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stm32: No need to enable GPIO clocks manually

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This commit is contained in:
Timo Kröger
2021-07-23 14:24:38 +02:00
parent ec5d44333a
commit 5ac91933ff
21 changed files with 36 additions and 221 deletions
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24
examples/stm32h7/src/bin/dac.rs
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@ -13,9 +13,9 @@ use embassy_stm32::gpio::NoPin;
use example_common::*;
use cortex_m_rt::entry;
use embassy_stm32::dac::{Channel, Dac, Value};
use stm32h7::stm32h743 as pac;
use stm32h7xx_hal::prelude::*;
use embassy_stm32::dac::{Dac, Value, Channel};
#[entry]
fn main() -> ! {
@ -23,13 +23,11 @@ fn main() -> ! {
let pp = pac::Peripherals::take().unwrap();
let pwrcfg = pp.PWR.constrain()
.freeze();
let pwrcfg = pp.PWR.constrain().freeze();
let rcc = pp.RCC.constrain();
rcc
.sys_ck(96.mhz())
rcc.sys_ck(96.mhz())
.pclk1(48.mhz())
.pclk2(48.mhz())
.pclk3(48.mhz())
@ -47,21 +45,11 @@ fn main() -> ! {
w
});
pp.RCC.apb1lenr.modify(|_, w|{
pp.RCC.apb1lenr.modify(|_, w| {
w.dac12en().set_bit();
w
});
pp.RCC.ahb4enr.modify(|_, w| {
w.gpioaen().set_bit();
w.gpioben().set_bit();
w.gpiocen().set_bit();
w.gpioden().set_bit();
w.gpioeen().set_bit();
w.gpiofen().set_bit();
w
});
let p = embassy_stm32::init(Default::default());
let mut dac = Dac::new(p.DAC1, p.PA4, NoPin);
@ -79,11 +67,11 @@ use micromath::F32Ext;
fn to_sine_wave(v: u8) -> u8 {
if v >= 128 {
// top half
let r = 3.14 * ( (v-128) as f32/ 128.0) ;
let r = 3.14 * ((v - 128) as f32 / 128.0);
(r.sin() * 128.0 + 127.0) as u8
} else {
// bottom half
let r = 3.14 + 3.14 * (v as f32/ 128.0);
let r = 3.14 + 3.14 * (v as f32 / 128.0);
(r.sin() * 128.0 + 127.0) as u8
}
}