39 lines
1.1 KiB
Rust
39 lines
1.1 KiB
Rust
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//! Code to test RTT logger functionality.
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#![no_main]
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#![no_std]
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use cortex_m_rt::entry;
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use panic_rtt_target as _;
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use rtt_target::{rprintln, rtt_init_print};
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use va416xx as _;
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use va416xx_hal::pac;
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// Mask for the LED
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const LED_PG5: u32 = 1 << 5;
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#[entry]
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fn main() -> ! {
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// SAFETY: Peripherals are only stolen once here.
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let dp = unsafe { pac::Peripherals::steal() };
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// Enable all peripheral clocks
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dp.sysconfig
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.peripheral_clk_enable()
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.modify(|_, w| unsafe { w.bits(0xffffffff) });
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dp.portg.dir().modify(|_, w| unsafe { w.bits(LED_PG5) });
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dp.portg
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.datamask()
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.modify(|_, w| unsafe { w.bits(LED_PG5) });
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rtt_init_print!();
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rprintln!("-- RTT Demo --");
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let mut counter = 0;
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loop {
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rprintln!("{}: Hello, world!", counter);
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// Still toggle LED. If there are issues with the RTT log, the LED
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// blinking ensures that the application is actually running.
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dp.portg.togout().write(|w| unsafe { w.bits(LED_PG5) });
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counter += 1;
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cortex_m::asm::delay(10_000_000);
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}
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}
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