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#![no_std]
#![no_main]
mod blink;
mod led;
use gd32vf103xx_hal::{
eclic::{self, EclicExt},
pac::{self, Peripherals},
rcu::RcuExt,
time::Hertz,
timer,
};
use riscv::asm::wfi;
use riscv_rt::entry;
use led::LED;
// global_asm!(include_str!("boot.S"));
#[derive(PartialEq)]
pub enum PollResult {
Ok,
WouldBlock,
}
#[entry]
fn main(_hartid: usize) -> ! {
let p = unsafe { Peripherals::steal() };
pac::ECLIC::set_threshold_level(eclic::Level::L0);
pac::ECLIC::set_level_priority_bits(eclic::LevelPriorityBits::L3P1);
let t6 = p.TIMER6;
let mut rcu = p.RCU.configure().freeze();
let timer = timer::Timer::<pac::TIMER6>::timer6(t6, Hertz(1), &mut rcu);
let led = LED::new();
let mut blink = blink::Task::new(timer, Hertz(5), led);
loop {
if blink.poll() == PollResult::WouldBlock {
unsafe { wfi() };
}
}
}
#[export_name="ExceptionHandler"]
fn exception_handler(_frame: &riscv_rt::TrapFrame) -> ! {
loop { unsafe { wfi() } };
}
#[export_name="DefaultHandler"]
fn default_handler() -> ! {
loop { unsafe { wfi() } };
}
#[export_name="MachineTimer"]
fn machine_timer() {
loop { unsafe { wfi() } };
}
#[panic_handler]
fn panic(info: &core::panic::PanicInfo) -> ! {
if let Some(loc) = info.location() {
let _file = loc.file();
let _line = loc.line();
if let Some(_msg) = info.payload().downcast_ref::<&str>() {
loop {}
}
loop {}
}
loop {}
}
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