lmao

Makefile

@@ -6,11 +6,22 @@ CMAKE_ZEPHYR_PATH=../zephyrproject/zephyr
 CMAKE_ZEPHYR_COMMAND=west build
 CMAKE_ZEPHYR_FLAGS=-b $(TARGET)
 
-all: compile flash
+all: compile flash_pico
+
+setup:
+	west init
+	west update
 
 compile:
 	$(CMAKE_ZEPHYR_COMMAND) $(CMAKE_ZEPHYR_FLAGS)
 	cp build/zephyr/zephyr.uf2 ./zephyr.uf2
+	echo "Copied zephyr.uf2 to project root"
+
+flash_pico:
+	# mount then copy the uf2
+	sudo mount -L RPI-RP2 /mnt
+	sudo cp zephyr.uf2 /mnt
+	echo "Copied zephyr.uf2 to pico"
 
 # FIXME: This is entirely board specific, for example the pi pico will vibe differently
 flash:

boards/rpi_pico.overlay

@@ -1,3 +1,12 @@
 &spi1 {
+	compatible = "raspberrypi,pico-spi", "arm,pl022";
+    cs-gpios = <&gpio0 9 GPIO_ACTIVE_LOW>;
+#address-cells = <1>;
+#size-cells = <0>;
+    reg = <0x40040000 DT_SIZE_K(4)>;
+    resets = <&reset RPI_PICO_RESETS_RESET_SPI1>;
+    clocks = <&peripheral_clk>;
+    interrupts = <19 RPI_PICO_DEFAULT_IRQ_PRIORITY>;
+    interrupt-names = "spi1";
     status = "okay";
 };

prj.conf

@@ -1,3 +1,4 @@
 CONFIG_BUILD_OUTPUT_UF2=y
 CONFIG_GPIO=y
-CONFIG_SPI=y
+CONFIG_SPI_ASYNC=y
+CONFIG_SPI_PL022_INTERRUPT=y

src/main.c

@@ -21,18 +21,25 @@ static const struct gpio_dt_spec led = GPIO_DT_SPEC_GET(LED0_NODE, gpios);
 
 void main(void)
 {
-    // set up the led
-    while (!device_is_ready(led.port)) { }
-    gpio_pin_configure_dt(&led, GPIO_OUTPUT_ACTIVE);
-    gpio_pin_set_dt(&led, GPIO_OUTPUT_LOW);
+    while (!device_is_ready(spi1_dev)) {
         
-    while (!device_is_ready(spi1_dev)) { }
+    }
 
-    gpio_pin_set_dt(&led, GPIO_OUTPUT_HIGH);
+	if (!device_is_ready(led.port)) {
+		return;
+	}
+
+	int ret = gpio_pin_configure_dt(&led, GPIO_OUTPUT_ACTIVE);
+	if (ret < 0) {
+		return;
+	}
 
 	while (1) {
+		ret = gpio_pin_toggle_dt(&led);
+		if (ret < 0) {
+			return;
+		}
 		k_msleep(500);
-        gpio_pin_toggle_dt(&led);
 	}
 }