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WIP: dma

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This commit is contained in:
Dario Nieuwenhuis
2021-05-16 02:57:46 +02:00
parent befc052cba
commit bdc3ada4b2
419 changed files with 13187 additions and 13308 deletions
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3
embassy-stm32-examples/Cargo.toml
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@ -28,6 +28,7 @@ defmt-rtt = "0.2.0"
cortex-m = "0.7.1"
cortex-m-rt = "0.6.13"
embedded-hal = { version = "0.2.4" }
panic-probe = "0.1.0"
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"] }
heapless = "0.7"

57
embassy-stm32-examples/src/bin/can.rs_
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@ -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)));
});
}

39
embassy-stm32-examples/src/bin/rtc_async.rs_
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@ -1,39 +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(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(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();
}

89
embassy-stm32-examples/src/bin/usart_dma.rs Normal file
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@ -0,0 +1,89 @@
#![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 core::fmt::Write;
use cortex_m_rt::entry;
use embassy::executor::Executor;
use embassy::time::Clock;
use embassy::util::Forever;
use embassy_stm32::usart::{Config, Uart};
use example_common::*;
use heapless::String;
use stm32f4::stm32f429 as pac;
#[embassy::task]
async fn main_task() {
let mut p = embassy_stm32::init(Default::default());
let config = Config::default();
let mut usart = Uart::new(p.USART3, p.PD9, p.PD8, config, 16_000_000);
for n in 0.. {
let mut s: String<128> = String::new();
core::write!(&mut s, "Hello DMA World {}!\r\n", n).unwrap();
usart
.write_dma(&mut p.DMA1_CH3, s.as_bytes())
.await
.unwrap();
info!("wrote DMA");
}
}
struct ZeroClock;
impl Clock for ZeroClock {
fn now(&self) -> u64 {
0
}
}
static EXECUTOR: Forever<Executor> = Forever::new();
#[entry]
fn main() -> ! {
info!("Hello World!");
let pp = pac::Peripherals::take().unwrap();
pp.DBGMCU.cr.modify(|_, w| {
w.dbg_sleep().set_bit();
w.dbg_standby().set_bit();
w.dbg_stop().set_bit()
});
pp.RCC.ahb1enr.modify(|_, w| w.dma1en().enabled());
pp.RCC.ahb1enr.modify(|_, w| {
w.gpioaen().enabled();
w.gpioben().enabled();
w.gpiocen().enabled();
w.gpioden().enabled();
w.gpioeen().enabled();
w.gpiofen().enabled();
w.dma1en().enabled();
w.dma2en().enabled();
w
});
pp.RCC.apb2enr.modify(|_, w| {
w.syscfgen().enabled();
w
});
pp.RCC.apb1enr.modify(|_, w| {
w.usart3en().enabled();
w
});
unsafe { embassy::time::set_clock(&ZeroClock) };
let executor = EXECUTOR.put(Executor::new());
executor.run(|spawner| {
unwrap!(spawner.spawn(main_task()));
})
}

117
embassy-stm32-examples/src/bin/usb_serial.rs_
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@ -1,117 +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::Level3);
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(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();
}