微處理器 - Raspberry Pi RP2040 (Pico) - C/C++ - LED

參考資訊：
https://www.digikey.com/en/maker/projects/raspberry-pi-pico-and-rp2040-cc-part-1-blink-and-vs-code/7102fb8bca95452e9df6150f39ae8422

LED腳位


main.c

#include <stdio.h>
#include "pico/stdlib.h"

#define LED 25

void main(void)
{
    gpio_init(LED);
    gpio_set_dir(LED, GPIO_OUT);

    while (1) {
        gpio_put(LED, true);
        sleep_ms(1000);
        gpio_put(LED, false);
        sleep_ms(1000);
    }
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.12)
include($ENV{PICO_SDK_PATH}/external/pico_sdk_import.cmake)
project(blink C CXX ASM)
set(CMAKE_C_STANDARD 11)
set(CMAKE_CXX_STANDARD 17)
pico_sdk_init()
add_executable(${PROJECT_NAME} 
    main.c
)

pico_add_extra_outputs(${PROJECT_NAME})
target_link_libraries(${PROJECT_NAME} 
    pico_stdlib
)

pico_enable_stdio_usb(${PROJECT_NAME} 1)
pico_enable_stdio_uart(${PROJECT_NAME} 0)

編譯

$ export PICO_SDK_PATH=/opt/pico-sdk
$ cmake .
$ make

按住BOOTSEL後，連接USB到電腦，然後把blink.uf2複製到RP2隨身碟即可完成燒錄