init commit

va416xx-hal/examples/blinky-pac.rs

@@ -0,0 +1,34 @@
+//! Simple blinky example
+#![no_main]
+#![no_std]
+
+use cortex_m_rt::entry;
+use panic_halt as _;
+use va416xx_hal::pac;
+
+// Mask for the LED
+const LED_PG5: u32 = 1 << 5;
+
+#[entry]
+fn main() -> ! {
+    // SAFETY: Peripherals are only stolen once here.
+    let dp = unsafe { pac::Peripherals::steal() };
+    // Enable all peripheral clocks
+    dp.sysconfig
+        .peripheral_clk_enable()
+        .modify(|_, w| unsafe { w.bits(0xffffffff) });
+    dp.portg.dir().modify(|_, w| unsafe { w.bits(LED_PG5) });
+    dp.portg
+        .datamask()
+        .modify(|_, w| unsafe { w.bits(LED_PG5) });
+    for _ in 0..10 {
+        dp.portg.clrout().write(|w| unsafe { w.bits(LED_PG5) });
+        cortex_m::asm::delay(2_000_000);
+        dp.portg.setout().write(|w| unsafe { w.bits(LED_PG5) });
+        cortex_m::asm::delay(2_000_000);
+    }
+    loop {
+        dp.portg.togout().write(|w| unsafe { w.bits(LED_PG5) });
+        cortex_m::asm::delay(2_000_000);
+    }
+}

va416xx-hal/examples/blinky.rs

@@ -0,0 +1,21 @@
+//! Simple blinky example using the HAL
+#![no_main]
+#![no_std]
+
+use cortex_m_rt::entry;
+use embedded_hal::digital::StatefulOutputPin;
+use panic_halt as _;
+use va416xx_hal::{gpio::PinsG, pac};
+
+#[entry]
+fn main() -> ! {
+    // SAFETY: Peripherals are only stolen once here.
+    let mut dp = unsafe { pac::Peripherals::steal() };
+    let portg = PinsG::new(&mut dp.sysconfig, Some(dp.ioconfig), dp.portg);
+    let mut led = portg.pg5.into_readable_push_pull_output();
+    //let mut delay = CountDownTimer::new(&mut dp.SYSCONFIG, 50.mhz(), dp.TIM0);
+    loop {
+        cortex_m::asm::delay(2_000_000);
+        led.toggle().ok();
+    }
+}

va416xx-hal/examples/rtt-log.rs

@@ -0,0 +1,38 @@
+//! Code to test RTT logger functionality.
+#![no_main]
+#![no_std]
+
+use cortex_m_rt::entry;
+use panic_rtt_target as _;
+use rtt_target::{rprintln, rtt_init_print};
+use va416xx as _;
+use va416xx_hal::pac;
+
+// Mask for the LED
+const LED_PG5: u32 = 1 << 5;
+
+#[entry]
+fn main() -> ! {
+    // SAFETY: Peripherals are only stolen once here.
+    let dp = unsafe { pac::Peripherals::steal() };
+    // Enable all peripheral clocks
+    dp.sysconfig
+        .peripheral_clk_enable()
+        .modify(|_, w| unsafe { w.bits(0xffffffff) });
+    dp.portg.dir().modify(|_, w| unsafe { w.bits(LED_PG5) });
+    dp.portg
+        .datamask()
+        .modify(|_, w| unsafe { w.bits(LED_PG5) });
+
+    rtt_init_print!();
+    rprintln!("-- RTT Demo --");
+    let mut counter = 0;
+    loop {
+        rprintln!("{}: Hello, world!", counter);
+        // Still toggle LED. If there are issues with the RTT log, the LED
+        // blinking ensures that the application is actually running.
+        dp.portg.togout().write(|w| unsafe { w.bits(LED_PG5) });
+        counter += 1;
+        cortex_m::asm::delay(10_000_000);
+    }
+}