/* * Copyright (c) 2006-2021, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2020-01-08 shelton first version */ #include #include #include "board.h" #include "drv_gpio.h" /* defined the LED2 pin: PD13 */ #define LED2_PIN GET_PIN(D, 13) /* defined the LED3 pin: PD14 */ #define LED3_PIN GET_PIN(D, 14) /* defined the LED4 pin: PD15 */ #define LED4_PIN GET_PIN(D, 15) int main(void) { uint32_t Speed = 200; /* set LED2 pin mode to output */ rt_pin_mode(LED2_PIN, PIN_MODE_OUTPUT); /* set LED3 pin mode to output */ rt_pin_mode(LED3_PIN, PIN_MODE_OUTPUT); /* set LED4 pin mode to output */ rt_pin_mode(LED4_PIN, PIN_MODE_OUTPUT); while (1) { rt_pin_write(LED2_PIN, PIN_LOW); rt_thread_mdelay(Speed); rt_pin_write(LED3_PIN, PIN_LOW); rt_thread_mdelay(Speed); rt_pin_write(LED4_PIN, PIN_LOW); rt_thread_mdelay(Speed); rt_pin_write(LED2_PIN, PIN_HIGH); rt_thread_mdelay(Speed); rt_pin_write(LED3_PIN, PIN_HIGH); rt_thread_mdelay(Speed); rt_pin_write(LED4_PIN, PIN_HIGH); rt_thread_mdelay(Speed); } }