bootloader works

flashloader/slot-a-blinky/src/main.rs

@@ -3,10 +3,10 @@
 #![no_std]
 
 use cortex_m_rt::entry;
-use embedded_hal::digital::StatefulOutputPin;
+use embedded_hal::{delay::DelayNs, digital::StatefulOutputPin};
 use panic_rtt_target as _;
 use rtt_target::{rprintln, rtt_init_print};
-use va108xx_hal::{gpio::PinsA, pac};
+use va108xx_hal::{gpio::PinsA, pac, prelude::*, timer::CountdownTimer};
 
 #[entry]
 fn main() -> ! {
@@ -14,11 +14,12 @@ fn main() -> ! {
     rprintln!("VA108xx HAL blinky example for App Slot A");
 
     let mut dp = pac::Peripherals::take().unwrap();
+    let mut timer = CountdownTimer::new(&mut dp.sysconfig, 50.MHz(), dp.tim0);
     let porta = PinsA::new(&mut dp.sysconfig, Some(dp.ioconfig), dp.porta);
     let mut led1 = porta.pa10.into_readable_push_pull_output();
 
     loop {
-        cortex_m::asm::delay(1_000_000);
         led1.toggle().ok();
+        timer.delay_ms(500);
     }
 }