpio;
pub mod gpiote;
pub mod interrupt;
pub mod ppi;
#[cfg(feature = "52840")]
#[cfg(not(any(feature = "nrf52805", feature = "nrf52820")))]
pub mod pwm;
#[cfg(feature = "nrf52840")]
pub mod qspi;
pub mod rtc;
#[cfg(not(feature = "nrf52820"))]
pub mod saadc;
pub mod spim;
pub mod system;
pub mod timer;
pub mod twim;
pub mod uarte;
embassy_extras::peripherals! {
// RTC
RTC0,
RTC1,
#[cfg(any(feature = "52832", feature = "52833", feature = "52840"))]
RTC2,
// This mod MUST go last, so that it sees all the `impl_foo!` macros
#[cfg(feature = "nrf52805")]
#[path = "chips/nrf52805.rs"]
mod chip;
#[cfg(feature = "nrf52810")]
#[path = "chips/nrf52810.rs"]
mod chip;
#[cfg(feature = "nrf52811")]
#[path = "chips/nrf52811.rs"]
mod chip;
#[cfg(feature = "nrf52820")]
#[path = "chips/nrf52820.rs"]
mod chip;
#[cfg(feature = "nrf52832")]
#[path = "chips/nrf52832.rs"]
mod chip;
#[cfg(feature = "nrf52833")]
#[path = "chips/nrf52833.rs"]
mod chip;
#[cfg(feature = "nrf52840")]
#[path = "chips/nrf52840.rs"]
mod chip;
// QSPI
#[cfg(feature = "52840")]
QSPI,
pub(crate) use chip::pac;
pub use chip::{peripherals, Peripherals};
// UARTE
UARTE0,
#[cfg(any(feature = "52833", feature = "52840", feature = "9160"))]
UARTE1,
// SPIM
// TODO this is actually shared with SPI, SPIM, SPIS, TWI, TWIS, TWIS.
// When they're all implemented, they should be only one peripheral here.
SPIM0,
#[cfg(any(feature = "52832", feature = "52833", feature = "52840"))]
SPIM1,
#[cfg(any(feature = "52832", feature = "52833", feature = "52840"))]
SPIM2,
#[cfg(any(feature = "52833", feature = "52840"))]
SPIM3,
// SAADC
SAADC,
// TIMER
TIMER0,
TIMER1,
TIMER2,
#[cfg(any(feature = "52832", feature = "52833", feature = "52840"))]
TIMER3,
#[cfg(any(feature = "52832", feature = "52833", feature = "52840"))]
TIMER4,
// GPIOTE
GPIOTE,
GPIOTE_CH0,
GPIOTE_CH1,
GPIOTE_CH2,
GPIOTE_CH3,
GPIOTE_CH4,
GPIOTE_CH5,
GPIOTE_CH6,
GPIOTE_CH7,
// PPI
PPI_CH0,
PPI_CH1,
PPI_CH2,
PPI_CH3,
PPI_CH4,
PPI_CH5,
PPI_CH6,
PPI_CH7,
PPI_CH8,
PPI_CH9,
PPI_CH10,
PPI_CH11,
PPI_CH12,
PPI_CH13,
PPI_CH14,
PPI_CH15,
#[cfg(not(feature = "51"))]
PPI_CH16,
#[cfg(not(feature = "51"))]
PPI_CH17,
#[cfg(not(feature = "51"))]
PPI_CH18,
#[cfg(not(feature = "51"))]
PPI_CH19,
PPI_CH20,
PPI_CH21,
PPI_CH22,
PPI_CH23,
PPI_CH24,
PPI_CH25,
PPI_CH26,
PPI_CH27,
PPI_CH28,
PPI_CH29,
PPI_CH30,
PPI_CH31,
PPI_GROUP0,
PPI_GROUP1,
PPI_GROUP2,
PPI_GROUP3,
#[cfg(not(feature = "51"))]
PPI_GROUP4,
#[cfg(not(feature = "51"))]
PPI_GROUP5,
// GPIO port 0
P0_00,
P0_01,
P0_02,
P0_03,
P0_04,
P0_05,
P0_06,
P0_07,
P0_08,
P0_09,
P0_10,
P0_11,
P0_12,
P0_13,
P0_14,
P0_15,
P0_16,
P0_17,
P0_18,
P0_19,
P0_20,
P0_21,
P0_22,
P0_23,
P0_24,
P0_25,
P0_26,
P0_27,
P0_28,
P0_29,
P0_30,
P0_31,
// GPIO port 1
#[cfg(any(feature = "52833", feature = "52840"))]
P1_00,
#[cfg(any(feature = "52833", feature = "52840"))]
P1_01,
#[cfg(any(feature = "52833", feature = "52840"))]
P1_02,
#[cfg(any(feature = "52833", feature = "52840"))]
P1_03,
#[cfg(any(feature = "52833", feature = "52840"))]
P1_04,
#[cfg(any(feature = "52833", feature = "52840"))]
P1_05,
#[cfg(any(feature = "52833", feature = "52840"))]
P1_06,
#[cfg(any(feature = "52833", feature = "52840"))]
P1_07,
#[cfg(any(feature = "52833", feature = "52840"))]
P1_08,
#[cfg(any(feature = "52833", feature = "52840"))]
P1_09,
#[cfg(any(feature = "52833", feature = "52840"))]
P1_10,
#[cfg(any(feature = "52833", feature = "52840"))]
P1_11,
#[cfg(any(feature = "52833", feature = "52840"))]
P1_12,
#[cfg(any(feature = "52833", feature = "52840"))]
P1_13,
#[cfg(any(feature = "52833", feature = "52840"))]
P1_14,
#[cfg(any(feature = "52833", feature = "52840"))]
P1_15,
pub mod interrupt {
pub use crate::chip::irqs::*;
pub use cortex_m::interrupt::{CriticalSection, Mutex};
pub use embassy::interrupt::{declare, take, Interrupt};
pub use embassy_extras::interrupt::Priority3 as Priority;
}
pub use embassy_macros::interrupt;
pub mod config {
pub enum HfclkSource {
Internal,
ExternalXtal,
}
pub enum LfclkSource {
InternalRC,
Synthesized,
ExternalXtal,
ExternalLowSwing,
ExternalFullSwing,
}
#[non_exhaustive]
pub struct Config {
pub hfclk_source: HfclkSource,
pub lfclk_source: LfclkSource,
}
impl Default for Config {
fn default() -> Self {
Self {
// There are hobby nrf52 boards out there without external XTALs...
// Default everything to internal so it Just Works. User can enable external
// xtals if they know they have them.
hfclk_source: HfclkSource::Internal,
lfclk_source: LfclkSource::InternalRC,
}
}
}
}
pub fn init(config: config::Config) -> Peripherals {
// Do this first, so that it panics if user is calling `init` a second time
// before doing anything important.
let peripherals = Peripherals::take();
let r = unsafe { &*pac::CLOCK::ptr() };
// Start HFCLK.
match config.hfclk_source {
config::HfclkSource::Internal => {}
config::HfclkSource::ExternalXtal => {
// Datasheet says this is likely to take 0.36ms
r.events_hfclkstarted.write(|w| unsafe { w.bits(0) });
r.tasks_hfclkstart.write(|w| unsafe { w.bits(1) });
while r.events_hfclkstarted.read().bits() == 0 {}
}
}
// Configure LFCLK.
match config.lfclk_source {
config::LfclkSource::InternalRC => r.lfclksrc.write(|w| w.src().rc()),
config::LfclkSource::Synthesized => r.lfclksrc.write(|w| w.src().synth()),
config::LfclkSource::ExternalXtal => r.lfclksrc.write(|w| w.src().xtal()),
config::LfclkSource::ExternalLowSwing => r.lfclksrc.write(|w| {
w.src().xtal();
w.external().enabled();
w.bypass().disabled();
w
}),
config::LfclkSource::ExternalFullSwing => r.lfclksrc.write(|w| {
w.src().xtal();
w.external().enabled();
w.bypass().enabled();
w
}),
}
// Start LFCLK.
// Datasheet says this could take 100us from synth source
// 600us from rc source, 0.25s from an external source.
r.events_lfclkstarted.write(|w| unsafe { w.bits(0) });
r.tasks_lfclkstart.write(|w| unsafe { w.bits(1) });
while r.events_lfclkstarted.read().bits() == 0 {}
// Init GPIOTE
crate::gpiote::init();
peripherals
}

233
embassy-nrf/src/pwm.rs Normal file
View File

@@ -0,0 +1,233 @@
#![macro_use]
use core::cell::UnsafeCell;
use core::marker::PhantomData;
use core::sync::atomic::{compiler_fence, Ordering};
use embassy::util::Unborrow;
use embassy_extras::unborrow;
use crate::fmt::{assert, panic, unreachable, *};
use crate::gpio::sealed::Pin as _;
use crate::gpio::OptionalPin as GpioOptionalPin;
use crate::interrupt::Interrupt;
use crate::pac;
#[derive(Debug, Eq, PartialEq, Clone, Copy)]
pub enum Prescaler {
Div1,
Div2,
Div4,
Div8,
Div16,
Div32,
Div64,
Div128,
}
/// Interface to the UARTE peripheral
pub struct Pwm<'d, T: Instance> {
peri: T,
phantom: PhantomData<&'d mut T>,
}
impl<'d, T: Instance> Pwm<'d, T> {
/// Creates the interface to a UARTE instance.
/// Sets the baud rate, parity and assigns the pins to the UARTE peripheral.
///
/// # Safety
///
/// The returned API is safe unless you use `mem::forget` (or similar safe mechanisms)
/// on stack allocated buffers which which have been passed to [`send()`](Pwm::send)
/// or [`receive`](Pwm::receive).
#[allow(unused_unsafe)]
pub fn new(
pwm: impl Unborrow<Target = T> + 'd,
ch0: impl Unborrow<Target = impl GpioOptionalPin> + 'd,
ch1: impl Unborrow<Target = impl GpioOptionalPin> + 'd,
ch2: impl Unborrow<Target = impl GpioOptionalPin> + 'd,
ch3: impl Unborrow<Target = impl GpioOptionalPin> + 'd,
) -> Self {
unborrow!(pwm, ch0, ch1, ch2, ch3);
let r = T::regs();
let s = T::state();
if let Some(pin) = ch0.pin_mut() {
pin.set_low();
pin.conf().write(|w| w.dir().output());
}
if let Some(pin) = ch1.pin_mut() {
pin.set_low();
pin.conf().write(|w| w.dir().output());
}
if let Some(pin) = ch2.pin_mut() {
pin.set_low();
pin.conf().write(|w| w.dir().output());
}
if let Some(pin) = ch3.pin_mut() {
pin.set_low();
pin.conf().write(|w| w.dir().output());
}
r.psel.out[0].write(|w| unsafe { w.bits(ch0.psel_bits()) });
r.psel.out[1].write(|w| unsafe { w.bits(ch1.psel_bits()) });
r.psel.out[2].write(|w| unsafe { w.bits(ch2.psel_bits()) });
r.psel.out[3].write(|w| unsafe { w.bits(ch3.psel_bits()) });
// Disable all interrupts
r.intenclr.write(|w| unsafe { w.bits(0xFFFF_FFFF) });
// Enable
r.enable.write(|w| w.enable().enabled());
r.seq0
.ptr
.write(|w| unsafe { w.bits(&s.duty as *const _ as u32) });
r.seq0.cnt.write(|w| unsafe { w.bits(4) });
r.seq0.refresh.write(|w| unsafe { w.bits(32) });
r.seq0.enddelay.write(|w| unsafe { w.bits(0) });
r.decoder.write(|w| {
w.load().individual();
w.mode().refresh_count()
});
r.mode.write(|w| w.updown().up());
r.prescaler.write(|w| w.prescaler().div_1());
r.countertop
.write(|w| unsafe { w.countertop().bits(32767) });
r.loop_.write(|w| w.cnt().disabled());
Self {
peri: pwm,
phantom: PhantomData,
}
}
/// Enables the PWM generator.
#[inline(always)]
pub fn enable(&self) {
let r = T::regs();
r.enable.write(|w| w.enable().enabled());
}
/// Disables the PWM generator.
#[inline(always)]
pub fn disable(&self) {
let r = T::regs();
r.enable.write(|w| w.enable().disabled());
}
/// Sets duty cycle (15 bit) for a PWM channel.
pub fn set_duty(&self, channel: usize, duty: u16) {
let s = T::state();
unsafe { (*s.duty.get())[channel] = duty & 0x7FFF };
compiler_fence(Ordering::SeqCst);
T::regs().tasks_seqstart[0].write(|w| unsafe { w.bits(1) });
}
/// Sets the PWM clock prescaler.
#[inline(always)]
pub fn set_prescaler(&self, div: Prescaler) {
T::regs().prescaler.write(|w| w.prescaler().bits(div as u8));
}
/// Sets the PWM clock prescaler.
#[inline(always)]
pub fn prescaler(&self) -> Prescaler {
match T::regs().prescaler.read().prescaler().bits() {
0 => Prescaler::Div1,
1 => Prescaler::Div2,
2 => Prescaler::Div4,
3 => Prescaler::Div8,
4 => Prescaler::Div16,
5 => Prescaler::Div32,
6 => Prescaler::Div64,
7 => Prescaler::Div128,
_ => unreachable!(),
}
}
/// Sets the maximum duty cycle value.
#[inline(always)]
pub fn set_max_duty(&self, duty: u16) {
T::regs()
.countertop
.write(|w| unsafe { w.countertop().bits(duty.min(32767u16)) });
}
/// Returns the maximum duty cycle value.
#[inline(always)]
pub fn max_duty(&self) -> u16 {
T::regs().countertop.read().countertop().bits()
}
/// Sets the PWM output frequency.
#[inline(always)]
pub fn set_period(&self, freq: u32) {
let clk = 16_000_000u32 >> (self.prescaler() as u8);
let duty = clk / freq;
self.set_max_duty(duty.min(32767) as u16);
}
/// Returns the PWM output frequency.
#[inline(always)]
pub fn period(&self) -> u32 {
let clk = 16_000_000u32 >> (self.prescaler() as u8);
let max_duty = self.max_duty() as u32;
clk / max_duty
}
}
impl<'a, T: Instance> Drop for Pwm<'a, T> {
fn drop(&mut self) {
let r = T::regs();
r.enable.write(|w| w.enable().disabled());
info!("pwm drop: done");
// TODO: disable pins
}
}
pub(crate) mod sealed {
use super::*;
pub struct State {
pub duty: UnsafeCell<[u16; 4]>,
}
unsafe impl Sync for State {}
impl State {
pub const fn new() -> Self {
Self {
duty: UnsafeCell::new([0; 4]),
}
}
}
pub trait Instance {
fn regs() -> &'static pac::pwm0::RegisterBlock;
fn state() -> &'static State;
}
}
pub trait Instance: Unborrow<Target = Self> + sealed::Instance + 'static {
type Interrupt: Interrupt;
}
macro_rules! impl_pwm {
($type:ident, $pac_type:ident, $irq:ident) => {
impl crate::pwm::sealed::Instance for peripherals::$type {
fn regs() -> &'static pac::pwm0::RegisterBlock {
unsafe { &*pac::$pac_type::ptr() }
}
fn state() -> &'static crate::pwm::sealed::State {
static STATE: crate::pwm::sealed::State = crate::pwm::sealed::State::new();
&STATE
}
}
impl crate::pwm::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
}
};
}

24
embassy-nrf/src/qspi.rs
View File

@@ -1,3 +1,5 @@
#![macro_use]
use core::future::Future;
use core::marker::PhantomData;
use core::task::Poll;
@@ -361,7 +363,7 @@ impl<'d, T: Instance> Flash for Qspi<'d, T> {
}
}
mod sealed {
pub(crate) mod sealed {
use super::*;
pub struct State {
@@ -381,25 +383,23 @@ mod sealed {
}
}
pub trait Instance: sealed::Instance + 'static {
pub trait Instance: Unborrow<Target = Self> + sealed::Instance + 'static {
type Interrupt: Interrupt;
}
macro_rules! impl_instance {
($type:ident, $irq:ident) => {
impl sealed::Instance for peripherals::$type {
macro_rules! impl_qspi {
($type:ident, $pac_type:ident, $irq:ident) => {
impl crate::qspi::sealed::Instance for peripherals::$type {
fn regs() -> &'static pac::qspi::RegisterBlock {
unsafe { &*pac::$type::ptr() }
unsafe { &*pac::$pac_type::ptr() }
}
fn state() -> &'static sealed::State {
static STATE: sealed::State = sealed::State::new();
fn state() -> &'static crate::qspi::sealed::State {
static STATE: crate::qspi::sealed::State = crate::qspi::sealed::State::new();
&STATE
}
}
impl Instance for peripherals::$type {
type Interrupt = interrupt::$irq;
impl crate::qspi::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
}
};
}
impl_instance!(QSPI, QSPI);

4
embassy-nrf/src/rtc.rs
View File

@@ -3,7 +3,7 @@ use core::sync::atomic::{compiler_fence, AtomicU32, Ordering};
use critical_section::CriticalSection;
use embassy::interrupt::InterruptExt;
use embassy::time::Clock;
use embassy::util::CriticalSectionMutex as Mutex;
use embassy::util::{CriticalSectionMutex as Mutex, Unborrow};
use crate::interrupt::Interrupt;
use crate::pac;
@@ -283,7 +283,7 @@ macro_rules! impl_instance {
}
/// Implemented by all RTC instances.
pub trait Instance: sealed::Instance + 'static {
pub trait Instance: Unborrow<Target = Self> + sealed::Instance + 'static {
/// The interrupt associated with this RTC instance.
type Interrupt: Interrupt;
}

49
embassy-nrf/src/spim.rs
View File

@@ -1,3 +1,5 @@
#![macro_use]
use core::future::Future;
use core::marker::PhantomData;
use core::sync::atomic::{compiler_fence, Ordering};
@@ -12,7 +14,7 @@ use traits::spi::FullDuplex;
use crate::gpio::sealed::Pin as _;
use crate::gpio::{OptionalPin, Pin as GpioPin};
use crate::interrupt::{self, Interrupt};
use crate::{pac, peripherals, slice_in_ram_or};
use crate::{pac, peripherals, util::slice_in_ram_or};
pub use embedded_hal::spi::{Mode, Phase, Polarity, MODE_0, MODE_1, MODE_2, MODE_3};
pub use pac::spim0::frequency::FREQUENCY_A as Frequency;
@@ -33,12 +35,23 @@ pub struct Spim<'d, T: Instance> {
phantom: PhantomData<&'d mut T>,
}
#[non_exhaustive]
pub struct Config {
pub frequency: Frequency,
pub mode: Mode,
pub orc: u8,
}
impl Default for Config {
fn default() -> Self {
Self {
frequency: Frequency::M1,
mode: MODE_0,
orc: 0x00,
}
}
}
impl<'d, T: Instance> Spim<'d, T> {
pub fn new(
spim: impl Unborrow<Target = T> + 'd,
@@ -315,7 +328,7 @@ impl<'d, T: Instance> embedded_hal::blocking::spi::Write<u8> for Spim<'d, T> {
}
}
mod sealed {
pub(crate) mod sealed {
use super::*;
pub struct State {
@@ -336,37 +349,23 @@ mod sealed {
}
}
pub trait Instance: sealed::Instance + 'static {
pub trait Instance: Unborrow<Target = Self> + sealed::Instance + 'static {
type Interrupt: Interrupt;
}
macro_rules! impl_instance {
($type:ident, $irq:ident) => {
impl sealed::Instance for peripherals::$type {
macro_rules! impl_spim {
($type:ident, $pac_type:ident, $irq:ident) => {
impl crate::spim::sealed::Instance for peripherals::$type {
fn regs() -> &'static pac::spim0::RegisterBlock {
unsafe { &*pac::$type::ptr() }
unsafe { &*pac::$pac_type::ptr() }
}
fn state() -> &'static sealed::State {
static STATE: sealed::State = sealed::State::new();
fn state() -> &'static crate::spim::sealed::State {
static STATE: crate::spim::sealed::State = crate::spim::sealed::State::new();
&STATE
}
}
impl Instance for peripherals::$type {
type Interrupt = interrupt::$irq;
impl crate::spim::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
}
};
}
#[cfg(feature = "52810")]
impl_instance!(SPIM0, SPIM0_SPIS0_SPI0);
#[cfg(not(feature = "52810"))]
impl_instance!(SPIM0, SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
#[cfg(any(feature = "52832", feature = "52833", feature = "52840"))]
impl_instance!(SPIM1, SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1);
#[cfg(any(feature = "52832", feature = "52833", feature = "52840"))]
impl_instance!(SPIM2, SPIM2_SPIS2_SPI2);
#[cfg(any(feature = "52833", feature = "52840"))]
impl_instance!(SPIM3, SPIM3);

76
embassy-nrf/src/system.rs
View File

@@ -1,76 +0,0 @@
use crate::pac;
pub enum HfclkSource {
Internal,
ExternalXtal,
}
pub enum LfclkSource {
InternalRC,
Synthesized,
ExternalXtal,
ExternalLowSwing,
ExternalFullSwing,
}
#[non_exhaustive]
pub struct Config {
pub hfclk_source: HfclkSource,
pub lfclk_source: LfclkSource,
}
impl Default for Config {
fn default() -> Self {
Self {
// There are hobby nrf52 boards out there without external XTALs...
// Default everything to internal so it Just Works. User can enable external
// xtals if they know they have them.
hfclk_source: HfclkSource::Internal,
lfclk_source: LfclkSource::InternalRC,
}
}
}
/// safety: must only call once.
pub unsafe fn configure(config: Config) {
let r = &*pac::CLOCK::ptr();
// Start HFCLK.
match config.hfclk_source {
HfclkSource::Internal => {}
HfclkSource::ExternalXtal => {
// Datasheet says this is likely to take 0.36ms
r.events_hfclkstarted.write(|w| unsafe { w.bits(0) });
r.tasks_hfclkstart.write(|w| unsafe { w.bits(1) });
while r.events_hfclkstarted.read().bits() == 0 {}
}
}
// Configure LFCLK.
match config.lfclk_source {
LfclkSource::InternalRC => r.lfclksrc.write(|w| w.src().rc()),
LfclkSource::Synthesized => r.lfclksrc.write(|w| w.src().synth()),
LfclkSource::ExternalXtal => r.lfclksrc.write(move |w| w.src().xtal()),
LfclkSource::ExternalLowSwing => r.lfclksrc.write(move |w| {
w.src().xtal();
w.external().enabled();
w.bypass().disabled();
w
}),
LfclkSource::ExternalFullSwing => r.lfclksrc.write(move |w| {
w.src().xtal();
w.external().enabled();
w.bypass().enabled();
w
}),
}
// Start LFCLK.
// Datasheet says this could take 100us from synth source
// 600us from rc source, 0.25s from an external source.
r.events_lfclkstarted.write(|w| unsafe { w.bits(0) });
r.tasks_lfclkstart.write(|w| unsafe { w.bits(1) });
while r.events_lfclkstarted.read().bits() == 0 {}
}

37
embassy-nrf/src/timer.rs
View File

@@ -1,8 +1,11 @@
#![macro_use]
use embassy::interrupt::Interrupt;
use embassy::util::Unborrow;
use crate::{interrupt, pac, peripherals};
use crate::pac;
mod sealed {
pub(crate) mod sealed {
use super::*;
pub trait Instance {
@@ -11,33 +14,25 @@ mod sealed {
pub trait ExtendedInstance {}
}
pub trait Instance: sealed::Instance + 'static {
pub trait Instance: Unborrow<Target = Self> + sealed::Instance + 'static {
type Interrupt: Interrupt;
}
pub trait ExtendedInstance: Instance + sealed::ExtendedInstance {}
macro_rules! impl_instance {
($type:ident, $irq:ident) => {
impl sealed::Instance for peripherals::$type {
macro_rules! impl_timer {
($type:ident, $pac_type:ident, $irq:ident) => {
impl crate::timer::sealed::Instance for peripherals::$type {
fn regs(&self) -> &pac::timer0::RegisterBlock {
unsafe { &*(pac::$type::ptr() as *const pac::timer0::RegisterBlock) }
unsafe { &*(pac::$pac_type::ptr() as *const pac::timer0::RegisterBlock) }
}
}
impl Instance for peripherals::$type {
type Interrupt = interrupt::$irq;
impl crate::timer::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
}
};
($type:ident, $irq:ident, extended) => {
impl_instance!($type, $irq);
impl sealed::ExtendedInstance for peripherals::$type {}
impl ExtendedInstance for peripherals::$type {}
($type:ident, $pac_type:ident, $irq:ident, extended) => {
impl_timer!($type, $pac_type, $irq);
impl crate::timer::sealed::ExtendedInstance for peripherals::$type {}
impl crate::timer::ExtendedInstance for peripherals::$type {}
};
}
impl_instance!(TIMER0, TIMER0);
impl_instance!(TIMER1, TIMER1);
impl_instance!(TIMER2, TIMER2);
#[cfg(any(feature = "52832", feature = "52833", feature = "52840"))]
impl_instance!(TIMER3, TIMER3, extended);
#[cfg(any(feature = "52832", feature = "52833", feature = "52840"))]
impl_instance!(TIMER4, TIMER4, extended);

531
embassy-nrf/src/twim.rs Normal file
View File

@@ -0,0 +1,531 @@
#![macro_use]
//! HAL interface to the TWIM peripheral.
//!
//! See product specification:
//!
//! - nRF52832: Section 33
//! - nRF52840: Section 6.31
use core::marker::PhantomData;
use core::sync::atomic::{compiler_fence, Ordering::SeqCst};
use embassy::interrupt::{Interrupt, InterruptExt};
use embassy::util::{AtomicWaker, Unborrow};
use embassy_extras::unborrow;
use crate::chip::{EASY_DMA_SIZE, FORCE_COPY_BUFFER_SIZE};
use crate::fmt::*;
use crate::gpio::Pin as GpioPin;
use crate::pac;
use crate::util::{slice_in_ram, slice_in_ram_or};
pub enum Frequency {
#[doc = "26738688: 100 kbps"]
K100 = 26738688,
#[doc = "67108864: 250 kbps"]
K250 = 67108864,
#[doc = "104857600: 400 kbps"]
K400 = 104857600,
}
#[non_exhaustive]
pub struct Config {
pub frequency: Frequency,
}
impl Default for Config {
fn default() -> Self {
Self {
frequency: Frequency::K100,
}
}
}
/// Interface to a TWIM instance.
pub struct Twim<'d, T: Instance> {
peri: T,
irq: T::Interrupt,
phantom: PhantomData<&'d mut T>,
}
impl<'d, T: Instance> Twim<'d, T> {
pub fn new(
twim: impl Unborrow<Target = T> + 'd,
irq: impl Unborrow<Target = T::Interrupt> + 'd,
sda: impl Unborrow<Target = impl GpioPin> + 'd,
scl: impl Unborrow<Target = impl GpioPin> + 'd,
config: Config,
) -> Self {
unborrow!(twim, irq, sda, scl);
let r = T::regs();
// Configure pins
sda.conf().write(|w| {
w.dir().input();
w.input().connect();
w.pull().pullup();
w.drive().s0d1();
w
});
scl.conf().write(|w| {
w.dir().input();
w.input().connect();
w.pull().pullup();
w.drive().s0d1();
w
});
// Select pins.
r.psel.sda.write(|w| unsafe { w.bits(sda.psel_bits()) });
r.psel.scl.write(|w| unsafe { w.bits(scl.psel_bits()) });
// Enable TWIM instance.
r.enable.write(|w| w.enable().enabled());
// Configure frequency.
r.frequency
.write(|w| unsafe { w.frequency().bits(config.frequency as u32) });
// Disable all events interrupts
r.intenclr.write(|w| unsafe { w.bits(0xFFFF_FFFF) });
irq.set_handler(Self::on_interrupt);
irq.unpend();
irq.enable();
Self {
peri: twim,
irq,
phantom: PhantomData,
}
}
fn on_interrupt(_: *mut ()) {
let r = T::regs();
let s = T::state();
if r.events_stopped.read().bits() != 0 {
s.end_waker.wake();
r.intenclr.write(|w| w.stopped().clear());
}
if r.events_error.read().bits() != 0 {
s.end_waker.wake();
r.intenclr.write(|w| w.error().clear());
}
}
/// Set TX buffer, checking that it is in RAM and has suitable length.
unsafe fn set_tx_buffer(&mut self, buffer: &[u8]) -> Result<(), Error> {
slice_in_ram_or(buffer, Error::DMABufferNotInDataMemory)?;
if buffer.len() == 0 {
return Err(Error::TxBufferZeroLength);
}
if buffer.len() > EASY_DMA_SIZE {
return Err(Error::TxBufferTooLong);
}
let r = T::regs();
r.txd.ptr.write(|w|
// We're giving the register a pointer to the stack. Since we're
// waiting for the I2C transaction to end before this stack pointer
// becomes invalid, there's nothing wrong here.
//
// The PTR field is a full 32 bits wide and accepts the full range
// of values.
w.ptr().bits(buffer.as_ptr() as u32));
r.txd.maxcnt.write(|w|
// We're giving it the length of the buffer, so no danger of
// accessing invalid memory. We have verified that the length of the
// buffer fits in an `u8`, so the cast to `u8` is also fine.
//
// The MAXCNT field is 8 bits wide and accepts the full range of
// values.
w.maxcnt().bits(buffer.len() as _));
Ok(())
}
/// Set RX buffer, checking that it has suitable length.
unsafe fn set_rx_buffer(&mut self, buffer: &mut [u8]) -> Result<(), Error> {
// NOTE: RAM slice check is not necessary, as a mutable
// slice can only be built from data located in RAM.
if buffer.len() == 0 {
return Err(Error::RxBufferZeroLength);
}
if buffer.len() > EASY_DMA_SIZE {
return Err(Error::RxBufferTooLong);
}
let r = T::regs();
r.rxd.ptr.write(|w|
// We're giving the register a pointer to the stack. Since we're
// waiting for the I2C transaction to end before this stack pointer
// becomes invalid, there's nothing wrong here.
//
// The PTR field is a full 32 bits wide and accepts the full range
// of values.
w.ptr().bits(buffer.as_mut_ptr() as u32));
r.rxd.maxcnt.write(|w|
// We're giving it the length of the buffer, so no danger of
// accessing invalid memory. We have verified that the length of the
// buffer fits in an `u8`, so the cast to the type of maxcnt
// is also fine.
//
// Note that that nrf52840 maxcnt is a wider
// type than a u8, so we use a `_` cast rather than a `u8` cast.
// The MAXCNT field is thus at least 8 bits wide and accepts the
// full range of values that fit in a `u8`.
w.maxcnt().bits(buffer.len() as _));
Ok(())
}
fn clear_errorsrc(&mut self) {
let r = T::regs();
r.errorsrc
.write(|w| w.anack().bit(true).dnack().bit(true).overrun().bit(true));
}
/// Get Error instance, if any occurred.
fn read_errorsrc(&self) -> Result<(), Error> {
let r = T::regs();
let err = r.errorsrc.read();
if err.anack().is_received() {
return Err(Error::AddressNack);
}
if err.dnack().is_received() {
return Err(Error::DataNack);
}
if err.overrun().is_received() {
return Err(Error::DataNack);
}
Ok(())
}
/// Wait for stop or error
fn wait(&mut self) {
let r = T::regs();
loop {
if r.events_stopped.read().bits() != 0 {
r.events_stopped.reset();
break;
}
if r.events_error.read().bits() != 0 {
r.events_error.reset();
r.tasks_stop.write(|w| unsafe { w.bits(1) });
}
}
}
/// Write to an I2C slave.
///
/// The buffer must have a length of at most 255 bytes on the nRF52832
/// and at most 65535 bytes on the nRF52840.
pub fn write(&mut self, address: u8, buffer: &[u8]) -> Result<(), Error> {
let r = T::regs();
// Conservative compiler fence to prevent optimizations that do not
// take in to account actions by DMA. The fence has been placed here,
// before any DMA action has started.
compiler_fence(SeqCst);
r.address.write(|w| unsafe { w.address().bits(address) });
// Set up the DMA write.
unsafe { self.set_tx_buffer(buffer)? };
// Clear events
r.events_stopped.reset();
r.events_error.reset();
r.events_lasttx.reset();
self.clear_errorsrc();
// Start write operation.
r.shorts.write(|w| w.lasttx_stop().enabled());
r.tasks_starttx.write(|w|
// `1` is a valid value to write to task registers.
unsafe { w.bits(1) });
self.wait();
// Conservative compiler fence to prevent optimizations that do not
// take in to account actions by DMA. The fence has been placed here,
// after all possible DMA actions have completed.
compiler_fence(SeqCst);
self.read_errorsrc()?;
if r.txd.amount.read().bits() != buffer.len() as u32 {
return Err(Error::Transmit);
}
Ok(())
}
/// Read from an I2C slave.
///
/// The buffer must have a length of at most 255 bytes on the nRF52832
/// and at most 65535 bytes on the nRF52840.
pub fn read(&mut self, address: u8, buffer: &mut [u8]) -> Result<(), Error> {
let r = T::regs();
// Conservative compiler fence to prevent optimizations that do not
// take in to account actions by DMA. The fence has been placed here,
// before any DMA action has started.
compiler_fence(SeqCst);
r.address.write(|w| unsafe { w.address().bits(address) });
// Set up the DMA read.
unsafe { self.set_rx_buffer(buffer)? };
// Clear events
r.events_stopped.reset();
r.events_error.reset();
self.clear_errorsrc();
// Start read operation.
r.shorts.write(|w| w.lastrx_stop().enabled());
r.tasks_startrx.write(|w|
// `1` is a valid value to write to task registers.
unsafe { w.bits(1) });
self.wait();
// Conservative compiler fence to prevent optimizations that do not
// take in to account actions by DMA. The fence has been placed here,
// after all possible DMA actions have completed.
compiler_fence(SeqCst);
self.read_errorsrc()?;
if r.rxd.amount.read().bits() != buffer.len() as u32 {
return Err(Error::Receive);
}
Ok(())
}
/// Write data to an I2C slave, then read data from the slave without
/// triggering a stop condition between the two.
///
/// The buffers must have a length of at most 255 bytes on the nRF52832
/// and at most 65535 bytes on the nRF52840.
pub fn write_then_read(
&mut self,
address: u8,
wr_buffer: &[u8],
rd_buffer: &mut [u8],
) -> Result<(), Error> {
let r = T::regs();
// Conservative compiler fence to prevent optimizations that do not
// take in to account actions by DMA. The fence has been placed here,
// before any DMA action has started.
compiler_fence(SeqCst);
r.address.write(|w| unsafe { w.address().bits(address) });
// Set up DMA buffers.
unsafe {
self.set_tx_buffer(wr_buffer)?;
self.set_rx_buffer(rd_buffer)?;
}
// Clear events
r.events_stopped.reset();
r.events_error.reset();
self.clear_errorsrc();
// Start write+read operation.
r.shorts.write(|w| {
w.lasttx_startrx().enabled();
w.lastrx_stop().enabled();
w
});
// `1` is a valid value to write to task registers.
r.tasks_starttx.write(|w| unsafe { w.bits(1) });
self.wait();
// Conservative compiler fence to prevent optimizations that do not
// take in to account actions by DMA. The fence has been placed here,
// after all possible DMA actions have completed.
compiler_fence(SeqCst);
self.read_errorsrc()?;
let bad_write = r.txd.amount.read().bits() != wr_buffer.len() as u32;
let bad_read = r.rxd.amount.read().bits() != rd_buffer.len() as u32;
if bad_write {
return Err(Error::Transmit);
}
if bad_read {
return Err(Error::Receive);
}
Ok(())
}
/// Copy data into RAM and write to an I2C slave.
///
/// The write buffer must have a length of at most 255 bytes on the nRF52832
/// and at most 1024 bytes on the nRF52840.
pub fn copy_write(&mut self, address: u8, wr_buffer: &[u8]) -> Result<(), Error> {
if wr_buffer.len() > FORCE_COPY_BUFFER_SIZE {
return Err(Error::TxBufferTooLong);
}
// Copy to RAM
let wr_ram_buffer = &mut [0; FORCE_COPY_BUFFER_SIZE][..wr_buffer.len()];
wr_ram_buffer.copy_from_slice(wr_buffer);
self.write(address, wr_ram_buffer)
}
/// Copy data into RAM and write to an I2C slave, then read data from the slave without
/// triggering a stop condition between the two.
///
/// The write buffer must have a length of at most 255 bytes on the nRF52832
/// and at most 1024 bytes on the nRF52840.
///
/// The read buffer must have a length of at most 255 bytes on the nRF52832
/// and at most 65535 bytes on the nRF52840.
pub fn copy_write_then_read(
&mut self,
address: u8,
wr_buffer: &[u8],
rd_buffer: &mut [u8],
) -> Result<(), Error> {
if wr_buffer.len() > FORCE_COPY_BUFFER_SIZE {
return Err(Error::TxBufferTooLong);
}
// Copy to RAM
let wr_ram_buffer = &mut [0; FORCE_COPY_BUFFER_SIZE][..wr_buffer.len()];
wr_ram_buffer.copy_from_slice(wr_buffer);
self.write_then_read(address, wr_ram_buffer, rd_buffer)
}
}
impl<'a, T: Instance> Drop for Twim<'a, T> {
fn drop(&mut self) {
info!("twim drop");
// TODO when implementing async here, check for abort
// disable!
let r = T::regs();
r.enable.write(|w| w.enable().disabled());
info!("uarte drop: done");
// TODO: disable pins
}
}
impl<'a, T: Instance> embedded_hal::blocking::i2c::Write for Twim<'a, T> {
type Error = Error;
fn write<'w>(&mut self, addr: u8, bytes: &'w [u8]) -> Result<(), Error> {
if slice_in_ram(bytes) {
self.write(addr, bytes)
} else {
let buf = &mut [0; FORCE_COPY_BUFFER_SIZE][..];
for chunk in bytes.chunks(FORCE_COPY_BUFFER_SIZE) {
buf[..chunk.len()].copy_from_slice(chunk);
self.write(addr, &buf[..chunk.len()])?;
}
Ok(())
}
}
}
impl<'a, T: Instance> embedded_hal::blocking::i2c::Read for Twim<'a, T> {
type Error = Error;
fn read<'w>(&mut self, addr: u8, bytes: &'w mut [u8]) -> Result<(), Error> {
self.read(addr, bytes)
}
}
impl<'a, T: Instance> embedded_hal::blocking::i2c::WriteRead for Twim<'a, T> {
type Error = Error;
fn write_read<'w>(
&mut self,
addr: u8,
bytes: &'w [u8],
buffer: &'w mut [u8],
) -> Result<(), Error> {
if slice_in_ram(bytes) {
self.write_then_read(addr, bytes, buffer)
} else {
self.copy_write_then_read(addr, bytes, buffer)
}
}
}
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
pub enum Error {
TxBufferTooLong,
RxBufferTooLong,
TxBufferZeroLength,
RxBufferZeroLength,
Transmit,
Receive,
DMABufferNotInDataMemory,
AddressNack,
DataNack,
Overrun,
}
pub(crate) mod sealed {
use super::*;
pub struct State {
pub end_waker: AtomicWaker,
}
impl State {
pub const fn new() -> Self {
Self {
end_waker: AtomicWaker::new(),
}
}
}
pub trait Instance {
fn regs() -> &'static pac::twim0::RegisterBlock;
fn state() -> &'static State;
}
}
pub trait Instance: Unborrow<Target = Self> + sealed::Instance + 'static {
type Interrupt: Interrupt;
}
macro_rules! impl_twim {
($type:ident, $pac_type:ident, $irq:ident) => {
impl crate::twim::sealed::Instance for peripherals::$type {
fn regs() -> &'static pac::twim0::RegisterBlock {
unsafe { &*pac::$pac_type::ptr() }
}
fn state() -> &'static crate::twim::sealed::State {
static STATE: crate::twim::sealed::State = crate::twim::sealed::State::new();
&STATE
}
}
impl crate::twim::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
}
};
}

28
embassy-nrf/src/uarte.rs
View File

@@ -1,3 +1,5 @@
#![macro_use]
//! Async UART
use core::future::Future;
@@ -10,6 +12,7 @@ use embassy::util::{AtomicWaker, OnDrop, Unborrow};
use embassy_extras::unborrow;
use futures::future::poll_fn;
use crate::chip::EASY_DMA_SIZE;
use crate::fmt::{assert, panic, *};
use crate::gpio::sealed::Pin as _;
use crate::gpio::{OptionalPin as GpioOptionalPin, Pin as GpioPin};
@@ -18,7 +21,6 @@ use crate::interrupt::Interrupt;
use crate::pac;
use crate::peripherals;
use crate::ppi::{AnyConfigurableChannel, ConfigurableChannel, Event, Ppi, Task};
use crate::target_constants::EASY_DMA_SIZE;
use crate::timer::Instance as TimerInstance;
// Re-export SVD variants to allow user to directly set values.
@@ -445,7 +447,7 @@ impl<'d, U: Instance, T: TimerInstance> Write for UarteWithIdle<'d, U, T> {
}
}
mod sealed {
pub(crate) mod sealed {
use super::*;
pub struct State {
@@ -467,27 +469,23 @@ mod sealed {
}
}
pub trait Instance: sealed::Instance + 'static {
pub trait Instance: Unborrow<Target = Self> + sealed::Instance + 'static {
type Interrupt: Interrupt;
}
macro_rules! impl_instance {
($type:ident, $irq:ident) => {
impl sealed::Instance for peripherals::$type {
macro_rules! impl_uarte {
($type:ident, $pac_type:ident, $irq:ident) => {
impl crate::uarte::sealed::Instance for peripherals::$type {
fn regs() -> &'static pac::uarte0::RegisterBlock {
unsafe { &*pac::$type::ptr() }
unsafe { &*pac::$pac_type::ptr() }
}
fn state() -> &'static sealed::State {
static STATE: sealed::State = sealed::State::new();
fn state() -> &'static crate::uarte::sealed::State {
static STATE: crate::uarte::sealed::State = crate::uarte::sealed::State::new();
&STATE
}
}
impl Instance for peripherals::$type {
type Interrupt = interrupt::$irq;
impl crate::uarte::Instance for peripherals::$type {
type Interrupt = crate::interrupt::$irq;
}
};
}
impl_instance!(UARTE0, UARTE0_UART0);
#[cfg(any(feature = "52833", feature = "52840", feature = "9160"))]
impl_instance!(UARTE1, UARTE1);

18
embassy-nrf/src/util.rs Normal file
View File

@@ -0,0 +1,18 @@
const SRAM_LOWER: usize = 0x2000_0000;
const SRAM_UPPER: usize = 0x3000_0000;
/// Does this slice reside entirely within RAM?
pub(crate) fn slice_in_ram(slice: &[u8]) -> bool {
let ptr = slice.as_ptr() as usize;
ptr >= SRAM_LOWER && (ptr + slice.len()) < SRAM_UPPER
}
/// Return an error if slice is not in RAM.
#[cfg(not(feature = "51"))]
pub(crate) fn slice_in_ram_or<T>(slice: &[u8], err: T) -> Result<(), T> {
if slice.len() == 0 || slice_in_ram(slice) {
Ok(())
} else {
Err(err)
}
}

4
embassy-rp-examples/src/bin/blinky.rs
View File

@@ -16,9 +16,7 @@ use embedded_hal::digital::v2::OutputPin;
use gpio::{Level, Output};
#[embassy::main]
async fn main(_spawner: Spawner) {
let p = unwrap!(Peripherals::take());
async fn main(_spawner: Spawner, p: Peripherals) {
let mut led = Output::new(p.PIN_25, Level::Low);
loop {

4
embassy-rp-examples/src/bin/button.rs
View File

@@ -16,9 +16,7 @@ use embassy_rp::Peripherals;
use embedded_hal::digital::v2::{InputPin, OutputPin};
#[embassy::main]
async fn main(_spawner: Spawner) {
let p = unwrap!(Peripherals::take());
async fn main(_spawner: Spawner, p: Peripherals) {
let button = Input::new(p.PIN_28, Pull::Up);
let mut led = Output::new(p.PIN_25, Level::Low);

4
embassy-rp-examples/src/bin/uart.rs
View File

@@ -14,9 +14,7 @@ use embassy::executor::Spawner;
use embassy_rp::{uart, Peripherals};
#[embassy::main]
async fn main(_spanwer: Spawner) {
let p = unwrap!(Peripherals::take());
async fn main(_spawner: Spawner, p: Peripherals) {
let config = uart::Config::default();
let mut uart = uart::Uart::new(p.UART0, p.PIN_0, p.PIN_1, p.PIN_2, p.PIN_3, config);
uart.send("Hello World!\r\n".as_bytes());

103
embassy-rp/src/lib.rs
View File

@@ -15,7 +15,6 @@ pub mod dma;
pub mod gpio;
pub mod pll;
pub mod resets;
pub mod system;
pub mod uart;
embassy_extras::peripherals! {
@@ -72,3 +71,105 @@ embassy_extras::peripherals! {
DMA_CH10,
DMA_CH11,
}
#[link_section = ".boot2"]
#[used]
static BOOT2: [u8; 256] = *include_bytes!("boot2.bin");
pub mod config {
#[non_exhaustive]
pub struct Config {}
impl Default for Config {
fn default() -> Self {
Self {}
}
}
}
pub fn init(config: config::Config) -> Peripherals {
// Do this first, so that it panics if user is calling `init` a second time
// before doing anything important.
let peripherals = Peripherals::take();
// Now reset all the peripherals, except QSPI and XIP (we're using those
// to execute from external flash!)
let resets = resets::Resets::new();
// Reset everything except:
// - QSPI (we're using it to run this code!)
// - PLLs (it may be suicide if that's what's clocking us)
let mut peris = resets::ALL_PERIPHERALS;
peris.set_io_qspi(false);
peris.set_pads_qspi(false);
peris.set_pll_sys(false);
peris.set_pll_usb(false);
resets.reset(peris);
let mut peris = resets::ALL_PERIPHERALS;
peris.set_adc(false);
peris.set_rtc(false);
peris.set_spi0(false);
peris.set_spi1(false);
peris.set_uart0(false);
peris.set_uart1(false);
peris.set_usbctrl(false);
resets.unreset_wait(peris);
unsafe {
// xosc 12 mhz
pac::WATCHDOG.tick().write(|w| {
w.set_cycles(XOSC_MHZ as u16);
w.set_enable(true);
});
pac::CLOCKS
.clk_sys_resus_ctrl()
.write_value(pac::clocks::regs::ClkSysResusCtrl(0));
// Enable XOSC
// TODO extract to HAL module
const XOSC_MHZ: u32 = 12;
pac::XOSC
.ctrl()
.write(|w| w.set_freq_range(pac::xosc::vals::CtrlFreqRange::_1_15MHZ));
let startup_delay = (((XOSC_MHZ * 1_000_000) / 1000) + 128) / 256;
pac::XOSC
.startup()
.write(|w| w.set_delay(startup_delay as u16));
pac::XOSC.ctrl().write(|w| {
w.set_freq_range(pac::xosc::vals::CtrlFreqRange::_1_15MHZ);
w.set_enable(pac::xosc::vals::CtrlEnable::ENABLE);
});
while !pac::XOSC.status().read().stable() {}
// Before we touch PLLs, switch sys and ref cleanly away from their aux sources.
pac::CLOCKS
.clk_sys_ctrl()
.modify(|w| w.set_src(pac::clocks::vals::ClkSysCtrlSrc::CLK_REF));
while pac::CLOCKS.clk_sys_selected().read() != 1 {}
pac::CLOCKS
.clk_ref_ctrl()
.modify(|w| w.set_src(pac::clocks::vals::ClkRefCtrlSrc::ROSC_CLKSRC_PH));
while pac::CLOCKS.clk_ref_selected().read() != 1 {}
let mut peris = resets::Peripherals(0);
peris.set_pll_sys(true);
peris.set_pll_usb(true);
resets.reset(peris);
resets.unreset_wait(peris);
pll::PLL::new(pll::PllSys).configure(1, 1500_000_000, 6, 2);
pll::PLL::new(pll::PllUsb).configure(1, 480_000_000, 5, 2);
// Activate peripheral clock and take external oscillator as input
pac::CLOCKS.clk_peri_ctrl().write(|w| {
w.set_enable(true);
w.set_auxsrc(pac::clocks::vals::ClkPeriCtrlAuxsrc::XOSC_CLKSRC);
});
}
peripherals
}

94
embassy-rp/src/system.rs
View File

@@ -1,94 +0,0 @@
use crate::{pac, pll, resets};
#[link_section = ".boot2"]
#[used]
pub static BOOT2: [u8; 256] = *include_bytes!("boot2.bin");
#[non_exhaustive]
pub struct Config {}
impl Default for Config {
fn default() -> Self {
Self {}
}
}
/// safety: must only call once.
pub unsafe fn configure(_config: Config) {
// Now reset all the peripherals, except QSPI and XIP (we're using those
// to execute from external flash!)
let resets = resets::Resets::new();
// Reset everything except:
// - QSPI (we're using it to run this code!)
// - PLLs (it may be suicide if that's what's clocking us)
let mut peris = resets::ALL_PERIPHERALS;
peris.set_io_qspi(false);
peris.set_pads_qspi(false);
peris.set_pll_sys(false);
peris.set_pll_usb(false);
resets.reset(peris);
let mut peris = resets::ALL_PERIPHERALS;
peris.set_adc(false);
peris.set_rtc(false);
peris.set_spi0(false);
peris.set_spi1(false);
peris.set_uart0(false);
peris.set_uart1(false);
peris.set_usbctrl(false);
resets.unreset_wait(peris);
// xosc 12 mhz
pac::WATCHDOG.tick().write(|w| {
w.set_cycles(XOSC_MHZ as u16);
w.set_enable(true);
});
pac::CLOCKS
.clk_sys_resus_ctrl()
.write_value(pac::clocks::regs::ClkSysResusCtrl(0));
// Enable XOSC
// TODO extract to HAL module
const XOSC_MHZ: u32 = 12;
pac::XOSC
.ctrl()
.write(|w| w.set_freq_range(pac::xosc::vals::CtrlFreqRange::_1_15MHZ));
let startup_delay = (((XOSC_MHZ * 1_000_000) / 1000) + 128) / 256;
pac::XOSC
.startup()
.write(|w| w.set_delay(startup_delay as u16));
pac::XOSC.ctrl().write(|w| {
w.set_freq_range(pac::xosc::vals::CtrlFreqRange::_1_15MHZ);
w.set_enable(pac::xosc::vals::CtrlEnable::ENABLE);
});
while !pac::XOSC.status().read().stable() {}
// Before we touch PLLs, switch sys and ref cleanly away from their aux sources.
pac::CLOCKS
.clk_sys_ctrl()
.modify(|w| w.set_src(pac::clocks::vals::ClkSysCtrlSrc::CLK_REF));
while pac::CLOCKS.clk_sys_selected().read() != 1 {}
pac::CLOCKS
.clk_ref_ctrl()
.modify(|w| w.set_src(pac::clocks::vals::ClkRefCtrlSrc::ROSC_CLKSRC_PH));
while pac::CLOCKS.clk_ref_selected().read() != 1 {}
let mut peris = resets::Peripherals(0);
peris.set_pll_sys(true);
peris.set_pll_usb(true);
resets.reset(peris);
resets.unreset_wait(peris);
pll::PLL::new(pll::PllSys).configure(1, 1500_000_000, 6, 2);
pll::PLL::new(pll::PllUsb).configure(1, 480_000_000, 5, 2);
// Activate peripheral clock and take external oscillator as input
pac::CLOCKS.clk_peri_ctrl().write(|w| {
w.set_enable(true);
w.set_auxsrc(pac::clocks::vals::ClkPeriCtrlAuxsrc::XOSC_CLKSRC);
});
}

28
embassy-stm32-examples/.cargo/config.toml
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@@ -1,28 +0,0 @@
[target.'cfg(all(target_arch = "arm", target_os = "none"))']
runner = "probe-run --chip STM32F401CCUx"
rustflags = [
# LLD (shipped with the Rust toolchain) is used as the default linker
"-C", "link-arg=--nmagic",
"-C", "link-arg=-Tlink.x",
"-C", "link-arg=-Tdefmt.x",
# if you run into problems with LLD switch to the GNU linker by commenting out
# this line
# "-C", "linker=arm-none-eabi-ld",
# if you need to link to pre-compiled C libraries provided by a C toolchain
# use GCC as the linker by commenting out both lines above and then
# uncommenting the three lines below
# "-C", "linker=arm-none-eabi-gcc",
# "-C", "link-arg=-Wl,-Tlink.x",
# "-C", "link-arg=-nostartfiles",
# Code-size optimizations.
"-Z", "trap-unreachable=no",
"-C", "inline-threshold=5",
"-C", "no-vectorize-loops",
]
[build]
target = "thumbv7em-none-eabi"

53
embassy-stm32-examples/Cargo.toml
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@@ -1,53 +0,0 @@
[package]
authors = ["Dario Nieuwenhuis <dirbaio@dirbaio.net>"]
edition = "2018"
name = "embassy-stm32f4-examples"
version = "0.1.0"
[features]
default = [
"defmt-default",
]
defmt-default = []
defmt-trace = []
defmt-debug = []
defmt-info = []
defmt-warn = []
defmt-error = []
stm32f401 = ["embassy-stm32/stm32f401"]
stm32f405 = ["embassy-stm32/stm32f405"]
stm32f407 = ["embassy-stm32/stm32f407"]
stm32f410 = ["embassy-stm32/stm32f410"]
stm32f411 = ["embassy-stm32/stm32f411"]
stm32f412 = ["embassy-stm32/stm32f412"]
stm32f413 = ["embassy-stm32/stm32f413"]
stm32f415 = ["embassy-stm32/stm32f405"]
stm32f417 = ["embassy-stm32/stm32f407"]
stm32f423 = ["embassy-stm32/stm32f413"]
stm32f427 = ["embassy-stm32/stm32f427"]
stm32f429 = ["embassy-stm32/stm32f429"]
stm32f437 = ["embassy-stm32/stm32f427"]
stm32f439 = ["embassy-stm32/stm32f429"]
stm32f446 = ["embassy-stm32/stm32f446"]
stm32f469 = ["embassy-stm32/stm32f469"]
stm32f479 = ["embassy-stm32/stm32f469"]
[dependencies]
embassy = { version = "0.1.0", path = "../embassy", features = ["defmt", "defmt-trace"] }
embassy-traits = { version = "0.1.0", path = "../embassy-traits", features = ["defmt"] }
embassy-stm32 = { version = "0.1.0", path = "../embassy-stm32" }
embassy-extras = {version = "0.1.0", path = "../embassy-extras" }
defmt = "0.2.0"
defmt-rtt = "0.2.0"
cortex-m = "0.7.1"
cortex-m-rt = "0.6.13"
embedded-hal = { version = "0.2.4" }
panic-probe = { version = "0.2.0", features = ["print-defmt"] }
futures = { version = "0.3.8", default-features = false, features = ["async-await"] }
rtt-target = { version = "0.3", features = ["cortex-m"] }
bxcan = "0.5.0"
usb-device = "0.2.7"

31
embassy-stm32-examples/build.rs
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@@ -1,31 +0,0 @@
//! This build script copies the `memory.x` file from the crate root into
//! a directory where the linker can always find it at build time.
//! For many projects this is optional, as the linker always searches the
//! project root directory -- wherever `Cargo.toml` is. However, if you
//! are using a workspace or have a more complicated build setup, this
//! build script becomes required. Additionally, by requesting that
//! Cargo re-run the build script whenever `memory.x` is changed,
//! updating `memory.x` ensures a rebuild of the application with the
//! new memory settings.
use std::env;
use std::fs::File;
use std::io::Write;
use std::path::PathBuf;
fn main() {
// Put `memory.x` in our output directory and ensure it's
// on the linker search path.
let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
File::create(out.join("memory.x"))
.unwrap()
.write_all(include_bytes!("memory.x"))
.unwrap();
println!("cargo:rustc-link-search={}", out.display());
// By default, Cargo will re-run a build script whenever
// any file in the project changes. By specifying `memory.x`
// here, we ensure the build script is only re-run when
// `memory.x` is changed.
println!("cargo:rerun-if-changed=memory.x");
}

5
embassy-stm32-examples/memory.x
View File

@@ -1,5 +0,0 @@
MEMORY
{
FLASH : ORIGIN = 0x08000000, LENGTH = 64K
RAM : ORIGIN = 0x20000000, LENGTH = 32K
}

57
embassy-stm32-examples/src/bin/can.rs
View File

@@ -1,57 +0,0 @@
#![no_std]
#![no_main]
#![feature(trait_alias)]
#![feature(type_alias_impl_trait)]
#![feature(min_type_alias_impl_trait)]
#![feature(impl_trait_in_bindings)]
#[path = "../example_common.rs"]
mod example_common;
use example_common::{panic, *};
use bxcan::filter::Mask32;
use cortex_m_rt::entry;
use embassy::executor::Executor;
use embassy::util::Forever;
use embassy_stm32::hal::prelude::*;
use embassy_stm32::hal::{can::Can, stm32};
use embassy_stm32::{can, interrupt};
#[embassy::task]
async fn run(dp: stm32::Peripherals, _cp: cortex_m::Peripherals) {
let gpioa = dp.GPIOA.split();
let rx = gpioa.pa11.into_alternate_af9();
let tx = gpioa.pa12.into_alternate_af9();
let mut can = bxcan::Can::new(Can::new(dp.CAN1, (tx, rx)));
// APB1 (PCLK1): 24MHz, Bit rate: 20kBit/s, Sample Point 87.5%
// Value was calculated with http://www.bittiming.can-wiki.info/
can.modify_config().set_bit_timing(0x001c_004a);
// Configure filters so that can frames can be received.
can.modify_filters().enable_bank(0, Mask32::accept_all());
let mut can = can::Can::new(can, interrupt::take!(CAN1_TX), interrupt::take!(CAN1_RX0));
let _frame = can.receive().await;
}
static EXECUTOR: Forever<Executor> = Forever::new();
#[entry]
fn main() -> ! {
let dp = stm32::Peripherals::take().unwrap();
let cp = cortex_m::peripheral::Peripherals::take().unwrap();
dp.DBGMCU.cr.modify(|_, w| {
w.dbg_sleep().set_bit();
w.dbg_standby().set_bit();
w.dbg_stop().set_bit()
});
dp.RCC.ahb1enr.modify(|_, w| w.dma1en().enabled());
let executor = EXECUTOR.put(Executor::new());
executor.run(|spawner| {
unwrap!(spawner.spawn(run(dp, cp)));
});
}

57
embassy-stm32-examples/src/bin/exti.rs
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@@ -1,57 +0,0 @@
#![no_std]
#![no_main]
#![feature(trait_alias)]
#![feature(min_type_alias_impl_trait)]
#![feature(impl_trait_in_bindings)]
#![feature(type_alias_impl_trait)]
#[path = "../example_common.rs"]
mod example_common;
use example_common::{panic, *};
use cortex_m_rt::entry;
use embassy::executor::Executor;
use embassy::traits::gpio::*;
use embassy::util::Forever;
use embassy_stm32::exti::ExtiPin;
use embassy_stm32::hal::prelude::*;
use embassy_stm32::interrupt;
use embassy_stm32::pac as stm32;
use futures::pin_mut;
#[embassy::task]
async fn run(dp: stm32::Peripherals, _cp: cortex_m::Peripherals) {
let gpioa = dp.GPIOA.split();
let button = gpioa.pa0.into_pull_up_input();
let mut syscfg = dp.SYSCFG.constrain();
let mut pin = ExtiPin::new(button, interrupt::take!(EXTI0), &mut syscfg);
info!("Starting loop");
loop {
pin.wait_for_rising_edge().await;
info!("edge detected!");
}
}
static EXECUTOR: Forever<Executor> = Forever::new();
#[entry]
fn main() -> ! {
let dp = stm32::Peripherals::take().unwrap();
let cp = cortex_m::peripheral::Peripherals::take().unwrap();
dp.DBGMCU.cr.modify(|_, w| {
w.dbg_sleep().set_bit();
w.dbg_standby().set_bit();
w.dbg_stop().set_bit()
});
dp.RCC.ahb1enr.modify(|_, w| w.dma1en().enabled());
let executor = EXECUTOR.put(Executor::new());
executor.run(|spawner| {
unwrap!(spawner.spawn(run(dp, cp)));
});
}

42
embassy-stm32-examples/src/bin/hello.rs
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@@ -1,42 +0,0 @@
#![no_std]
#![no_main]
#![feature(trait_alias)]
#![feature(min_type_alias_impl_trait)]
#![feature(impl_trait_in_bindings)]
#![feature(type_alias_impl_trait)]
#[path = "../example_common.rs"]
mod example_common;
use example_common::*;
use cortex_m_rt::entry;
use embassy_stm32::hal::prelude::*;
#[entry]
fn main() -> ! {
info!("Hello World!");
let p = embassy_stm32::pac::Peripherals::take().unwrap();
p.DBGMCU.cr.modify(|_, w| {
w.dbg_sleep().set_bit();
w.dbg_standby().set_bit();
w.dbg_stop().set_bit()
});
p.RCC.ahb1enr.modify(|_, w| w.dma1en().enabled());
let gpioa = p.GPIOA.split();
let gpioc = p.GPIOC.split();
let mut led = gpioc.pc13.into_push_pull_output();
let button = gpioa.pa0.into_pull_up_input();
led.set_low().unwrap();
loop {
if button.is_high().unwrap() {
led.set_low().unwrap();
} else {
led.set_high().unwrap();
}
}
}

40
embassy-stm32-examples/src/bin/rtc_async.rs
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@@ -1,40 +0,0 @@
#![no_std]
#![no_main]
#![feature(min_type_alias_impl_trait)]
#![feature(impl_trait_in_bindings)]
#![feature(type_alias_impl_trait)]
#[path = "../example_common.rs"]
mod example_common;
use example_common::*;
use defmt::panic;
use embassy;
use embassy::executor::Spawner;
use embassy::time::{Duration, Timer};
use embassy_stm32;
use embassy_stm32::hal;
#[embassy::task]
async fn run1() {
loop {
info!("BIG INFREQUENT TICK");
Timer::after(Duration::from_ticks(32768 * 2 as u64)).await;
}
}
#[embassy::task]
async fn run2() {
loop {
info!("tick");
Timer::after(Duration::from_ticks(13000 as u64)).await;
}
}
#[embassy::main(config = "embassy_stm32::system::Config::new().use_hse(16)")]
async fn main(spawner: Spawner) {
let (dp, clocks) = embassy_stm32::Peripherals::take().unwrap();
spawner.spawn(run1()).unwrap();
}

80
embassy-stm32-examples/src/bin/serial.rs
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@@ -1,80 +0,0 @@
#![no_std]
#![no_main]
#![feature(trait_alias)]
#![feature(min_type_alias_impl_trait)]
#![feature(impl_trait_in_bindings)]
#![feature(type_alias_impl_trait)]
#[path = "../example_common.rs"]
mod example_common;
use example_common::{panic, *};
use cortex_m::singleton;
use cortex_m_rt::entry;
use embassy::executor::{Executor, Spawner};
use embassy::traits::uart::{Read, ReadUntilIdle, Write};
use embassy::util::Forever;
use embassy_stm32::hal::dma::StreamsTuple;
use embassy_stm32::hal::prelude::*;
use embassy_stm32::hal::serial::config::Config;
use embassy_stm32::interrupt;
use embassy_stm32::pac as stm32;
use embassy_stm32::serial;
use futures::pin_mut;
#[embassy::main(config = "embassy_stm32::system::Config::new().use_hse(16).sysclk(48).pclk1(24)")]
async fn main(spawner: Spawner) {
let (dp, clocks) = embassy_stm32::Peripherals::take().unwrap();
let cp = cortex_m::peripheral::Peripherals::take().unwrap();
dp.DBGMCU.cr.modify(|_, w| {
w.dbg_sleep().set_bit();
w.dbg_standby().set_bit();
w.dbg_stop().set_bit()
});
// https://gist.github.com/thalesfragoso/a07340c5df6eee3b04c42fdc69ecdcb1
let gpioa = dp.GPIOA.split();
let streams = StreamsTuple::new(dp.DMA2);
let _serial = unsafe {
serial::Serial::new(
dp.USART1,
(streams.7, streams.2),
(
gpioa.pa9.into_alternate_af7(),
gpioa.pa10.into_alternate_af7(),
),
interrupt::take!(DMA2_STREAM7),
interrupt::take!(DMA2_STREAM2),
interrupt::take!(USART1),
Config::default().baudrate(9600.bps()),
clocks,
)
};
let streams = StreamsTuple::new(dp.DMA1);
let mut serial = unsafe {
serial::Serial::new(
dp.USART2,
(streams.6, streams.5),
(
gpioa.pa2.into_alternate_af7(),
gpioa.pa3.into_alternate_af7(),
),
interrupt::take!(DMA1_STREAM6),
interrupt::take!(DMA1_STREAM5),
interrupt::take!(USART2),
Config::default().baudrate(9600.bps()),
clocks,
)
};
pin_mut!(serial);
let buf = singleton!(: [u8; 30] = [0; 30]).unwrap();
buf[5] = 0x01;
serial.as_mut().write(buf).await.unwrap();
serial.as_mut().read_until_idle(buf).await.unwrap();
}

119
embassy-stm32-examples/src/bin/usb_serial.rs
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@@ -1,119 +0,0 @@
#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
#![feature(min_type_alias_impl_trait)]
#![feature(impl_trait_in_bindings)]
#[path = "../example_common.rs"]
mod example_common;
use example_common::*;
use cortex_m_rt::entry;
use defmt::panic;
use embassy::executor::{Executor, Spawner};
use embassy::interrupt::InterruptExt;
use embassy::io::{AsyncBufReadExt, AsyncWriteExt};
use embassy::time::{Duration, Timer};
use embassy::util::Forever;
use embassy_extras::usb::usb_serial::UsbSerial;
use embassy_extras::usb::Usb;
use embassy_stm32::hal::otg_fs::{UsbBus, USB};
use embassy_stm32::hal::prelude::*;
use embassy_stm32::{interrupt, pac, rtc};
use futures::future::{select, Either};
use futures::pin_mut;
use usb_device::bus::UsbBusAllocator;
use usb_device::prelude::*;
#[embassy::task]
async fn run1(bus: &'static mut UsbBusAllocator<UsbBus<USB>>) {
info!("Async task");
let mut read_buf = [0u8; 128];
let mut write_buf = [0u8; 128];
let serial = UsbSerial::new(bus, &mut read_buf, &mut write_buf);
let device = UsbDeviceBuilder::new(bus, UsbVidPid(0x16c0, 0x27dd))
.manufacturer("Fake company")
.product("Serial port")
.serial_number("TEST")
.device_class(0x02)
.build();
let irq = interrupt::take!(OTG_FS);
irq.set_priority(interrupt::Priority::P3);
let usb = Usb::new(device, serial, irq);
pin_mut!(usb);
usb.as_mut().start();
let (mut read_interface, mut write_interface) = usb.as_ref().take_serial_0();
let mut buf = [0u8; 64];
loop {
let mut n = 0;
let left = {
let recv_fut = async {
loop {
let byte = unwrap!(read_interface.read_byte().await);
unwrap!(write_interface.write_byte(byte).await);
buf[n] = byte;
n += 1;
if byte == b'\n' || byte == b'\r' || n == buf.len() {
break;
}
}
};
pin_mut!(recv_fut);
let timeout = Timer::after(Duration::from_ticks(32768 * 10));
match select(recv_fut, timeout).await {
Either::Left(_) => true,
Either::Right(_) => false,
}
};
if left {
for c in buf[..n].iter_mut() {
if 0x61 <= *c && *c <= 0x7a {
*c &= !0x20;
}
}
unwrap!(write_interface.write_byte(b'\n').await);
unwrap!(write_interface.write_all(&buf[..n]).await);
unwrap!(write_interface.write_byte(b'\n').await);
} else {
unwrap!(write_interface.write_all(b"\r\nSend something\r\n").await);
}
}
}
static USB_BUS: Forever<UsbBusAllocator<UsbBus<USB>>> = Forever::new();
#[embassy::main(
config = "embassy_stm32::system::Config::new().use_hse(25).sysclk(48).require_pll48clk()"
)]
async fn main(spawner: Spawner) -> ! {
static mut EP_MEMORY: [u32; 1024] = [0; 1024];
info!("Hello World!");
let (p, clocks) = embassy_stm32::Peripherals::take().unwrap();
let gpioa = p.GPIOA.split();
let usb = USB {
usb_global: p.OTG_FS_GLOBAL,
usb_device: p.OTG_FS_DEVICE,
usb_pwrclk: p.OTG_FS_PWRCLK,
pin_dm: gpioa.pa11.into_alternate_af10(),
pin_dp: gpioa.pa12.into_alternate_af10(),
hclk: clocks.hclk(),
};
// Rust analyzer isn't recognizing the static ref magic `cortex-m` does
#[allow(unused_unsafe)]
let usb_bus = USB_BUS.put(UsbBus::new(usb, unsafe { &mut EP_MEMORY }));
spawner.spawn(run1(usb_bus)).unwrap();
}

17
embassy-stm32-examples/src/example_common.rs
View File

@@ -1,17 +0,0 @@
#![macro_use]
use defmt_rtt as _; // global logger
use panic_probe as _;
pub use defmt::*;
use core::sync::atomic::{AtomicUsize, Ordering};
defmt::timestamp! {"{=u64}", {
static COUNT: AtomicUsize = AtomicUsize::new(0);
// NOTE(no-CAS) `timestamps` runs with interrupts disabled
let n = COUNT.load(Ordering::Relaxed);
COUNT.store(n + 1, Ordering::Relaxed);
n as u64
}
}

53
embassy-stm32/Cargo.toml
View File

@@ -1,53 +0,0 @@
[package]
name = "embassy-stm32"
version = "0.1.0"
authors = ["Dario Nieuwenhuis <dirbaio@dirbaio.net>"]
edition = "2018"
[features]
defmt-trace = [ ]
defmt-debug = [ ]
defmt-info = [ ]
defmt-warn = [ ]
defmt-error = [ ]
stm32f401 = ["stm32f4xx-hal/stm32f401"]
stm32f405 = ["stm32f4xx-hal/stm32f405"]
stm32f407 = ["stm32f4xx-hal/stm32f407"]
stm32f410 = ["stm32f4xx-hal/stm32f410"]
stm32f411 = ["stm32f4xx-hal/stm32f411"]
stm32f412 = ["stm32f4xx-hal/stm32f412"]
stm32f413 = ["stm32f4xx-hal/stm32f413"]
stm32f415 = ["stm32f4xx-hal/stm32f405"]
stm32f417 = ["stm32f4xx-hal/stm32f407"]
stm32f423 = ["stm32f4xx-hal/stm32f413"]
stm32f427 = ["stm32f4xx-hal/stm32f427"]
stm32f429 = ["stm32f4xx-hal/stm32f429"]
stm32f437 = ["stm32f4xx-hal/stm32f427"]
stm32f439 = ["stm32f4xx-hal/stm32f429"]
stm32f446 = ["stm32f4xx-hal/stm32f446"]
stm32f469 = ["stm32f4xx-hal/stm32f469"]
stm32f479 = ["stm32f4xx-hal/stm32f469"]
stm32l0x1 = ["stm32l0xx-hal/stm32l0x1"]
stm32l0x2 = ["stm32l0xx-hal/stm32l0x2"]
stm32l0x3 = ["stm32l0xx-hal/stm32l0x3"]
[dependencies]
embassy = { version = "0.1.0", path = "../embassy" }
embassy-macros = { version = "0.1.0", path = "../embassy-macros", features = ["stm32"]}
embassy-extras = {version = "0.1.0", path = "../embassy-extras" }
atomic-polyfill = "0.1.1"
critical-section = "0.2.1"
defmt = { version = "0.2.0", optional = true }
log = { version = "0.4.11", optional = true }
cortex-m-rt = "0.6.13"
cortex-m = "0.7.1"
embedded-hal = { version = "0.2.4" }
embedded-dma = { version = "0.1.2" }
bxcan = "0.5.0"
nb = "*"
stm32f4xx-hal = { version = "0.9.0", features = ["rt", "can", "usb_fs"], optional = true }
stm32l0xx-hal = { version = "0.7.0", features = ["rt"], optional = true }
futures = { version = "0.3.5", default-features = false, features = ["async-await"] }

120
embassy-stm32/src/can.rs
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@@ -1,120 +0,0 @@
//! Async low power Serial.
//!
//! The peripheral is autmatically enabled and disabled as required to save power.
//! Lowest power consumption can only be guaranteed if the send receive futures
//! are dropped correctly (e.g. not using `mem::forget()`).
use bxcan;
use bxcan::Interrupts;
use core::future::Future;
use embassy::interrupt::Interrupt;
use embassy::util::InterruptFuture;
use nb;
use nb::block;
use crate::interrupt;
/// Interface to the Serial peripheral
pub struct Can<T: Instance> {
can: bxcan::Can<T>,
tx_int: T::TInterrupt,
rx_int: T::RInterrupt,
}
impl<T: Instance> Can<T> {
pub fn new(mut can: bxcan::Can<T>, tx_int: T::TInterrupt, rx_int: T::RInterrupt) -> Self {
// Sync to the bus and start normal operation.
can.enable_interrupts(
Interrupts::TRANSMIT_MAILBOX_EMPTY | Interrupts::FIFO0_MESSAGE_PENDING,
);
block!(can.enable()).unwrap();
Can {
can: can,
tx_int: tx_int,
rx_int: rx_int,
}
}
/// Sends can frame.
///
/// This method async-blocks until the frame is transmitted.
pub fn transmit<'a>(&'a mut self, frame: &'a bxcan::Frame) -> impl Future<Output = ()> + 'a {
async move {
let fut = InterruptFuture::new(&mut self.tx_int);
// Infallible
self.can.transmit(frame).unwrap();
fut.await;
}
}
/// Receive can frame.
///
/// This method async-blocks until the frame is received.
pub fn receive<'a>(&'a mut self) -> impl Future<Output = bxcan::Frame> + 'a {
async move {
let mut frame: Option<bxcan::Frame>;
loop {
let fut = InterruptFuture::new(&mut self.rx_int);
frame = match self.can.receive() {
Ok(frame) => Some(frame),
Err(nb::Error::WouldBlock) => None,
Err(nb::Error::Other(_)) => None, // Ignore overrun errors.
};
if frame.is_some() {
break;
}
fut.await;
}
frame.unwrap()
}
}
}
mod private {
pub trait Sealed {}
}
pub trait Instance: bxcan::Instance + private::Sealed {
type TInterrupt: Interrupt;
type RInterrupt: Interrupt;
}
macro_rules! can {
($($can:ident => ($tint:ident, $rint:ident),)+) => {
$(
impl private::Sealed for crate::hal::can::Can<crate::pac::$can> {}
impl Instance for crate::hal::can::Can<crate::pac::$can> {
type TInterrupt = interrupt::$tint;
type RInterrupt = interrupt::$rint;
}
)+
}
}
#[cfg(any(
feature = "stm32f401",
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f410",
feature = "stm32f411",
feature = "stm32f412",
feature = "stm32f413",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f423",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f446",
feature = "stm32f469",
feature = "stm32f479",
))]
can! {
CAN1 => (CAN1_TX, CAN1_RX0),
CAN2 => (CAN2_TX, CAN2_RX0),
}

790
embassy-stm32/src/exti.rs
View File

@@ -1,790 +0,0 @@
use core::future::Future;
use core::mem;
use cortex_m;
use crate::hal::gpio;
#[cfg(any(
feature = "stm32f401",
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f410",
feature = "stm32f411",
feature = "stm32f412",
feature = "stm32f413",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f423",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f446",
feature = "stm32f469",
feature = "stm32f479",
))]
use crate::hal::syscfg::SysCfg;
#[cfg(any(feature = "stm32l0x1", feature = "stm32l0x2", feature = "stm32l0x3",))]
use crate::hal::syscfg::SYSCFG as SysCfg;
use embassy::traits::gpio::{
WaitForAnyEdge, WaitForFallingEdge, WaitForHigh, WaitForLow, WaitForRisingEdge,
};
use embassy::util::InterruptFuture;
use embedded_hal::digital::v2 as digital;
use crate::interrupt;
pub struct ExtiPin<T: Instance> {
pin: T,
interrupt: T::Interrupt,
}
impl<T: Instance> ExtiPin<T> {
pub fn new(mut pin: T, interrupt: T::Interrupt, syscfg: &mut SysCfg) -> Self {
critical_section::with(|_| {
pin.make_source(syscfg);
});
Self { pin, interrupt }
}
}
impl<T: Instance + digital::OutputPin> digital::OutputPin for ExtiPin<T> {
type Error = T::Error;
fn set_low(&mut self) -> Result<(), Self::Error> {
self.pin.set_low()
}
fn set_high(&mut self) -> Result<(), Self::Error> {
self.pin.set_high()
}
}
impl<T: Instance + digital::StatefulOutputPin> digital::StatefulOutputPin for ExtiPin<T> {
fn is_set_low(&self) -> Result<bool, Self::Error> {
self.pin.is_set_low()
}
fn is_set_high(&self) -> Result<bool, Self::Error> {
self.pin.is_set_high()
}
}
impl<T: Instance + digital::ToggleableOutputPin> digital::ToggleableOutputPin for ExtiPin<T> {
type Error = T::Error;
fn toggle(&mut self) -> Result<(), Self::Error> {
self.pin.toggle()
}
}
impl<T: Instance + digital::InputPin> digital::InputPin for ExtiPin<T> {
type Error = T::Error;
fn is_high(&self) -> Result<bool, Self::Error> {
self.pin.is_high()
}
fn is_low(&self) -> Result<bool, Self::Error> {
self.pin.is_low()
}
}
impl<T: Instance + digital::InputPin + 'static> ExtiPin<T> {
fn wait_for_state<'a>(&'a mut self, state: bool) -> impl Future<Output = ()> + 'a {
async move {
let fut = InterruptFuture::new(&mut self.interrupt);
let pin = &mut self.pin;
critical_section::with(|_| {
pin.trigger_edge(if state {
EdgeOption::Rising
} else {
EdgeOption::Falling
});
});
if (state && self.pin.is_high().unwrap_or(false))
|| (!state && self.pin.is_low().unwrap_or(false))
{
return;
}
fut.await;
self.pin.clear_pending_bit();
}
}
}
impl<T: Instance + 'static> ExtiPin<T> {
fn wait_for_edge<'a>(&'a mut self, state: EdgeOption) -> impl Future<Output = ()> + 'a {
self.pin.clear_pending_bit();
async move {
let fut = InterruptFuture::new(&mut self.interrupt);
let pin = &mut self.pin;
critical_section::with(|_| {
pin.trigger_edge(state);
});
fut.await;
self.pin.clear_pending_bit();
}
}
}
impl<T: Instance + digital::InputPin + 'static> WaitForHigh for ExtiPin<T> {
type Future<'a> = impl Future<Output = ()> + 'a;
fn wait_for_high<'a>(&'a mut self) -> Self::Future<'a> {
self.wait_for_state(true)
}
}
impl<T: Instance + digital::InputPin + 'static> WaitForLow for ExtiPin<T> {
type Future<'a> = impl Future<Output = ()> + 'a;
fn wait_for_low<'a>(&'a mut self) -> Self::Future<'a> {
self.wait_for_state(false)
}
}
/*
Irq Handler Description
EXTI0_IRQn EXTI0_IRQHandler Handler for pins connected to line 0
EXTI1_IRQn EXTI1_IRQHandler Handler for pins connected to line 1
EXTI2_IRQn EXTI2_IRQHandler Handler for pins connected to line 2
EXTI3_IRQn EXTI3_IRQHandler Handler for pins connected to line 3
EXTI4_IRQn EXTI4_IRQHandler Handler for pins connected to line 4
EXTI9_5_IRQn EXTI9_5_IRQHandler Handler for pins connected to line 5 to 9
EXTI15_10_IRQn EXTI15_10_IRQHandler Handler for pins connected to line 10 to 15
*/
impl<T: Instance + 'static> WaitForRisingEdge for ExtiPin<T> {
type Future<'a> = impl Future<Output = ()> + 'a;
fn wait_for_rising_edge<'a>(&'a mut self) -> Self::Future<'a> {
self.wait_for_edge(EdgeOption::Rising)
}
}
impl<T: Instance + 'static> WaitForFallingEdge for ExtiPin<T> {
type Future<'a> = impl Future<Output = ()> + 'a;
fn wait_for_falling_edge<'a>(&'a mut self) -> Self::Future<'a> {
self.wait_for_edge(EdgeOption::Falling)
}
}
impl<T: Instance + 'static> WaitForAnyEdge for ExtiPin<T> {
type Future<'a> = impl Future<Output = ()> + 'a;
fn wait_for_any_edge<'a>(&'a mut self) -> Self::Future<'a> {
self.wait_for_edge(EdgeOption::RisingFalling)
}
}
mod private {
pub trait Sealed {}
}
#[derive(Copy, Clone)]
pub enum EdgeOption {
Rising,
Falling,
RisingFalling,
}
pub trait WithInterrupt: private::Sealed {
type Interrupt: interrupt::Interrupt;
}
pub trait Instance: WithInterrupt {
fn make_source(&mut self, syscfg: &mut SysCfg);
fn clear_pending_bit(&mut self);
fn trigger_edge(&mut self, edge: EdgeOption);
}
macro_rules! exti {
($set:ident, [
$($INT:ident => $pin:ident,)+
]) => {
$(
impl<T> private::Sealed for gpio::$set::$pin<T> {}
impl<T> WithInterrupt for gpio::$set::$pin<T> {
type Interrupt = interrupt::$INT;
}
#[cfg(any(
feature = "stm32f401",
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f410",
feature = "stm32f411",
feature = "stm32f412",
feature = "stm32f413",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f423",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f446",
feature = "stm32f469",
feature = "stm32f479",
))]
impl<T> Instance for gpio::$set::$pin<gpio::Input<T>> {
fn make_source(&mut self, syscfg: &mut SysCfg) {
use crate::hal::gpio::ExtiPin;
self.make_interrupt_source(syscfg);
}
fn clear_pending_bit(&mut self) {
use crate::hal::{gpio::Edge, gpio::ExtiPin, syscfg::SysCfg};
self.clear_interrupt_pending_bit();
}
fn trigger_edge(&mut self, edge: EdgeOption) {
use crate::hal::{gpio::Edge, gpio::ExtiPin, syscfg::SysCfg};
use crate::pac::EXTI;
let mut exti: EXTI = unsafe { mem::transmute(()) };
let edge = match edge {
EdgeOption::Falling => Edge::FALLING,
EdgeOption::Rising => Edge::RISING,
EdgeOption::RisingFalling => Edge::RISING_FALLING,
};
self.trigger_on_edge(&mut exti, edge);
self.enable_interrupt(&mut exti);
}
}
#[cfg(any(feature = "stm32l0x1", feature = "stm32l0x2", feature = "stm32l0x3",))]
impl<T> Instance for gpio::$set::$pin<T> {
fn make_source(&mut self, syscfg: &mut SysCfg) {}
fn clear_pending_bit(&mut self) {
use crate::hal::{
exti::{Exti, ExtiLine, GpioLine, TriggerEdge},
syscfg::SYSCFG,
};
Exti::unpend(GpioLine::from_raw_line(self.pin_number()).unwrap());
}
fn trigger_edge(&mut self, edge: EdgeOption) {
use crate::hal::{
exti::{Exti, ExtiLine, GpioLine, TriggerEdge},
syscfg::SYSCFG,
};
use crate::pac::EXTI;
let edge = match edge {
EdgeOption::Falling => TriggerEdge::Falling,
EdgeOption::Rising => TriggerEdge::Rising,
EdgeOption::RisingFalling => TriggerEdge::Both,
};
let exti: EXTI = unsafe { mem::transmute(()) };
let mut exti = Exti::new(exti);
let port = self.port();
let mut syscfg: SYSCFG = unsafe { mem::transmute(()) };
let line = GpioLine::from_raw_line(self.pin_number()).unwrap();
exti.listen_gpio(&mut syscfg, port, line, edge);
}
}
)+
};
}
#[cfg(any(
feature = "stm32f401",
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f410",
feature = "stm32f411",
feature = "stm32f412",
feature = "stm32f413",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f423",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f446",
feature = "stm32f469",
feature = "stm32f479"
))]
exti!(gpioa, [
EXTI0 => PA0,
EXTI1 => PA1,
EXTI2 => PA2,
EXTI3 => PA3,
EXTI4 => PA4,
EXTI9_5 => PA5,
EXTI9_5 => PA6,
EXTI9_5 => PA7,
EXTI9_5 => PA8,
EXTI9_5 => PA9,
EXTI15_10 => PA10,
EXTI15_10 => PA11,
EXTI15_10 => PA12,
EXTI15_10 => PA13,
EXTI15_10 => PA14,
EXTI15_10 => PA15,
]);
#[cfg(any(
feature = "stm32f401",
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f410",
feature = "stm32f411",
feature = "stm32f412",
feature = "stm32f413",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f423",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f446",
feature = "stm32f469",
feature = "stm32f479"
))]
exti!(gpiob, [
EXTI0 => PB0,
EXTI1 => PB1,
EXTI2 => PB2,
EXTI3 => PB3,
EXTI4 => PB4,
EXTI9_5 => PB5,
EXTI9_5 => PB6,
EXTI9_5 => PB7,
EXTI9_5 => PB8,
EXTI9_5 => PB9,
EXTI15_10 => PB10,
EXTI15_10 => PB11,
EXTI15_10 => PB12,
EXTI15_10 => PB13,
EXTI15_10 => PB14,
EXTI15_10 => PB15,
]);
#[cfg(any(
feature = "stm32f401",
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f410",
feature = "stm32f411",
feature = "stm32f412",
feature = "stm32f413",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f423",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f446",
feature = "stm32f469",
feature = "stm32f479"
))]
exti!(gpioc, [
EXTI0 => PC0,
EXTI1 => PC1,
EXTI2 => PC2,
EXTI3 => PC3,
EXTI4 => PC4,
EXTI9_5 => PC5,
EXTI9_5 => PC6,
EXTI9_5 => PC7,
EXTI9_5 => PC8,
EXTI9_5 => PC9,
EXTI15_10 => PC10,
EXTI15_10 => PC11,
EXTI15_10 => PC12,
EXTI15_10 => PC13,
EXTI15_10 => PC14,
EXTI15_10 => PC15,
]);
#[cfg(any(
feature = "stm32f401",
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f411",
feature = "stm32f412",
feature = "stm32f413",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f423",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f446",
feature = "stm32f469",
feature = "stm32f479"
))]
exti!(gpiod, [
EXTI0 => PD0,
EXTI1 => PD1,
EXTI2 => PD2,
EXTI3 => PD3,
EXTI4 => PD4,
EXTI9_5 => PD5,
EXTI9_5 => PD6,
EXTI9_5 => PD7,
EXTI9_5 => PD8,
EXTI9_5 => PD9,
EXTI15_10 => PD10,
EXTI15_10 => PD11,
EXTI15_10 => PD12,
EXTI15_10 => PD13,
EXTI15_10 => PD14,
EXTI15_10 => PD15,
]);
#[cfg(any(
feature = "stm32f401",
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f411",
feature = "stm32f412",
feature = "stm32f413",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f423",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f446",
feature = "stm32f469",
feature = "stm32f479"
))]
exti!(gpioe, [
EXTI0 => PE0,
EXTI1 => PE1,
EXTI2 => PE2,
EXTI3 => PE3,
EXTI4 => PE4,
EXTI9_5 => PE5,
EXTI9_5 => PE6,
EXTI9_5 => PE7,
EXTI9_5 => PE8,
EXTI9_5 => PE9,
EXTI15_10 => PE10,
EXTI15_10 => PE11,
EXTI15_10 => PE12,
EXTI15_10 => PE13,
EXTI15_10 => PE14,
EXTI15_10 => PE15,
]);
#[cfg(any(
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f412",
feature = "stm32f413",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f423",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f446",
feature = "stm32f469",
feature = "stm32f479"
))]
exti!(gpiof, [
EXTI0 => PF0,
EXTI1 => PF1,
EXTI2 => PF2,
EXTI3 => PF3,
EXTI4 => PF4,
EXTI9_5 => PF5,
EXTI9_5 => PF6,
EXTI9_5 => PF7,
EXTI9_5 => PF8,
EXTI9_5 => PF9,
EXTI15_10 => PF10,
EXTI15_10 => PF11,
EXTI15_10 => PF12,
EXTI15_10 => PF13,
EXTI15_10 => PF14,
EXTI15_10 => PF15,
]);
#[cfg(any(
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f412",
feature = "stm32f413",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f423",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f446",
feature = "stm32f469",
feature = "stm32f479"
))]
exti!(gpiog, [
EXTI0 => PG0,
EXTI1 => PG1,
EXTI2 => PG2,
EXTI3 => PG3,
EXTI4 => PG4,
EXTI9_5 => PG5,
EXTI9_5 => PG6,
EXTI9_5 => PG7,
EXTI9_5 => PG8,
EXTI9_5 => PG9,
EXTI15_10 => PG10,
EXTI15_10 => PG11,
EXTI15_10 => PG12,
EXTI15_10 => PG13,
EXTI15_10 => PG14,
EXTI15_10 => PG15,
]);
#[cfg(any(
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f410",
feature = "stm32f411",
feature = "stm32f412",
feature = "stm32f413",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f423",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f446",
feature = "stm32f469",
feature = "stm32f479"
))]
exti!(gpioh, [
EXTI0 => PH0,
EXTI1 => PH1,
EXTI2 => PH2,
EXTI3 => PH3,
EXTI4 => PH4,
EXTI9_5 => PH5,
EXTI9_5 => PH6,
EXTI9_5 => PH7,
EXTI9_5 => PH8,
EXTI9_5 => PH9,
EXTI15_10 => PH10,
EXTI15_10 => PH11,
EXTI15_10 => PH12,
EXTI15_10 => PH13,
EXTI15_10 => PH14,
EXTI15_10 => PH15,
]);
#[cfg(any(feature = "stm32f401"))]
exti!(gpioh, [
EXTI0 => PH0,
EXTI1 => PH1,
]);
#[cfg(any(
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f469",
feature = "stm32f479"
))]
exti!(gpioi, [
EXTI0 => PI0,
EXTI1 => PI1,
EXTI2 => PI2,
EXTI3 => PI3,
EXTI4 => PI4,
EXTI9_5 => PI5,
EXTI9_5 => PI6,
EXTI9_5 => PI7,
EXTI9_5 => PI8,
EXTI9_5 => PI9,
EXTI15_10 => PI10,
EXTI15_10 => PI11,
EXTI15_10 => PI12,
EXTI15_10 => PI13,
EXTI15_10 => PI14,
EXTI15_10 => PI15,
]);
#[cfg(any(
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f469",
feature = "stm32f479"
))]
exti!(gpioj, [
EXTI0 => PJ0,
EXTI1 => PJ1,
EXTI2 => PJ2,
EXTI3 => PJ3,
EXTI4 => PJ4,
EXTI9_5 => PJ5,
EXTI9_5 => PJ6,
EXTI9_5 => PJ7,
EXTI9_5 => PJ8,
EXTI9_5 => PJ9,
EXTI15_10 => PJ10,
EXTI15_10 => PJ11,
EXTI15_10 => PJ12,
EXTI15_10 => PJ13,
EXTI15_10 => PJ14,
EXTI15_10 => PJ15,
]);
#[cfg(any(
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f469",
feature = "stm32f479"
))]
exti!(gpiok, [
EXTI0 => PK0,
EXTI1 => PK1,
EXTI2 => PK2,
EXTI3 => PK3,
EXTI4 => PK4,
EXTI9_5 => PK5,
EXTI9_5 => PK6,
EXTI9_5 => PK7,
]);
#[cfg(any(feature = "stm32l0x1", feature = "stm32l0x2", feature = "stm32l0x3",))]
exti!(gpioa, [
EXTI0_1 => PA0,
EXTI0_1 => PA1,
EXTI2_3 => PA2,
EXTI2_3 => PA3,
EXTI4_15 => PA4,
EXTI4_15 => PA5,
EXTI4_15 => PA6,
EXTI4_15 => PA7,
EXTI4_15 => PA8,
EXTI4_15 => PA9,
EXTI4_15 => PA10,
EXTI4_15 => PA11,
EXTI4_15 => PA12,
EXTI4_15 => PA13,
EXTI4_15 => PA14,
EXTI4_15 => PA15,
]);
#[cfg(any(feature = "stm32l0x1", feature = "stm32l0x2", feature = "stm32l0x3",))]
exti!(gpiob, [
EXTI0_1 => PB0,
EXTI0_1 => PB1,
EXTI2_3 => PB2,
EXTI2_3 => PB3,
EXTI4_15 => PB4,
EXTI4_15 => PB5,
EXTI4_15 => PB6,
EXTI4_15 => PB7,
EXTI4_15 => PB8,
EXTI4_15 => PB9,
EXTI4_15 => PB10,
EXTI4_15 => PB11,
EXTI4_15 => PB12,
EXTI4_15 => PB13,
EXTI4_15 => PB14,
EXTI4_15 => PB15,
]);
#[cfg(any(feature = "stm32l0x1", feature = "stm32l0x2", feature = "stm32l0x3",))]
exti!(gpioc, [
EXTI0_1 => PC0,
EXTI0_1 => PC1,
EXTI2_3 => PC2,
EXTI2_3 => PC3,
EXTI4_15 => PC4,
EXTI4_15 => PC5,
EXTI4_15 => PC6,
EXTI4_15 => PC7,
EXTI4_15 => PC8,
EXTI4_15 => PC9,
EXTI4_15 => PC10,
EXTI4_15 => PC11,
EXTI4_15 => PC12,
EXTI4_15 => PC13,
EXTI4_15 => PC14,
EXTI4_15 => PC15,
]);
#[cfg(any(feature = "stm32l0x1", feature = "stm32l0x2", feature = "stm32l0x3",))]
exti!(gpiod, [
EXTI0_1 => PD0,
EXTI0_1 => PD1,
EXTI2_3 => PD2,
EXTI2_3 => PD3,
EXTI4_15 => PD4,
EXTI4_15 => PD5,
EXTI4_15 => PD6,
EXTI4_15 => PD7,
EXTI4_15 => PD8,
EXTI4_15 => PD9,
EXTI4_15 => PD10,
EXTI4_15 => PD11,
EXTI4_15 => PD12,
EXTI4_15 => PD13,
EXTI4_15 => PD14,
EXTI4_15 => PD15,
]);
#[cfg(any(feature = "stm32l0x1", feature = "stm32l0x2", feature = "stm32l0x3",))]
exti!(gpioe, [
EXTI0_1 => PE0,
EXTI0_1 => PE1,
EXTI2_3 => PE2,
EXTI2_3 => PE3,
EXTI4_15 => PE4,
EXTI4_15 => PE5,
EXTI4_15 => PE6,
EXTI4_15 => PE7,
EXTI4_15 => PE8,
EXTI4_15 => PE9,
EXTI4_15 => PE10,
EXTI4_15 => PE11,
EXTI4_15 => PE12,
EXTI4_15 => PE13,
EXTI4_15 => PE14,
EXTI4_15 => PE15,
]);
#[cfg(any(feature = "stm32l0x1", feature = "stm32l0x2", feature = "stm32l0x3",))]
exti!(gpioh, [
EXTI0_1 => PH0,
EXTI0_1 => PH1,
EXTI4_15 => PH9,
EXTI4_15 => PH10,
]);

4
embassy-stm32/src/f4/mod.rs
View File

@@ -1,4 +0,0 @@
pub mod rtc;
pub mod serial;
pub mod spi;
pub mod system;

505
embassy-stm32/src/f4/rtc.rs
View File

@@ -1,505 +0,0 @@
use crate::hal::bb;
use crate::hal::rcc::Clocks;
use core::cell::Cell;
use core::convert::TryInto;
use core::sync::atomic::{compiler_fence, AtomicU32, Ordering};
use critical_section::CriticalSection;
use embassy::interrupt::InterruptExt;
use embassy::time::{Clock, TICKS_PER_SECOND};
use embassy::util::CriticalSectionMutex as Mutex;
use crate::interrupt;
use crate::interrupt::Interrupt;
// RTC timekeeping works with something we call "periods", which are time intervals
// of 2^15 ticks. The RTC counter value is 16 bits, so one "overflow cycle" is 2 periods.
//
// A `period` count is maintained in parallel to the RTC hardware `counter`, like this:
// - `period` and `counter` start at 0
// - `period` is incremented on overflow (at counter value 0)
// - `period` is incremented "midway" between overflows (at counter value 0x8000)
//
// Therefore, when `period` is even, counter is in 0..0x7FFF. When odd, counter is in 0x8000..0xFFFF
// This allows for now() to return the correct value even if it races an overflow.
//
// To get `now()`, `period` is read first, then `counter` is read. If the counter value matches
// the expected range for the `period` parity, we're done. If it doesn't, this means that
// a new period start has raced us between reading `period` and `counter`, so we assume the `counter` value
// corresponds to the next period.
//
// `period` is a 32bit integer, so It overflows on 2^32 * 2^15 / 32768 seconds of uptime, which is 136 years.
fn calc_now(period: u32, counter: u16) -> u64 {
((period as u64) << 15) + ((counter as u32 ^ ((period & 1) << 15)) as u64)
}
struct AlarmState {
timestamp: Cell<u64>,
callback: Cell<Option<(fn(*mut ()), *mut ())>>,
}
impl AlarmState {
fn new() -> Self {
Self {
timestamp: Cell::new(u64::MAX),
callback: Cell::new(None),
}
}
}
// TODO: This is sometimes wasteful, try to find a better way
const ALARM_COUNT: usize = 3;
/// RTC timer that can be used by the executor and to set alarms.
///
/// It can work with Timers 2, 3, 4, 5, 9 and 12. Timers 9 and 12 only have one alarm available,
/// while the others have three each.
/// This timer works internally with a unit of 2^15 ticks, which means that if a call to
/// [`embassy::time::Clock::now`] is blocked for that amount of ticks the returned value will be
/// wrong (an old value). The current default tick rate is 32768 ticks per second.
pub struct RTC<T: Instance> {
rtc: T,
irq: T::Interrupt,
/// Number of 2^23 periods elapsed since boot.
period: AtomicU32,
/// Timestamp at which to fire alarm. u64::MAX if no alarm is scheduled.
alarms: Mutex<[AlarmState; ALARM_COUNT]>,
clocks: Clocks,
}
impl<T: Instance> RTC<T> {
pub fn new(rtc: T, irq: T::Interrupt, clocks: Clocks) -> Self {
Self {
rtc,
irq,
period: AtomicU32::new(0),
alarms: Mutex::new([AlarmState::new(), AlarmState::new(), AlarmState::new()]),
clocks,
}
}
pub fn start(&'static self) {
self.rtc.enable_clock();
self.rtc.stop_and_reset();
let multiplier = if T::ppre(&self.clocks) == 1 { 1 } else { 2 };
let freq = T::pclk(&self.clocks) * multiplier;
let psc = freq / TICKS_PER_SECOND as u32 - 1;
let psc: u16 = psc.try_into().unwrap();
self.rtc.set_psc_arr(psc, u16::MAX);
// Mid-way point
self.rtc.set_compare(0, 0x8000);
self.rtc.set_compare_interrupt(0, true);
self.irq.set_handler(|ptr| unsafe {
let this = &*(ptr as *const () as *const Self);
this.on_interrupt();
});
self.irq.set_handler_context(self as *const _ as *mut _);
self.irq.unpend();
self.irq.enable();
self.rtc.start();
}
fn on_interrupt(&self) {
if self.rtc.overflow_interrupt_status() {
self.rtc.overflow_clear_flag();
self.next_period();
}
// Half overflow
if self.rtc.compare_interrupt_status(0) {
self.rtc.compare_clear_flag(0);
self.next_period();
}
for n in 1..=ALARM_COUNT {
if self.rtc.compare_interrupt_status(n) {
self.rtc.compare_clear_flag(n);
critical_section::with(|cs| self.trigger_alarm(n, cs));
}
}
}
fn next_period(&self) {
critical_section::with(|cs| {
let period = self.period.fetch_add(1, Ordering::Relaxed) + 1;
let t = (period as u64) << 15;
for n in 1..=ALARM_COUNT {
let alarm = &self.alarms.borrow(cs)[n - 1];
let at = alarm.timestamp.get();
let diff = at - t;
if diff < 0xc000 {
self.rtc.set_compare(n, at as u16);
self.rtc.set_compare_interrupt(n, true);
}
}
})
}
fn trigger_alarm(&self, n: usize, cs: CriticalSection) {
self.rtc.set_compare_interrupt(n, false);
let alarm = &self.alarms.borrow(cs)[n - 1];
alarm.timestamp.set(u64::MAX);
// Call after clearing alarm, so the callback can set another alarm.
if let Some((f, ctx)) = alarm.callback.get() {
f(ctx);
}
}
fn set_alarm_callback(&self, n: usize, callback: fn(*mut ()), ctx: *mut ()) {
critical_section::with(|cs| {
let alarm = &self.alarms.borrow(cs)[n - 1];
alarm.callback.set(Some((callback, ctx)));
})
}
fn set_alarm(&self, n: usize, timestamp: u64) {
critical_section::with(|cs| {
let alarm = &self.alarms.borrow(cs)[n - 1];
alarm.timestamp.set(timestamp);
let t = self.now();
if timestamp <= t {
self.trigger_alarm(n, cs);
return;
}
let diff = timestamp - t;
if diff < 0xc000 {
let safe_timestamp = timestamp.max(t + 3);
self.rtc.set_compare(n, safe_timestamp as u16);
self.rtc.set_compare_interrupt(n, true);
} else {
self.rtc.set_compare_interrupt(n, false);
}
})
}
pub fn alarm1(&'static self) -> Alarm<T> {
Alarm { n: 1, rtc: self }
}
pub fn alarm2(&'static self) -> Option<Alarm<T>> {
if T::REAL_ALARM_COUNT >= 2 {
Some(Alarm { n: 2, rtc: self })
} else {
None
}
}
pub fn alarm3(&'static self) -> Option<Alarm<T>> {
if T::REAL_ALARM_COUNT >= 3 {
Some(Alarm { n: 3, rtc: self })
} else {
None
}
}
}
impl<T: Instance> embassy::time::Clock for RTC<T> {
fn now(&self) -> u64 {
let period = self.period.load(Ordering::Relaxed);
compiler_fence(Ordering::Acquire);
let counter = self.rtc.counter();
calc_now(period, counter)
}
}
pub struct Alarm<T: Instance> {
n: usize,
rtc: &'static RTC<T>,
}
impl<T: Instance> embassy::time::Alarm for Alarm<T> {
fn set_callback(&self, callback: fn(*mut ()), ctx: *mut ()) {
self.rtc.set_alarm_callback(self.n, callback, ctx);
}
fn set(&self, timestamp: u64) {
self.rtc.set_alarm(self.n, timestamp);
}
fn clear(&self) {
self.rtc.set_alarm(self.n, u64::MAX);
}
}
mod sealed {
pub trait Sealed {}
}
pub trait Instance: sealed::Sealed + Sized + 'static {
type Interrupt: Interrupt;
const REAL_ALARM_COUNT: usize;
fn enable_clock(&self);
fn set_compare(&self, n: usize, value: u16);
fn set_compare_interrupt(&self, n: usize, enable: bool);
fn compare_interrupt_status(&self, n: usize) -> bool;
fn compare_clear_flag(&self, n: usize);
fn overflow_interrupt_status(&self) -> bool;
fn overflow_clear_flag(&self);
// This method should ensure that the values are really updated before returning
fn set_psc_arr(&self, psc: u16, arr: u16);
fn stop_and_reset(&self);
fn start(&self);
fn counter(&self) -> u16;
fn ppre(clocks: &Clocks) -> u8;
fn pclk(clocks: &Clocks) -> u32;
}
#[allow(unused_macros)]
macro_rules! impl_timer {
($module:ident: ($TYPE:ident, $INT:ident, $apbenr:ident, $enrbit:expr, $apbrstr:ident, $rstrbit:expr, $ppre:ident, $pclk: ident), 3) => {
mod $module {
use super::*;
use crate::hal::pac::{$TYPE, RCC};
impl sealed::Sealed for $TYPE {}
impl Instance for $TYPE {
type Interrupt = interrupt::$INT;
const REAL_ALARM_COUNT: usize = 3;
fn enable_clock(&self) {
// NOTE(unsafe) It will only be used for atomic operations
unsafe {
let rcc = &*RCC::ptr();
bb::set(&rcc.$apbenr, $enrbit);
bb::set(&rcc.$apbrstr, $rstrbit);
bb::clear(&rcc.$apbrstr, $rstrbit);
}
}
fn set_compare(&self, n: usize, value: u16) {
// NOTE(unsafe) these registers accept all the range of u16 values
match n {
0 => self.ccr1.write(|w| unsafe { w.bits(value.into()) }),
1 => self.ccr2.write(|w| unsafe { w.bits(value.into()) }),
2 => self.ccr3.write(|w| unsafe { w.bits(value.into()) }),
3 => self.ccr4.write(|w| unsafe { w.bits(value.into()) }),
_ => {}
}
}
fn set_compare_interrupt(&self, n: usize, enable: bool) {
if n > 3 {
return;
}
let bit = n as u8 + 1;
unsafe {
if enable {
bb::set(&self.dier, bit);
} else {
bb::clear(&self.dier, bit);
}
}
}
fn compare_interrupt_status(&self, n: usize) -> bool {
let status = self.sr.read();
match n {
0 => status.cc1if().bit_is_set(),
1 => status.cc2if().bit_is_set(),
2 => status.cc3if().bit_is_set(),
3 => status.cc4if().bit_is_set(),
_ => false,
}
}
fn compare_clear_flag(&self, n: usize) {
if n > 3 {
return;
}
let bit = n as u8 + 1;
unsafe {
bb::clear(&self.sr, bit);
}
}
fn overflow_interrupt_status(&self) -> bool {
self.sr.read().uif().bit_is_set()
}
fn overflow_clear_flag(&self) {
unsafe {
bb::clear(&self.sr, 0);
}
}
fn set_psc_arr(&self, psc: u16, arr: u16) {
// NOTE(unsafe) All u16 values are valid
self.psc.write(|w| unsafe { w.bits(psc.into()) });
self.arr.write(|w| unsafe { w.bits(arr.into()) });
unsafe {
// Set URS, generate update, clear URS
bb::set(&self.cr1, 2);
self.egr.write(|w| w.ug().set_bit());
bb::clear(&self.cr1, 2);
}
}
fn stop_and_reset(&self) {
unsafe {
bb::clear(&self.cr1, 0);
}
self.cnt.reset();
}
fn start(&self) {
unsafe { bb::set(&self.cr1, 0) }
}
fn counter(&self) -> u16 {
self.cnt.read().bits() as u16
}
fn ppre(clocks: &Clocks) -> u8 {
clocks.$ppre()
}
fn pclk(clocks: &Clocks) -> u32 {
clocks.$pclk().0
}
}
}
};
($module:ident: ($TYPE:ident, $INT:ident, $apbenr:ident, $enrbit:expr, $apbrstr:ident, $rstrbit:expr, $ppre:ident, $pclk: ident), 1) => {
mod $module {
use super::*;
use crate::hal::pac::{$TYPE, RCC};
impl sealed::Sealed for $TYPE {}
impl Instance for $TYPE {
type Interrupt = interrupt::$INT;
const REAL_ALARM_COUNT: usize = 1;
fn enable_clock(&self) {
// NOTE(unsafe) It will only be used for atomic operations
unsafe {
let rcc = &*RCC::ptr();
bb::set(&rcc.$apbenr, $enrbit);
bb::set(&rcc.$apbrstr, $rstrbit);
bb::clear(&rcc.$apbrstr, $rstrbit);
}
}
fn set_compare(&self, n: usize, value: u16) {
// NOTE(unsafe) these registers accept all the range of u16 values
match n {
0 => self.ccr1.write(|w| unsafe { w.bits(value.into()) }),
1 => self.ccr2.write(|w| unsafe { w.bits(value.into()) }),
_ => {}
}
}
fn set_compare_interrupt(&self, n: usize, enable: bool) {
if n > 1 {
return;
}
let bit = n as u8 + 1;
unsafe {
if enable {
bb::set(&self.dier, bit);
} else {
bb::clear(&self.dier, bit);
}
}
}
fn compare_interrupt_status(&self, n: usize) -> bool {
let status = self.sr.read();
match n {
0 => status.cc1if().bit_is_set(),
1 => status.cc2if().bit_is_set(),
_ => false,
}
}
fn compare_clear_flag(&self, n: usize) {
if n > 1 {
return;
}
let bit = n as u8 + 1;
unsafe {
bb::clear(&self.sr, bit);
}
}
fn overflow_interrupt_status(&self) -> bool {
self.sr.read().uif().bit_is_set()
}
fn overflow_clear_flag(&self) {
unsafe {
bb::clear(&self.sr, 0);
}
}
fn set_psc_arr(&self, psc: u16, arr: u16) {
// NOTE(unsafe) All u16 values are valid
self.psc.write(|w| unsafe { w.bits(psc.into()) });
self.arr.write(|w| unsafe { w.bits(arr.into()) });
unsafe {
// Set URS, generate update, clear URS
bb::set(&self.cr1, 2);
self.egr.write(|w| w.ug().set_bit());
bb::clear(&self.cr1, 2);
}
}
fn stop_and_reset(&self) {
unsafe {
bb::clear(&self.cr1, 0);
}
self.cnt.reset();
}
fn start(&self) {
unsafe { bb::set(&self.cr1, 0) }
}
fn counter(&self) -> u16 {
self.cnt.read().bits() as u16
}
fn ppre(clocks: &Clocks) -> u8 {
clocks.$ppre()
}
fn pclk(clocks: &Clocks) -> u32 {
clocks.$pclk().0
}
}
}
};
}
#[cfg(not(feature = "stm32f410"))]
impl_timer!(tim2: (TIM2, TIM2, apb1enr, 0, apb1rstr, 0, ppre1, pclk1), 3);
#[cfg(not(feature = "stm32f410"))]
impl_timer!(tim3: (TIM3, TIM3, apb1enr, 1, apb1rstr, 1, ppre1, pclk1), 3);
#[cfg(not(feature = "stm32f410"))]
impl_timer!(tim4: (TIM4, TIM4, apb1enr, 2, apb1rstr, 2, ppre1, pclk1), 3);
impl_timer!(tim5: (TIM5, TIM5, apb1enr, 3, apb1rstr, 3, ppre1, pclk1), 3);
impl_timer!(tim9: (TIM9, TIM1_BRK_TIM9, apb2enr, 16, apb2rstr, 16, ppre2, pclk2), 1);
#[cfg(not(any(feature = "stm32f401", feature = "stm32f410", feature = "stm32f411")))]
impl_timer!(tim12: (TIM12, TIM8_BRK_TIM12, apb1enr, 6, apb1rstr, 6, ppre1, pclk1), 1);

357
embassy-stm32/src/f4/serial.rs
View File

@@ -1,357 +0,0 @@
//! Async Serial.
use core::future::Future;
use core::marker::PhantomData;
use embassy::interrupt::Interrupt;
use embassy::traits::uart::{Error, Read, ReadUntilIdle, Write};
use embassy::util::InterruptFuture;
use futures::{select_biased, FutureExt};
use crate::hal::{
dma,
dma::config::DmaConfig,
dma::traits::{Channel, DMASet, PeriAddress, Stream},
dma::{MemoryToPeripheral, PeripheralToMemory, Transfer},
rcc::Clocks,
serial,
serial::config::{Config as SerialConfig, DmaConfig as SerialDmaConfig},
serial::{Event as SerialEvent, Pins},
};
use crate::interrupt;
use crate::pac;
/// Interface to the Serial peripheral
pub struct Serial<
USART: PeriAddress<MemSize = u8> + WithInterrupt,
TSTREAM: Stream + WithInterrupt,
RSTREAM: Stream + WithInterrupt,
CHANNEL: Channel,
> {
tx_stream: Option<TSTREAM>,
rx_stream: Option<RSTREAM>,
usart: Option<USART>,
tx_int: TSTREAM::Interrupt,
rx_int: RSTREAM::Interrupt,
usart_int: USART::Interrupt,
channel: PhantomData<CHANNEL>,
}
// static mut INSTANCE: *const Serial<USART1, Stream7<DMA2>, Stream2<DMA2>> = ptr::null_mut();
impl<USART, TSTREAM, RSTREAM, CHANNEL> Serial<USART, TSTREAM, RSTREAM, CHANNEL>
where
USART: serial::Instance
+ PeriAddress<MemSize = u8>
+ DMASet<TSTREAM, CHANNEL, MemoryToPeripheral>
+ DMASet<RSTREAM, CHANNEL, PeripheralToMemory>
+ WithInterrupt,
TSTREAM: Stream + WithInterrupt,
RSTREAM: Stream + WithInterrupt,
CHANNEL: Channel,
{
// Leaking futures is forbidden!
pub unsafe fn new<PINS>(
usart: USART,
streams: (TSTREAM, RSTREAM),
pins: PINS,
tx_int: TSTREAM::Interrupt,
rx_int: RSTREAM::Interrupt,
usart_int: USART::Interrupt,
mut config: SerialConfig,
clocks: Clocks,
) -> Self
where
PINS: Pins<USART>,
{
config.dma = SerialDmaConfig::TxRx;
let (usart, _) = serial::Serial::new(usart, pins, config, clocks)
.unwrap()
.release();
let (tx_stream, rx_stream) = streams;
Serial {
tx_stream: Some(tx_stream),
rx_stream: Some(rx_stream),
usart: Some(usart),
tx_int: tx_int,
rx_int: rx_int,
usart_int: usart_int,
channel: PhantomData,
}
}
}
impl<USART, TSTREAM, RSTREAM, CHANNEL> Read for Serial<USART, TSTREAM, RSTREAM, CHANNEL>
where
USART: serial::Instance
+ PeriAddress<MemSize = u8>
+ DMASet<TSTREAM, CHANNEL, MemoryToPeripheral>
+ DMASet<RSTREAM, CHANNEL, PeripheralToMemory>
+ WithInterrupt
+ 'static,
TSTREAM: Stream + WithInterrupt + 'static,
RSTREAM: Stream + WithInterrupt + 'static,
CHANNEL: Channel + 'static,
{
type ReadFuture<'a> = impl Future<Output = Result<(), Error>> + 'a;
/// Receives serial data.
///
/// The future is pending until the buffer is completely filled.
fn read<'a>(&'a mut self, buf: &'a mut [u8]) -> Self::ReadFuture<'a> {
let static_buf = unsafe { core::mem::transmute::<&'a mut [u8], &'static mut [u8]>(buf) };
async move {
let rx_stream = self.rx_stream.take().unwrap();
let usart = self.usart.take().unwrap();
let mut rx_transfer = Transfer::init(
rx_stream,
usart,
static_buf,
None,
DmaConfig::default()
.transfer_complete_interrupt(true)
.memory_increment(true)
.double_buffer(false),
);
let fut = InterruptFuture::new(&mut self.rx_int);
rx_transfer.start(|_usart| {});
fut.await;
let (rx_stream, usart, _, _) = rx_transfer.free();
self.rx_stream.replace(rx_stream);
self.usart.replace(usart);
Ok(())
}
}
}
impl<USART, TSTREAM, RSTREAM, CHANNEL> Write for Serial<USART, TSTREAM, RSTREAM, CHANNEL>
where
USART: serial::Instance
+ PeriAddress<MemSize = u8>
+ DMASet<TSTREAM, CHANNEL, MemoryToPeripheral>
+ DMASet<RSTREAM, CHANNEL, PeripheralToMemory>
+ WithInterrupt
+ 'static,
TSTREAM: Stream + WithInterrupt + 'static,
RSTREAM: Stream + WithInterrupt + 'static,
CHANNEL: Channel + 'static,
{
type WriteFuture<'a> = impl Future<Output = Result<(), Error>> + 'a;
/// Sends serial data.
fn write<'a>(&'a mut self, buf: &'a [u8]) -> Self::WriteFuture<'a> {
#[allow(mutable_transmutes)]
let static_buf = unsafe { core::mem::transmute::<&'a [u8], &'static mut [u8]>(buf) };
async move {
let tx_stream = self.tx_stream.take().unwrap();
let usart = self.usart.take().unwrap();
let mut tx_transfer = Transfer::init(
tx_stream,
usart,
static_buf,
None,
DmaConfig::default()
.transfer_complete_interrupt(true)
.memory_increment(true)
.double_buffer(false),
);
let fut = InterruptFuture::new(&mut self.tx_int);
tx_transfer.start(|_usart| {});
fut.await;
let (tx_stream, usart, _buf, _) = tx_transfer.free();
self.tx_stream.replace(tx_stream);
self.usart.replace(usart);
Ok(())
}
}
}
impl<USART, TSTREAM, RSTREAM, CHANNEL> ReadUntilIdle for Serial<USART, TSTREAM, RSTREAM, CHANNEL>
where
USART: serial::Instance
+ PeriAddress<MemSize = u8>
+ DMASet<TSTREAM, CHANNEL, MemoryToPeripheral>
+ DMASet<RSTREAM, CHANNEL, PeripheralToMemory>
+ WithInterrupt
+ 'static,
TSTREAM: Stream + WithInterrupt + 'static,
RSTREAM: Stream + WithInterrupt + 'static,
CHANNEL: Channel + 'static,
{
type ReadUntilIdleFuture<'a> = impl Future<Output = Result<usize, Error>> + 'a;
/// Receives serial data.
///
/// The future is pending until either the buffer is completely full, or the RX line falls idle after receiving some data.
///
/// Returns the number of bytes read.
fn read_until_idle<'a>(&'a mut self, buf: &'a mut [u8]) -> Self::ReadUntilIdleFuture<'a> {
let static_buf = unsafe { core::mem::transmute::<&'a mut [u8], &'static mut [u8]>(buf) };
async move {
let rx_stream = self.rx_stream.take().unwrap();
let usart = self.usart.take().unwrap();
unsafe {
/* __HAL_UART_ENABLE_IT(&uart->UartHandle, UART_IT_IDLE); */
(*USART::ptr()).cr1.modify(|_, w| w.idleie().set_bit());
/* __HAL_UART_CLEAR_IDLEFLAG(&uart->UartHandle); */
(*USART::ptr()).sr.read();
(*USART::ptr()).dr.read();
};
let mut rx_transfer = Transfer::init(
rx_stream,
usart,
static_buf,
None,
DmaConfig::default()
.transfer_complete_interrupt(true)
.memory_increment(true)
.double_buffer(false),
);
let total_bytes = RSTREAM::get_number_of_transfers() as usize;
let fut = InterruptFuture::new(&mut self.rx_int);
let fut_idle = InterruptFuture::new(&mut self.usart_int);
rx_transfer.start(|_usart| {});
futures::future::select(fut, fut_idle).await;
let (rx_stream, usart, _, _) = rx_transfer.free();
let remaining_bytes = RSTREAM::get_number_of_transfers() as usize;
unsafe {
(*USART::ptr()).cr1.modify(|_, w| w.idleie().clear_bit());
}
self.rx_stream.replace(rx_stream);
self.usart.replace(usart);
Ok(total_bytes - remaining_bytes)
}
}
}
mod private {
pub trait Sealed {}
}
pub trait WithInterrupt: private::Sealed {
type Interrupt: Interrupt;
}
macro_rules! dma {
($($PER:ident => ($dma:ident, $stream:ident),)+) => {
$(
impl private::Sealed for dma::$stream<pac::$dma> {}
impl WithInterrupt for dma::$stream<pac::$dma> {
type Interrupt = interrupt::$PER;
}
)+
}
}
macro_rules! usart {
($($PER:ident => ($usart:ident),)+) => {
$(
impl private::Sealed for pac::$usart {}
impl WithInterrupt for pac::$usart {
type Interrupt = interrupt::$PER;
}
)+
}
}
dma! {
DMA2_STREAM0 => (DMA2, Stream0),
DMA2_STREAM1 => (DMA2, Stream1),
DMA2_STREAM2 => (DMA2, Stream2),
DMA2_STREAM3 => (DMA2, Stream3),
DMA2_STREAM4 => (DMA2, Stream4),
DMA2_STREAM5 => (DMA2, Stream5),
DMA2_STREAM6 => (DMA2, Stream6),
DMA2_STREAM7 => (DMA2, Stream7),
DMA1_STREAM0 => (DMA1, Stream0),
DMA1_STREAM1 => (DMA1, Stream1),
DMA1_STREAM2 => (DMA1, Stream2),
DMA1_STREAM3 => (DMA1, Stream3),
DMA1_STREAM4 => (DMA1, Stream4),
DMA1_STREAM5 => (DMA1, Stream5),
DMA1_STREAM6 => (DMA1, Stream6),
}
#[cfg(any(feature = "stm32f401", feature = "stm32f410", feature = "stm32f411",))]
usart! {
USART1 => (USART1),
USART2 => (USART2),
USART6 => (USART6),
}
#[cfg(any(feature = "stm32f405", feature = "stm32f407"))]
usart! {
USART1 => (USART1),
USART2 => (USART2),
USART3 => (USART3),
USART6 => (USART6),
UART4 => (UART4),
UART5 => (UART5),
}
#[cfg(feature = "stm32f412")]
usart! {
USART1 => (USART1),
USART2 => (USART2),
USART3 => (USART3),
USART6 => (USART6),
}
#[cfg(feature = "stm32f413")]
usart! {
USART1 => (USART1),
USART2 => (USART2),
USART3 => (USART3),
USART6 => (USART6),
USART7 => (USART7),
USART8 => (USART8),
UART5 => (UART5),
UART9 => (UART9),
UART10 => (UART10),
}
#[cfg(any(
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f446",
feature = "stm32f469"
))]
usart! {
USART1 => (USART1),
USART2 => (USART2),
USART3 => (USART3),
USART6 => (USART6),
UART4 => (UART4),
UART5 => (UART5),
// UART7 => (UART7),
// UART8 => (UART8),
}

492
embassy-stm32/src/f4/spi.rs
View File

@@ -1,492 +0,0 @@
//! Async SPI
use embassy::time;
use core::{future::Future, marker::PhantomData, mem, ops::Deref, pin::Pin, ptr};
use embassy::{interrupt::Interrupt, traits::spi::FullDuplex, util::InterruptFuture};
use nb;
pub use crate::hal::spi::{Mode, Phase, Polarity};
use crate::hal::{
bb, dma,
dma::config::DmaConfig,
dma::traits::{Channel, DMASet, PeriAddress, Stream},
dma::{MemoryToPeripheral, PeripheralToMemory, Transfer},
rcc::Clocks,
spi::Pins,
time::Hertz,
};
use crate::interrupt;
use crate::pac;
use futures::future;
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
#[non_exhaustive]
pub enum Error {
TxBufferTooLong,
RxBufferTooLong,
Overrun,
ModeFault,
Crc,
}
fn read_sr<T: Instance>(spi: &T) -> nb::Result<u8, Error> {
let sr = spi.sr.read();
Err(if sr.ovr().bit_is_set() {
nb::Error::Other(Error::Overrun)
} else if sr.modf().bit_is_set() {
nb::Error::Other(Error::ModeFault)
} else if sr.crcerr().bit_is_set() {
nb::Error::Other(Error::Crc)
} else if sr.rxne().bit_is_set() {
// NOTE(read_volatile) read only 1 byte (the svd2rust API only allows
// reading a half-word)
return Ok(unsafe { ptr::read_volatile(&spi.dr as *const _ as *const u8) });
} else {
nb::Error::WouldBlock
})
}
fn write_sr<T: Instance>(spi: &T, byte: u8) -> nb::Result<(), Error> {
let sr = spi.sr.read();
Err(if sr.ovr().bit_is_set() {
// Read from the DR to clear the OVR bit
let _ = spi.dr.read();
nb::Error::Other(Error::Overrun)
} else if sr.modf().bit_is_set() {
// Write to CR1 to clear MODF
spi.cr1.modify(|_r, w| w);
nb::Error::Other(Error::ModeFault)
} else if sr.crcerr().bit_is_set() {
// Clear the CRCERR bit
spi.sr.modify(|_r, w| {
w.crcerr().clear_bit();
w
});
nb::Error::Other(Error::Crc)
} else if sr.txe().bit_is_set() {
// NOTE(write_volatile) see note above
unsafe { ptr::write_volatile(&spi.dr as *const _ as *mut u8, byte) }
return Ok(());
} else {
nb::Error::WouldBlock
})
}
/// Interface to the Serial peripheral
pub struct Spi<
SPI: PeriAddress<MemSize = u8> + WithInterrupt,
TSTREAM: Stream + WithInterrupt,
RSTREAM: Stream + WithInterrupt,
CHANNEL: Channel,
> {
tx_stream: Option<TSTREAM>,
rx_stream: Option<RSTREAM>,
spi: Option<SPI>,
tx_int: TSTREAM::Interrupt,
rx_int: RSTREAM::Interrupt,
spi_int: SPI::Interrupt,
channel: PhantomData<CHANNEL>,
}
impl<SPI, TSTREAM, RSTREAM, CHANNEL> Spi<SPI, TSTREAM, RSTREAM, CHANNEL>
where
SPI: Instance
+ PeriAddress<MemSize = u8>
+ DMASet<TSTREAM, CHANNEL, MemoryToPeripheral>
+ DMASet<RSTREAM, CHANNEL, PeripheralToMemory>
+ WithInterrupt,
TSTREAM: Stream + WithInterrupt,
RSTREAM: Stream + WithInterrupt,
CHANNEL: Channel,
{
// Leaking futures is forbidden!
pub unsafe fn new<PINS>(
spi: SPI,
streams: (TSTREAM, RSTREAM),
pins: PINS,
tx_int: TSTREAM::Interrupt,
rx_int: RSTREAM::Interrupt,
spi_int: SPI::Interrupt,
mode: Mode,
freq: Hertz,
clocks: Clocks,
) -> Self
where
PINS: Pins<SPI>,
{
let (tx_stream, rx_stream) = streams;
// let spi1: crate::pac::SPI1 = unsafe { mem::transmute(()) };
// let mut hspi = crate::hal::spi::Spi::spi1(
// spi1,
// (
// crate::hal::spi::NoSck,
// crate::hal::spi::NoMiso,
// crate::hal::spi::NoMosi,
// ),
// mode,
// freq,
// clocks,
// );
unsafe { SPI::enable_clock() };
let clock = SPI::clock_speed(clocks);
// disable SS output
// spi.cr2
// .write(|w| w.ssoe().clear_bit().rxdmaen().set_bit().txdmaen().set_bit());
spi.cr2.write(|w| w.ssoe().clear_bit());
let br = match clock.0 / freq.0 {
0 => unreachable!(),
1..=2 => 0b000,
3..=5 => 0b001,
6..=11 => 0b010,
12..=23 => 0b011,
24..=47 => 0b100,
48..=95 => 0b101,
96..=191 => 0b110,
_ => 0b111,
};
// mstr: master configuration
// lsbfirst: MSB first
// ssm: enable software slave management (NSS pin free for other uses)
// ssi: set nss high = master mode
// dff: 8 bit frames
// bidimode: 2-line unidirectional
// spe: enable the SPI bus
spi.cr1.write(|w| {
w.cpha()
.bit(mode.phase == Phase::CaptureOnSecondTransition)
.cpol()
.bit(mode.polarity == Polarity::IdleHigh)
.mstr()
.set_bit()
.br()
.bits(br)
.lsbfirst()
.clear_bit()
.ssm()
.set_bit()
.ssi()
.set_bit()
.rxonly()
.clear_bit()
.dff()
.clear_bit()
.bidimode()
.clear_bit()
.spe()
.set_bit()
});
Self {
tx_stream: Some(tx_stream),
rx_stream: Some(rx_stream),
spi: Some(spi),
tx_int: tx_int,
rx_int: rx_int,
spi_int: spi_int,
channel: PhantomData,
}
}
}
impl<SPI, TSTREAM, RSTREAM, CHANNEL> FullDuplex<u8> for Spi<SPI, TSTREAM, RSTREAM, CHANNEL>
where
SPI: Instance
+ PeriAddress<MemSize = u8>
+ DMASet<TSTREAM, CHANNEL, MemoryToPeripheral>
+ DMASet<RSTREAM, CHANNEL, PeripheralToMemory>
+ WithInterrupt
+ 'static,
TSTREAM: Stream + WithInterrupt + 'static,
RSTREAM: Stream + WithInterrupt + 'static,
CHANNEL: Channel + 'static,
{
type Error = Error;
type WriteFuture<'a> = impl Future<Output = Result<(), Error>> + 'a;
type ReadFuture<'a> = impl Future<Output = Result<(), Error>> + 'a;
type WriteReadFuture<'a> = impl Future<Output = Result<(), Error>> + 'a;
fn read<'a>(&'a mut self, buf: &'a mut [u8]) -> Self::ReadFuture<'a> {
#[allow(mutable_transmutes)]
let static_buf: &'static mut [u8] = unsafe { mem::transmute(buf) };
async move {
let rx_stream = self.rx_stream.take().unwrap();
let spi = self.spi.take().unwrap();
spi.cr2.modify(|_, w| w.errie().set_bit());
let mut rx_transfer = Transfer::init(
rx_stream,
spi,
static_buf,
None,
DmaConfig::default()
.transfer_complete_interrupt(true)
.memory_increment(true)
.double_buffer(false),
);
let fut = InterruptFuture::new(&mut self.rx_int);
let fut_err = InterruptFuture::new(&mut self.spi_int);
rx_transfer.start(|_spi| {});
future::select(fut, fut_err).await;
let (rx_stream, spi, _buf, _) = rx_transfer.free();
spi.cr2.modify(|_, w| w.errie().clear_bit());
self.rx_stream.replace(rx_stream);
self.spi.replace(spi);
Ok(())
}
}
fn write<'a>(&'a mut self, buf: &'a [u8]) -> Self::WriteFuture<'a> {
#[allow(mutable_transmutes)]
let static_buf: &'static mut [u8] = unsafe { mem::transmute(buf) };
async move {
let tx_stream = self.tx_stream.take().unwrap();
let spi = self.spi.take().unwrap();
spi.cr2
.modify(|_, w| w.errie().set_bit().txeie().set_bit().rxneie().set_bit());
// let mut tx_transfer = Transfer::init(
// tx_stream,
// spi,
// static_buf,
// None,
// DmaConfig::default()
// .transfer_complete_interrupt(true)
// .memory_increment(true)
// .double_buffer(false),
// );
//
// let fut = InterruptFuture::new(&mut self.tx_int);
//
// tx_transfer.start(|_spi| {});
// fut.await;
// let (tx_stream, spi, _buf, _) = tx_transfer.free();
for i in 0..(static_buf.len() - 1) {
let byte = static_buf[i];
loop {
match write_sr(&spi, byte) {
Ok(()) => break,
_ => {}
}
InterruptFuture::new(&mut self.spi_int).await;
}
}
spi.cr2.modify(|_, w| {
w.errie()
.clear_bit()
.txeie()
.clear_bit()
.rxneie()
.clear_bit()
});
self.tx_stream.replace(tx_stream);
self.spi.replace(spi);
Ok(())
}
}
fn read_write<'a>(
&'a mut self,
read_buf: &'a mut [u8],
write_buf: &'a [u8],
) -> Self::WriteReadFuture<'a> {
#[allow(mutable_transmutes)]
let write_static_buf: &'static mut [u8] = unsafe { mem::transmute(write_buf) };
let read_static_buf: &'static mut [u8] = unsafe { mem::transmute(read_buf) };
async move {
let tx_stream = self.tx_stream.take().unwrap();
let rx_stream = self.rx_stream.take().unwrap();
let spi_tx = self.spi.take().unwrap();
let spi_rx: SPI = unsafe { mem::transmute_copy(&spi_tx) };
spi_rx
.cr2
.modify(|_, w| w.errie().set_bit().txeie().set_bit().rxneie().set_bit());
// let mut tx_transfer = Transfer::init(
// tx_stream,
// spi_tx,
// write_static_buf,
// None,
// DmaConfig::default()
// .transfer_complete_interrupt(true)
// .memory_increment(true)
// .double_buffer(false),
// );
//
// let mut rx_transfer = Transfer::init(
// rx_stream,
// spi_rx,
// read_static_buf,
// None,
// DmaConfig::default()
// .transfer_complete_interrupt(true)
// .memory_increment(true)
// .double_buffer(false),
// );
//
// let tx_fut = InterruptFuture::new(&mut self.tx_int);
// let rx_fut = InterruptFuture::new(&mut self.rx_int);
// let rx_fut_err = InterruptFuture::new(&mut self.spi_int);
//
// rx_transfer.start(|_spi| {});
// tx_transfer.start(|_spi| {});
//
// time::Timer::after(time::Duration::from_millis(500)).await;
//
// // tx_fut.await;
// // future::select(rx_fut, rx_fut_err).await;
//
// let (rx_stream, spi_rx, _buf, _) = rx_transfer.free();
// let (tx_stream, _, _buf, _) = tx_transfer.free();
for i in 0..(read_static_buf.len() - 1) {
let byte = write_static_buf[i];
loop {
let fut = InterruptFuture::new(&mut self.spi_int);
match write_sr(&spi_tx, byte) {
Ok(()) => break,
_ => {}
}
fut.await;
}
loop {
let fut = InterruptFuture::new(&mut self.spi_int);
match read_sr(&spi_tx) {
Ok(byte) => {
read_static_buf[i] = byte;
break;
}
_ => {}
}
fut.await;
}
}
spi_rx.cr2.modify(|_, w| {
w.errie()
.clear_bit()
.txeie()
.clear_bit()
.rxneie()
.clear_bit()
});
self.rx_stream.replace(rx_stream);
self.tx_stream.replace(tx_stream);
self.spi.replace(spi_rx);
Ok(())
}
}
}
mod private {
pub trait Sealed {}
}
pub trait WithInterrupt: private::Sealed {
type Interrupt: Interrupt;
}
pub trait Instance: Deref<Target = pac::spi1::RegisterBlock> + private::Sealed {
unsafe fn enable_clock();
fn clock_speed(clocks: Clocks) -> Hertz;
}
macro_rules! dma {
($($PER:ident => ($dma:ident, $stream:ident),)+) => {
$(
impl private::Sealed for dma::$stream<pac::$dma> {}
impl WithInterrupt for dma::$stream<pac::$dma> {
type Interrupt = interrupt::$PER;
}
)+
}
}
macro_rules! spi {
($($PER:ident => ($SPI:ident, $pclkX:ident, $apbXenr:ident, $en:expr),)+) => {
$(
impl private::Sealed for pac::$SPI {}
impl Instance for pac::$SPI {
unsafe fn enable_clock() {
const EN_BIT: u8 = $en;
// NOTE(unsafe) self reference will only be used for atomic writes with no side effects.
let rcc = &(*pac::RCC::ptr());
// Enable clock.
bb::set(&rcc.$apbXenr, EN_BIT);
// Stall the pipeline to work around erratum 2.1.13 (DM00037591)
cortex_m::asm::dsb();
}
fn clock_speed(clocks: Clocks) -> Hertz {
clocks.$pclkX()
}
}
impl WithInterrupt for pac::$SPI {
type Interrupt = interrupt::$PER;
}
)+
}
}
dma! {
DMA2_STREAM0 => (DMA2, Stream0),
DMA2_STREAM1 => (DMA2, Stream1),
DMA2_STREAM2 => (DMA2, Stream2),
DMA2_STREAM3 => (DMA2, Stream3),
DMA2_STREAM4 => (DMA2, Stream4),
DMA2_STREAM5 => (DMA2, Stream5),
DMA2_STREAM6 => (DMA2, Stream6),
DMA2_STREAM7 => (DMA2, Stream7),
DMA1_STREAM0 => (DMA1, Stream0),
DMA1_STREAM1 => (DMA1, Stream1),
DMA1_STREAM2 => (DMA1, Stream2),
DMA1_STREAM3 => (DMA1, Stream3),
DMA1_STREAM4 => (DMA1, Stream4),
DMA1_STREAM5 => (DMA1, Stream5),
DMA1_STREAM6 => (DMA1, Stream6),
}
#[cfg(any(
feature = "stm32f401",
feature = "stm32f410",
feature = "stm32f411",
feature = "stm32f446",
))]
spi! {
SPI1 => (SPI1, pclk2, apb2enr, 12),
SPI2 => (SPI2, pclk1, apb2enr, 14),
// SPI6 => (SPI6, pclk2, apb2enr, 21),
SPI4 => (SPI3, pclk2, apb2enr, 13),
// SPI5 => (SPI3, pclk2, apb2enr, 20),
}
#[cfg(any(feature = "stm32f405", feature = "stm32f407"))]
spi! {
SPI1 => (SPI1, pclk2, apb2enr, 12),
SPI3 => (SPI3, pclk1, apb2enr, 15),
}

61
embassy-stm32/src/f4/system.rs
View File

@@ -1,61 +0,0 @@
use crate::{hal::prelude::*, pac, Peripherals};
#[derive(Default)]
pub struct Config {
pub use_hse: Option<u32>,
pub sysclk: Option<u32>,
pub pclk1: Option<u32>,
pub require_pll48clk: bool,
}
impl Config {
pub fn new() -> Self {
Default::default()
}
pub fn use_hse(mut self, freq: u32) -> Self {
self.use_hse = Some(freq);
self
}
pub fn sysclk(mut self, freq: u32) -> Self {
self.sysclk = Some(freq);
self
}
pub fn pclk1(mut self, freq: u32) -> Self {
self.pclk1 = Some(freq);
self
}
pub fn require_pll48clk(mut self) -> Self {
self.require_pll48clk = true;
self
}
}
/// safety: must only call once.
pub unsafe fn configure(config: Config) {
let dp = pac::Peripherals::take().unwrap();
let mut cfgr = dp.RCC.constrain().cfgr;
if let Some(hz) = config.use_hse {
cfgr = cfgr.use_hse(hz.mhz());
};
if let Some(hz) = config.sysclk {
cfgr = cfgr.sysclk(hz.mhz());
};
if let Some(hz) = config.pclk1 {
cfgr = cfgr.pclk1(hz.mhz());
};
if config.require_pll48clk {
cfgr = cfgr.require_pll48clk();
};
let clocks = cfgr.freeze();
unsafe { Peripherals::set_peripherals(clocks) };
}

114
embassy-stm32/src/fmt.rs
View File

@@ -1,114 +0,0 @@
#![macro_use]
#![allow(clippy::module_inception)]
#![allow(unused)]
#[cfg(all(feature = "defmt", feature = "log"))]
compile_error!("You may not enable both `defmt` and `log` features.");
pub use fmt::*;
#[cfg(feature = "defmt")]
mod fmt {
pub use defmt::{
assert, assert_eq, assert_ne, debug, debug_assert, debug_assert_eq, debug_assert_ne, error,
info, panic, todo, trace, unreachable, unwrap, warn,
};
}
#[cfg(feature = "log")]
mod fmt {
pub use core::{
assert, assert_eq, assert_ne, debug_assert, debug_assert_eq, debug_assert_ne, panic, todo,
unreachable,
};
pub use log::{debug, error, info, trace, warn};
}
#[cfg(not(any(feature = "defmt", feature = "log")))]
mod fmt {
#![macro_use]
pub use core::{
assert, assert_eq, assert_ne, debug_assert, debug_assert_eq, debug_assert_ne, panic, todo,
unreachable,
};
macro_rules! trace {
($($msg:expr),+ $(,)?) => {
()
};
}
macro_rules! debug {
($($msg:expr),+ $(,)?) => {
()
};
}
macro_rules! info {
($($msg:expr),+ $(,)?) => {
()
};
}
macro_rules! warn {
($($msg:expr),+ $(,)?) => {
()
};
}
macro_rules! error {
($($msg:expr),+ $(,)?) => {
()
};
}
}
#[cfg(not(feature = "defmt"))]
macro_rules! unwrap {
($arg:expr) => {
match $crate::fmt::Try::into_result($arg) {
::core::result::Result::Ok(t) => t,
::core::result::Result::Err(e) => {
::core::panic!("unwrap of `{}` failed: {:?}", ::core::stringify!($arg), e);
}
}
};
($arg:expr, $($msg:expr),+ $(,)? ) => {
match $crate::fmt::Try::into_result($arg) {
::core::result::Result::Ok(t) => t,
::core::result::Result::Err(e) => {
::core::panic!("unwrap of `{}` failed: {}: {:?}", ::core::stringify!($arg), ::core::format_args!($($msg,)*), e);
}
}
}
}
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
pub struct NoneError;
pub trait Try {
type Ok;
type Error;
fn into_result(self) -> Result<Self::Ok, Self::Error>;
}
impl<T> Try for Option<T> {
type Ok = T;
type Error = NoneError;
#[inline]
fn into_result(self) -> Result<T, NoneError> {
self.ok_or(NoneError)
}
}
impl<T, E> Try for Result<T, E> {
type Ok = T;
type Error = E;
#[inline]
fn into_result(self) -> Self {
self
}
}

1042
embassy-stm32/src/interrupt.rs
View File

File diff suppressed because it is too large Load Diff

2
embassy-stm32/src/l0/mod.rs
View File

@@ -1,2 +0,0 @@
pub mod rtc;
pub mod system;

372
embassy-stm32/src/l0/rtc.rs
View File

@@ -1,372 +0,0 @@
use crate::hal::rcc::Clocks;
use atomic_polyfill::{compiler_fence, AtomicU32, Ordering};
use core::cell::Cell;
use core::convert::TryInto;
use critical_section::CriticalSection;
use embassy::interrupt::InterruptExt;
use embassy::time::{Clock, TICKS_PER_SECOND};
use embassy::util::CriticalSectionMutex as Mutex;
use crate::interrupt;
use crate::interrupt::Interrupt;
// RTC timekeeping works with something we call "periods", which are time intervals
// of 2^15 ticks. The RTC counter value is 16 bits, so one "overflow cycle" is 2 periods.
//
// A `period` count is maintained in parallel to the RTC hardware `counter`, like this:
// - `period` and `counter` start at 0
// - `period` is incremented on overflow (at counter value 0)
// - `period` is incremented "midway" between overflows (at counter value 0x8000)
//
// Therefore, when `period` is even, counter is in 0..0x7FFF. When odd, counter is in 0x8000..0xFFFF
// This allows for now() to return the correct value even if it races an overflow.
//
// To get `now()`, `period` is read first, then `counter` is read. If the counter value matches
// the expected range for the `period` parity, we're done. If it doesn't, this means that
// a new period start has raced us between reading `period` and `counter`, so we assume the `counter` value
// corresponds to the next period.
//
// `period` is a 32bit integer, so It overflows on 2^32 * 2^15 / 32768 seconds of uptime, which is 136 years.
fn calc_now(period: u32, counter: u16) -> u64 {
((period as u64) << 15) + ((counter as u32 ^ ((period & 1) << 15)) as u64)
}
struct AlarmState {
timestamp: Cell<u64>,
callback: Cell<Option<(fn(*mut ()), *mut ())>>,
}
impl AlarmState {
fn new() -> Self {
Self {
timestamp: Cell::new(u64::MAX),
callback: Cell::new(None),
}
}
}
// TODO: This is sometimes wasteful, try to find a better way
const ALARM_COUNT: usize = 3;
/// RTC timer that can be used by the executor and to set alarms.
///
/// It can work with Timers 2 and 3.
/// This timer works internally with a unit of 2^15 ticks, which means that if a call to
/// [`embassy::time::Clock::now`] is blocked for that amount of ticks the returned value will be
/// wrong (an old value). The current default tick rate is 32768 ticks per second.
pub struct RTC<T: Instance> {
rtc: T,
irq: T::Interrupt,
/// Number of 2^23 periods elapsed since boot.
period: AtomicU32,
/// Timestamp at which to fire alarm. u64::MAX if no alarm is scheduled.
alarms: Mutex<[AlarmState; ALARM_COUNT]>,
clocks: Clocks,
}
impl<T: Instance> RTC<T> {
pub fn new(rtc: T, irq: T::Interrupt, clocks: Clocks) -> Self {
Self {
rtc,
irq,
period: AtomicU32::new(0),
alarms: Mutex::new([AlarmState::new(), AlarmState::new(), AlarmState::new()]),
clocks,
}
}
pub fn start(&'static self) {
self.rtc.enable_clock();
self.rtc.stop_and_reset();
let freq = T::pclk(&self.clocks);
let psc = freq / TICKS_PER_SECOND as u32 - 1;
let psc: u16 = psc.try_into().unwrap();
self.rtc.set_psc_arr(psc, u16::MAX);
// Mid-way point
self.rtc.set_compare(0, 0x8000);
self.rtc.set_compare_interrupt(0, true);
self.irq.set_handler(|ptr| unsafe {
let this = &*(ptr as *const () as *const Self);
this.on_interrupt();
});
self.irq.set_handler_context(self as *const _ as *mut _);
self.irq.unpend();
self.irq.enable();
self.rtc.start();
}
fn on_interrupt(&self) {
if self.rtc.overflow_interrupt_status() {
self.rtc.overflow_clear_flag();
self.next_period();
}
// Half overflow
if self.rtc.compare_interrupt_status(0) {
self.rtc.compare_clear_flag(0);
self.next_period();
}
for n in 1..=ALARM_COUNT {
if self.rtc.compare_interrupt_status(n) {
self.rtc.compare_clear_flag(n);
critical_section::with(|cs| self.trigger_alarm(n, cs));
}
}
}
fn next_period(&self) {
critical_section::with(|cs| {
let period = self.period.fetch_add(1, Ordering::Relaxed) + 1;
let t = (period as u64) << 15;
for n in 1..=ALARM_COUNT {
let alarm = &self.alarms.borrow(cs)[n - 1];
let at = alarm.timestamp.get();
let diff = at - t;
if diff < 0xc000 {
self.rtc.set_compare(n, at as u16);
self.rtc.set_compare_interrupt(n, true);
}
}
})
}
fn trigger_alarm(&self, n: usize, cs: CriticalSection) {
self.rtc.set_compare_interrupt(n, false);
let alarm = &self.alarms.borrow(cs)[n - 1];
alarm.timestamp.set(u64::MAX);
// Call after clearing alarm, so the callback can set another alarm.
if let Some((f, ctx)) = alarm.callback.get() {
f(ctx);
}
}
fn set_alarm_callback(&self, n: usize, callback: fn(*mut ()), ctx: *mut ()) {
critical_section::with(|cs| {
let alarm = &self.alarms.borrow(cs)[n - 1];
alarm.callback.set(Some((callback, ctx)));
})
}
fn set_alarm(&self, n: usize, timestamp: u64) {
critical_section::with(|cs| {
let alarm = &self.alarms.borrow(cs)[n - 1];
alarm.timestamp.set(timestamp);
let t = self.now();
if timestamp <= t {
self.trigger_alarm(n, cs);
return;
}
let diff = timestamp - t;
if diff < 0xc000 {
let safe_timestamp = timestamp.max(t + 3);
self.rtc.set_compare(n, safe_timestamp as u16);
self.rtc.set_compare_interrupt(n, true);
} else {
self.rtc.set_compare_interrupt(n, false);
}
});
}
pub fn alarm1(&'static self) -> Alarm<T> {
Alarm { n: 1, rtc: self }
}
pub fn alarm2(&'static self) -> Option<Alarm<T>> {
if T::REAL_ALARM_COUNT >= 2 {
Some(Alarm { n: 2, rtc: self })
} else {
None
}
}
pub fn alarm3(&'static self) -> Option<Alarm<T>> {
if T::REAL_ALARM_COUNT >= 3 {
Some(Alarm { n: 3, rtc: self })
} else {
None
}
}
}
impl<T: Instance> embassy::time::Clock for RTC<T> {
fn now(&self) -> u64 {
let period = self.period.load(Ordering::Relaxed);
compiler_fence(Ordering::Acquire);
let counter = self.rtc.counter();
calc_now(period, counter)
}
}
pub struct Alarm<T: Instance> {
n: usize,
rtc: &'static RTC<T>,
}
impl<T: Instance> embassy::time::Alarm for Alarm<T> {
fn set_callback(&self, callback: fn(*mut ()), ctx: *mut ()) {
self.rtc.set_alarm_callback(self.n, callback, ctx);
}
fn set(&self, timestamp: u64) {
self.rtc.set_alarm(self.n, timestamp);
}
fn clear(&self) {
self.rtc.set_alarm(self.n, u64::MAX);
}
}
mod sealed {
pub trait Sealed {}
}
pub trait Instance: sealed::Sealed + Sized + 'static {
type Interrupt: Interrupt;
const REAL_ALARM_COUNT: usize;
fn enable_clock(&self);
fn set_compare(&self, n: usize, value: u16);
fn set_compare_interrupt(&self, n: usize, enable: bool);
fn compare_interrupt_status(&self, n: usize) -> bool;
fn compare_clear_flag(&self, n: usize);
fn overflow_interrupt_status(&self) -> bool;
fn overflow_clear_flag(&self);
// This method should ensure that the values are really updated before returning
fn set_psc_arr(&self, psc: u16, arr: u16);
fn stop_and_reset(&self);
fn start(&self);
fn counter(&self) -> u16;
fn pclk(clocks: &Clocks) -> u32;
}
#[allow(unused_macros)]
macro_rules! impl_timer {
($module:ident: ($TYPE:ident, $INT:ident, $timXen:ident, $timXrst:ident, $apbenr:ident, $apbrstr:ident, $pclk: ident)) => {
mod $module {
use super::*;
use crate::hal::pac::{$TYPE, RCC};
impl sealed::Sealed for $TYPE {}
impl Instance for $TYPE {
type Interrupt = interrupt::$INT;
const REAL_ALARM_COUNT: usize = 3;
fn enable_clock(&self) {
// NOTE(unsafe) It will only be used for atomic operations
unsafe {
let rcc = &*RCC::ptr();
rcc.$apbenr.modify(|_, w| w.$timXen().set_bit());
rcc.$apbrstr.modify(|_, w| w.$timXrst().set_bit());
rcc.$apbrstr.modify(|_, w| w.$timXrst().clear_bit());
}
}
fn set_compare(&self, n: usize, value: u16) {
// NOTE(unsafe) these registers accept all the range of u16 values
match n {
0 => self.ccr1.write(|w| unsafe { w.bits(value.into()) }),
1 => self.ccr2.write(|w| unsafe { w.bits(value.into()) }),
2 => self.ccr3.write(|w| unsafe { w.bits(value.into()) }),
3 => self.ccr4.write(|w| unsafe { w.bits(value.into()) }),
_ => {}
}
}
fn set_compare_interrupt(&self, n: usize, enable: bool) {
if n > 3 {
return;
}
let bit = n as u8 + 1;
unsafe {
if enable {
self.dier.modify(|r, w| w.bits(r.bits() | (1 << bit)));
} else {
self.dier.modify(|r, w| w.bits(r.bits() & !(1 << bit)));
}
}
}
fn compare_interrupt_status(&self, n: usize) -> bool {
let status = self.sr.read();
match n {
0 => status.cc1if().bit_is_set(),
1 => status.cc2if().bit_is_set(),
2 => status.cc3if().bit_is_set(),
3 => status.cc4if().bit_is_set(),
_ => false,
}
}
fn compare_clear_flag(&self, n: usize) {
if n > 3 {
return;
}
let bit = n as u8 + 1;
unsafe {
self.sr.modify(|r, w| w.bits(r.bits() & !(1 << bit)));
}
}
fn overflow_interrupt_status(&self) -> bool {
self.sr.read().uif().bit_is_set()
}
fn overflow_clear_flag(&self) {
unsafe {
self.sr.modify(|_, w| w.uif().clear_bit());
}
}
fn set_psc_arr(&self, psc: u16, arr: u16) {
// NOTE(unsafe) All u16 values are valid
self.psc.write(|w| unsafe { w.bits(psc.into()) });
self.arr.write(|w| unsafe { w.bits(arr.into()) });
unsafe {
// Set URS, generate update, clear URS
self.cr1.modify(|_, w| w.urs().set_bit());
self.egr.write(|w| w.ug().set_bit());
self.cr1.modify(|_, w| w.urs().clear_bit());
}
}
fn stop_and_reset(&self) {
unsafe {
self.cr1.modify(|_, w| w.cen().clear_bit());
}
self.cnt.reset();
}
fn start(&self) {
self.cr1.modify(|_, w| w.cen().set_bit());
}
fn counter(&self) -> u16 {
self.cnt.read().bits() as u16
}
fn pclk(clocks: &Clocks) -> u32 {
clocks.$pclk().0
}
}
}
};
}
impl_timer!(tim2: (TIM2, TIM2, tim2en, tim2rst, apb1enr, apb1rstr, apb1_tim_clk));
impl_timer!(tim3: (TIM3, TIM3, tim3en, tim3rst, apb1enr, apb1rstr, apb1_tim_clk));

17
embassy-stm32/src/l0/system.rs
View File

@@ -1,17 +0,0 @@
use crate::{hal, pac, Peripherals};
pub use hal::{
prelude::*,
rcc::{Clocks, Config},
};
/// safety: must only call once.
pub unsafe fn configure(config: Config) {
let dp = pac::Peripherals::take().unwrap();
let rcc = dp.RCC.freeze(config);
let clocks = rcc.clocks;
unsafe { Peripherals::set_peripherals(clocks) };
}

478
embassy-stm32/src/lib.rs
View File

@@ -1,478 +0,0 @@
#![no_std]
#![feature(generic_associated_types)]
#![feature(asm)]
#![feature(min_type_alias_impl_trait)]
#![feature(impl_trait_in_bindings)]
#![feature(type_alias_impl_trait)]
#![allow(incomplete_features)]
#[cfg(any(
feature = "stm32f401",
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f410",
feature = "stm32f411",
feature = "stm32f412",
feature = "stm32f413",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f423",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f446",
feature = "stm32f469",
feature = "stm32f479",
))]
mod f4;
#[cfg(any(
feature = "stm32f401",
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f412",
feature = "stm32f413",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f423",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f446",
feature = "stm32f469",
feature = "stm32f479",
))]
pub use {stm32f4xx_hal as hal, stm32f4xx_hal::stm32 as pac};
#[cfg(any(feature = "stm32l0x1", feature = "stm32l0x2", feature = "stm32l0x3",))]
pub use {stm32l0xx_hal as hal, stm32l0xx_hal::pac};
#[cfg(any(feature = "stm32l0x1", feature = "stm32l0x2", feature = "stm32l0x3",))]
mod l0;
#[cfg(any(feature = "stm32l0x1", feature = "stm32l0x2", feature = "stm32l0x3",))]
pub use l0::{rtc, system};
pub mod fmt;
pub mod exti;
pub mod interrupt;
#[cfg(any(
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f412",
feature = "stm32f413",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f423",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f446",
feature = "stm32f469",
feature = "stm32f479",
))]
pub mod can;
#[cfg(any(
feature = "stm32f401",
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f412",
feature = "stm32f413",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f423",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f446",
feature = "stm32f469",
feature = "stm32f479",
))]
pub use f4::{rtc, serial, spi, system};
#[cfg(any(
feature = "stm32f401",
feature = "stm32f405",
feature = "stm32f407",
feature = "stm32f410",
feature = "stm32f411",
feature = "stm32f412",
feature = "stm32f413",
feature = "stm32f415",
feature = "stm32f417",
feature = "stm32f423",
feature = "stm32f427",
feature = "stm32f429",
feature = "stm32f437",
feature = "stm32f439",
feature = "stm32f446",
feature = "stm32f469",
feature = "stm32f479",
))]
unsafe impl embassy_extras::usb::USBInterrupt for interrupt::OTG_FS {}
use core::option::Option;
use hal::prelude::*;
use hal::rcc::Clocks;
#[cfg(feature = "stm32f401")]
embassy_extras::std_peripherals! {
ADC_COMMON,
ADC1,
CRC,
DBGMCU,
EXTI,
FLASH,
IWDG,
OTG_FS_DEVICE,
OTG_FS_GLOBAL,
OTG_FS_HOST,
OTG_FS_PWRCLK,
PWR,
//RCC,
RTC,
SDIO,
SYSCFG,
TIM1,
TIM8,
TIM10,
TIM11,
TIM2,
//TIM3,
TIM4,
TIM5,
TIM9,
USART1,
USART2,
USART6,
WWDG,
DMA2,
DMA1,
GPIOH,
GPIOE,
GPIOD,
GPIOC,
GPIOB,
GPIOA,
I2C3,
I2C2,
I2C1,
I2S2EXT,
I2S3EXT,
SPI1,
SPI2,
SPI3,
SPI4,
FPU,
STK,
NVIC_STIR,
FPU_CPACR,
SCB_ACTRL,
}
#[cfg(feature = "stm32f446")]
embassy_extras::std_peripherals! {
DCMI,
FMC,
DBGMCU,
DMA2,
DMA1,
// RCC,
GPIOH,
GPIOG,
GPIOF,
GPIOE,
GPIOD,
GPIOC,
GPIOB,
GPIOA,
SYSCFG,
SPI1,
SPI2,
SPI3,
SPI4,
ADC1,
ADC2,
ADC3,
USART6,
USART1,
USART2,
USART3,
DAC,
I2C3,
I2C2,
I2C1,
IWDG,
WWDG,
RTC,
UART4,
UART5,
ADC_COMMON,
TIM1,
TIM2,
TIM8,
// TIM3,
TIM4,
TIM5,
TIM9,
TIM12,
TIM10,
TIM13,
TIM14,
TIM11,
TIM6,
TIM7,
CRC,
OTG_FS_GLOBAL,
OTG_FS_HOST,
OTG_FS_DEVICE,
OTG_FS_PWRCLK,
CAN1,
CAN2,
FLASH,
EXTI,
OTG_HS_GLOBAL,
OTG_HS_HOST,
OTG_HS_DEVICE,
OTG_HS_PWRCLK,
SAI1,
SAI2,
PWR,
QUADSPI,
SPDIFRX,
// SDMMC,
HDMI_CEC,
FPU,
STK,
NVIC_STIR,
FPU_CPACR,
SCB_ACTRL,
}
#[cfg(feature = "stm32f405")]
embassy_extras::std_peripherals! {
RNG,
DCMI,
FSMC,
DBGMCU,
DMA2,
DMA1,
// RCC,
GPIOI,
GPIOH,
GPIOG,
GPIOF,
GPIOE,
GPIOD,
GPIOC,
GPIOJ,
GPIOK,
GPIOB,
GPIOA,
SYSCFG,
SPI1,
SPI2,
SPI3,
I2S2EXT,
I2S3EXT,
SPI4,
SPI5,
SPI6,
SDIO,
ADC1,
ADC2,
ADC3,
USART6,
USART1,
USART2,
USART3,
DAC,
PWR,
I2C3,
I2C2,
I2C1,
IWDG,
WWDG,
RTC,
UART4,
UART5,
UART7,
UART8,
ADC_COMMON,
TIM1,
TIM8,
TIM2,
// TIM3,
TIM4,
TIM5,
TIM9,
TIM12,
TIM10,
TIM13,
TIM14,
TIM11,
TIM6,
TIM7,
ETHERNET_MAC,
ETHERNET_MMC,
ETHERNET_PTP,
ETHERNET_DMA,
CRC,
OTG_FS_GLOBAL,
OTG_FS_HOST,
OTG_FS_DEVICE,
OTG_FS_PWRCLK,
CAN1,
CAN2,
FLASH,
EXTI,
OTG_HS_GLOBAL,
OTG_HS_HOST,
OTG_HS_DEVICE,
OTG_HS_PWRCLK,
SAI1,
LTDC,
HASH,
CRYP,
FPU,
STK,
NVIC_STIR,
FPU_CPACR,
SCB_ACTRL,
}
#[cfg(feature = "stm32f407")]
embassy_extras::std_peripherals! {
RNG,
DCMI,
FSMC,
DBGMCU,
DMA2,
DMA1,
// RCC,
GPIOI,
GPIOH,
GPIOG,
GPIOF,
GPIOE,
GPIOD,
GPIOC,
GPIOJ,
GPIOK,
GPIOB,
GPIOA,
SYSCFG,
SPI1,
SPI2,
SPI3,
I2S2EXT,
I2S3EXT,
SPI4,
SPI5,
SPI6,
SDIO,
ADC1,
ADC2,
ADC3,
USART6,
USART1,
USART2,
USART3,
DAC,
PWR,
I2C3,
I2C2,
I2C1,
IWDG,
WWDG,
RTC,
UART4,
UART5,
UART7,
UART8,
ADC_COMMON,
TIM1,
TIM8,
TIM2,
// TIM3,
TIM4,
TIM5,
TIM9,
TIM12,
TIM10,
TIM13,
TIM14,
TIM11,
TIM6,
TIM7,
ETHERNET_MAC,
ETHERNET_MMC,
ETHERNET_PTP,
ETHERNET_DMA,
CRC,
OTG_FS_GLOBAL,
OTG_FS_HOST,
OTG_FS_DEVICE,
OTG_FS_PWRCLK,
CAN1,
CAN2,
FLASH,
EXTI,
OTG_HS_GLOBAL,
OTG_HS_HOST,
OTG_HS_DEVICE,
OTG_HS_PWRCLK,
SAI1,
LTDC,
HASH,
CRYP,
FPU,
STK,
NVIC_STIR,
FPU_CPACR,
SCB_ACTRL,
}
#[cfg(feature = "stm32l0x2")]
embassy_extras::std_peripherals! {
SPI1,
SPI2,
USART1,
USART2,
USART4,
USART5,
I2C1,
I2C2,
I2C3,
RNG,
TIM2,
TIM3,
TIM6,
TIM7,
TIM21,
TIM22,
DAC,
RTC,
PWR,
CRC,
GPIOA,
GPIOB,
GPIOC,
GPIOD,
GPIOE,
GPIOH,
SYSCFG,
DMA1,
EXTI,
ADC,
IWDG,
WWDG,
DBG,
}