94 lines
2.5 KiB
Rust
94 lines
2.5 KiB
Rust
#![no_std]
|
|
#![no_main]
|
|
#![feature(trait_alias)]
|
|
#![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::{task, Executor};
|
|
use embassy::traits::uart::Uart;
|
|
use embassy::util::Forever;
|
|
use embassy_stm32f4::interrupt;
|
|
use embassy_stm32f4::serial;
|
|
use stm32f4xx_hal::dma::StreamsTuple;
|
|
use stm32f4xx_hal::prelude::*;
|
|
use stm32f4xx_hal::serial::config::Config;
|
|
use stm32f4xx_hal::stm32;
|
|
|
|
#[task]
|
|
async fn run(dp: stm32::Peripherals, _cp: cortex_m::Peripherals) {
|
|
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());
|
|
|
|
// https://gist.github.com/thalesfragoso/a07340c5df6eee3b04c42fdc69ecdcb1
|
|
let gpioa = dp.GPIOA.split();
|
|
let rcc = dp.RCC.constrain();
|
|
|
|
let clocks = rcc
|
|
.cfgr
|
|
.use_hse(16.mhz())
|
|
.sysclk(48.mhz())
|
|
.pclk1(24.mhz())
|
|
.freeze();
|
|
|
|
let streams = StreamsTuple::new(dp.DMA2);
|
|
|
|
let mut 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,
|
|
)
|
|
};
|
|
let buf = singleton!(: [u8; 30] = [0; 30]).unwrap();
|
|
|
|
buf[5] = 0x01;
|
|
serial.send(buf).await.unwrap();
|
|
}
|
|
|
|
static EXECUTOR: Forever<Executor> = Forever::new();
|
|
|
|
#[entry]
|
|
fn main() -> ! {
|
|
let dp = stm32::Peripherals::take().unwrap();
|
|
let cp = cortex_m::peripheral::Peripherals::take().unwrap();
|
|
|
|
let executor = EXECUTOR.put(Executor::new());
|
|
executor.run(|spawner| {
|
|
unwrap!(spawner.spawn(run(dp, cp)));
|
|
});
|
|
}
|