Robin Mueller
f376a43f41
Some checks failed
Rust/va108xx-hal/pipeline/head There was a failure building this commit
- Improved IRQ handling, which makes most unsafe unmask operations in user code absolete - Add first UART RX handlers which use an IRQ
45 lines
1.2 KiB
Rust
45 lines
1.2 KiB
Rust
//! UART example application. Sends a test string over a UART and then enters
|
|
//! echo mode
|
|
#![no_main]
|
|
#![no_std]
|
|
|
|
use core::fmt::Write;
|
|
use cortex_m_rt::entry;
|
|
use panic_rtt_target as _;
|
|
use rtt_target::{rprintln, rtt_init_print};
|
|
use va108xx_hal::{gpio::PinsB, pac, prelude::*, uart};
|
|
|
|
#[entry]
|
|
fn main() -> ! {
|
|
rtt_init_print!();
|
|
rprintln!("-- VA108xx UART example application--");
|
|
|
|
let mut dp = pac::Peripherals::take().unwrap();
|
|
|
|
let gpiob = PinsB::new(&mut dp.SYSCONFIG, Some(dp.IOCONFIG), dp.PORTB);
|
|
let tx = gpiob.pb21.into_funsel_1();
|
|
let rx = gpiob.pb20.into_funsel_1();
|
|
|
|
let uartb = uart::Uart::uartb(
|
|
dp.UARTB,
|
|
(tx, rx),
|
|
115200.bps(),
|
|
&mut dp.SYSCONFIG,
|
|
50.mhz(),
|
|
);
|
|
let (mut tx, mut rx) = uartb.split();
|
|
writeln!(tx, "Hello World\r").unwrap();
|
|
loop {
|
|
// Echo what is received on the serial link.
|
|
match rx.read() {
|
|
Ok(recv) => {
|
|
nb::block!(tx.write(recv)).expect("TX send error");
|
|
}
|
|
Err(nb::Error::WouldBlock) => (),
|
|
Err(nb::Error::Other(uart_error)) => {
|
|
rprintln!("UART receive error {:?}", uart_error);
|
|
}
|
|
}
|
|
}
|
|
}
|