如何在VSCode中为RP2040(Pico)配置IntelliSense

我查过类似问题，但没找到有效解决方案，可能是漏了关键步骤。

现在我在VSCode里给RP2040（Pico）配置IntelliSense，已经能用CMake成功构建项目，还把程序传到MCU上跑起来了，但IntelliSense没法像处理普通C/C++文件那样正常工作——哪怕直接指定pico-sdk目录的精确路径（比如.h和.c文件的位置），它还是找不到、识别不了SDK里的库。

我的项目里的c_cpp_properties.json内容如下：

{
    "configurations": [
        {
            "name": "RP2040",
            "includePath": [
                "${workspaceFolder}/**",
                "C:/Users/Julio/VSARM/sdk/pico/pico-sdk/src/**",
                "${env:PICO_SDK_PATH}/**",
                "${workspaceFolder}/build/pico-sdk/**"
            ],
            "defines": [
                "_DEBUG",
                "UNICODE",
                "_UNICODE"
            ],
            "windowsSdkVersion": "10.0.22000.0",
            "compilerPath": "C:/Users/Julio/VSARM/armcc/10 2021.10/bin/arm-none-eabi-gcc.exe",
            "intelliSenseMode": "gcc-arm",
            "cStandard": "c11",
            "cppStandard": "c++17",
            "configurationProvider": "ms-vscode.makefile-tools"
        }
    ],
    "version": 4
}

我试过好几个我觉得是库所在位置的路径，但都没用。其中"${workspaceFolder}/build/pico-sdk/**"是因为CMake构建时会在build文件夹里生成pico-sdk目录，原以为这样配置能生效，但还是不行。

附上我的CMakeLists.txt供参考：

cmake_minimum_required(VERSION 3.12)

# Pull in SDK (must be before project)
include(pico_sdk_import.cmake)

project(blink C CXX ASM)
set(CMAKE_C_STANDARD 11)
set(CMAKE_CXX_STANDARD 17)

# Initialize the SDK and include the libraries
pico_sdk_init()

# Tell CMake where to find the executable source file
add_executable(${PROJECT_NAME} 
    main.c
)

# Create map/bin/hex/uf2 files
pico_add_extra_outputs(${PROJECT_NAME})

# Link to pico_stdlib (gpio, time, etc. functions)
target_link_libraries(${PROJECT_NAME} 
    pico_stdlib
)

# Enable usb output, disable uart output
pico_enable_stdio_usb(${PROJECT_NAME} 1)
pico_enable_stdio_uart(${PROJECT_NAME} 0)

add_compile_options(-Wall
        -Wno-format          # int != int32_t as far as the compiler is concerned because gcc has int32_t as long int
        -Wno-unused-function # we have some for the docs that aren't called
        -Wno-maybe-uninitialized
        )

有没有办法让VSCode的IntelliSense和CMake配合工作？这样应该能解决问题吧？我确认项目构建没问题，所以应该是VSCode这边的配置问题。

更新：在尝试用CMake做IntelliSense提供程序之前，我偶然让IntelliSense识别到了Pico的库——当时我同时打开了一个无关的C++项目，某个扩展自动配置后就好了，但我不知道具体原因。这显然不是规范的解决方法，所以还是想尝试通过CMake来正确配置。

内容的提问来源于stack exchange，提问作者Some random guy