/* * Copyright (c) 2006-2018, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2020-09-09 forest-rain first version */#include <rtthread.h>#include <rtdevice.h>#include <board.h>/* STM32WL55JC_NUCLEO Color led */#define LED_BLUE_PIN GET_PIN(B,15) /* defined the LED_BLUE pin: PB15 */#define LED_GREEN_PIN GET_PIN(B,9)#define LED_RED_PIN GET_PIN(B,11)intmain(void){intcount=1;/* set LED_BLUE pin mode to output */rt_pin_mode(LED_BLUE_PIN,PIN_MODE_OUTPUT);while(count++){rt_pin_write(LED_BLUE_PIN,PIN_HIGH);rt_thread_mdelay(500);rt_pin_write(LED_BLUE_PIN,PIN_LOW);rt_thread_mdelay(500);}returnRT_EOK;}