Merge remote-tracking branch 'origin/main' into james/impl-clocks

1 files changed, 33 insertions, 0 deletions

diff --git a/examples/src/lib.rs b/examples/src/lib.rs
new file mode 100644
index 000000000..a45ab708d
--- /dev/null
+++ b/examples/src/lib.rs
@@ -0,0 +1,33 @@
+#![no_std]
+
+//! Shared board-specific helpers for the FRDM-MCXA276 examples.
+//! These live with the examples so the HAL stays generic.
+
+use hal::{clocks, pins};
+use {embassy_mcxa as hal, panic_probe as _};
+
+/// Initialize clocks and pin muxing for UART2 debug console.
+/// Safe to call multiple times; writes are idempotent for our use.
+#[allow(dead_code)]
+pub unsafe fn init_uart2(_p: &hal::pac::Peripherals) {
+    // NOTE: Lpuart has been updated to properly enable + reset its own clocks.
+    // GPIO has not.
+    _ = clocks::enable_and_reset::<hal::peripherals::PORT2>(&clocks::NoConfig);
+    pins::configure_uart2_pins_port2();
+}
+
+/// Initialize clocks for the LED GPIO/PORT used by the blink example.
+#[allow(dead_code)]
+pub unsafe fn init_led(_p: &hal::pac::Peripherals) {
+    _ = clocks::enable_and_reset::<hal::peripherals::PORT3>(&clocks::NoConfig);
+    _ = clocks::enable_and_reset::<hal::peripherals::GPIO3>(&clocks::NoConfig);
+}
+
+/// Initialize clocks and pin muxing for ADC.
+#[allow(dead_code)]
+pub unsafe fn init_adc(_p: &hal::pac::Peripherals) {
+    // NOTE: Lpuart has been updated to properly enable + reset its own clocks.
+    // GPIO has not.
+    _ = clocks::enable_and_reset::<hal::peripherals::PORT1>(&clocks::NoConfig);
+    pins::configure_adc_pins();
+}