This repository has been archived on 2024-06-16. You can view files and clone it, but cannot push or open issues or pull requests.
va108xx-hal/examples/blinky-pac.rs

49 lines
1.3 KiB
Rust
Raw Normal View History

2021-12-16 11:26:26 +01:00
//! Blinky examples using only the PAC
//!
//! Additional note on LEDs:
//! Pulling the GPIOs low makes the LEDs blink. See REB1
//! schematic for more details.
#![no_main]
#![no_std]
use cortex_m_rt::entry;
use panic_halt as _;
use va108xx as pac;
// REB LED pin definitions. All on port A
const LED_D2: u32 = 1 << 10;
const LED_D3: u32 = 1 << 7;
const LED_D4: u32 = 1 << 6;
#[entry]
fn main() -> ! {
let dp = pac::Peripherals::take().unwrap();
// Enable all peripheral clocks
dp.SYSCONFIG
.peripheral_clk_enable
.modify(|_, w| unsafe { w.bits(0xffffffff) });
dp.PORTA
.dir()
.modify(|_, w| unsafe { w.bits(LED_D2 | LED_D3 | LED_D4) });
dp.PORTA
.datamask()
.modify(|_, w| unsafe { w.bits(LED_D2 | LED_D3 | LED_D4) });
for _ in 0..10 {
dp.PORTA
.clrout()
.write(|w| unsafe { w.bits(LED_D2 | LED_D3 | LED_D4) });
cortex_m::asm::delay(5_000_000);
dp.PORTA
.setout()
.write(|w| unsafe { w.bits(LED_D2 | LED_D3 | LED_D4) });
cortex_m::asm::delay(5_000_000);
}
loop {
dp.PORTA
.togout()
.write(|w| unsafe { w.bits(LED_D2 | LED_D3 | LED_D4) });
cortex_m::asm::delay(25_000_000);
}
}