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62 lines
1.6 KiB
Rust
62 lines
1.6 KiB
Rust
#![no_main]
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#![no_std]
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#[allow(unused)]
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use panic_halt;
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use core::fmt::Write;
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use stm32f0xx_hal as hal;
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use crate::hal::delay::Delay;
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use crate::hal::prelude::*;
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use crate::hal::serial::Serial;
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use crate::hal::stm32;
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use crate::hal::time::Hertz;
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use crate::hal::watchdog::Watchdog;
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use cortex_m::peripheral::Peripherals;
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use cortex_m_rt::entry;
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#[entry]
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fn main() -> ! {
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if let (Some(p), Some(cp)) = (stm32::Peripherals::take(), Peripherals::take()) {
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let gpioa = p.GPIOA.split();
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let rcc = p.RCC.constrain();
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let dbgmcu = p.DBGMCU;
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// Disable the watchdog when the cpu is stopped under debug
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dbgmcu.apb1_fz.modify(|_, w| w.dbg_iwdg_stop().set_bit());
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let mut watchdog = Watchdog::new(p.IWDG);
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let clocks = rcc.cfgr.sysclk(8.mhz()).freeze();
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// Get delay provider
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let mut delay = Delay::new(cp.SYST, clocks);
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let tx = gpioa.pa9.into_alternate_af1();
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let rx = gpioa.pa10.into_alternate_af1();
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let serial = Serial::usart1(p.USART1, (tx, rx), 115_200.bps(), clocks);
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let (mut tx, _rx) = serial.split();
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tx.write_str("RESET \r\n").ok();
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watchdog.start(Hertz(1));
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delay.delay_ms(500_u16);
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watchdog.feed();
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delay.delay_ms(500_u16);
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watchdog.feed();
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delay.delay_ms(500_u16);
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tx.write_str("This will get printed \r\n").ok();
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watchdog.feed();
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// Now a reset happens while delaying
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delay.delay_ms(1500_u16);
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tx.write_str("This won't\r\n").ok();
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}
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loop {
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continue;
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}
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}
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