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編寫 rgb 彩燈運行線程，三種顏色依次切換，中間延時 1s

static void rgb_thread_entry(void* p) { RGB_Init(); while(1) { rt_thread_mdelay(1000); RGB_Blue(1); rt_thread_mdelay(1000); RGB_Green(1); rt_thread_mdelay(1000); RGB_Red(1); } }

創建線程啟動函數，用于啟動上一步編寫的線程主體

static int Thread_RGB(void) { rt_thread_t thread = RT_NULL; thread = rt_thread_create("rgb", rgb_thread_entry, RT_NULL, 512, 10, 10); if(thread == RT_NULL) { rt_kprintf("Thread_GRB Init ERROR"); return RT_ERROR; } rt_thread_startup(thread); }

添加將線程初始化添加入系統初始化中 INIT_APP_EXPORT(Thread_RGB);