Module stm32f072b_disco::serial

API for the integrated USART ports

This only implements the usual asynchronous bidirectional 8-bit transfers.

It's possible to use a read-only/write-only serial implementation with usartXrx/usartXtx.

Examples

Echo

use stm32f0xx_hal as hal;

use crate::hal::prelude::*;
use crate::hal::serial::Serial;
use crate::hal::stm32;

use nb::block;

cortex_m::interrupt::free(|cs| {
    let rcc = p.RCC.configure().sysclk(48.mhz()).freeze();

    let gpioa = p.GPIOA.split(&mut rcc);

    let tx = gpioa.pa9.into_alternate_af1(cs);
    let rx = gpioa.pa10.into_alternate_af1(cs);

    let mut serial = Serial::usart1(p.USART1, (tx, rx), 115_200.bps(), &mut rcc);

    loop {
        let received = block!(serial.read()).unwrap();
        block!(serial.write(received)).ok();
    }
});

Hello World

use stm32f0xx_hal as hal;

use crate::hal::prelude::*;
use crate::hal::serial::Serial;
use crate::hal::stm32;

use nb::block;

cortex_m::interrupt::free(|cs| {
    let rcc = p.RCC.configure().sysclk(48.mhz()).freeze();

    let gpioa = p.GPIOA.split(&mut rcc);

    let tx = gpioa.pa9.into_alternate_af1(cs);

    let mut serial = Serial::usart1tx(p.USART1, tx, 115_200.bps(), &mut rcc);

    loop {
        serial.write_str("Hello World!\r\n");
    }
});

Structs

Rx	Serial receiver
Serial	Serial abstraction
Tx	Serial transmitter

Enums

Error	Serial error
Event	Interrupt event

Traits

RxPin
TxPin