sdk/.vscode/settings.json

{
    "files.associations": {
        "hk32f030m.h": "c",
        "usart_printf.h": "c",
        "demo.h": "c",
        "stdio.h": "c",
        "board_cfg.h": "c",
        "limits": "c",
        "type_traits": "c"
    }
}