/* * Copyright (c) 2006-2021, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2018-11-06 SummerGift first version */ #include #include #include /* defined the LED4 pin: PB1 */ #define LED4_PIN GET_PIN(B, 1) int main(void) { /* set LED0 pin mode to output */ rt_pin_mode(LED4_PIN, PIN_MODE_OUTPUT); while (1) { rt_pin_write(LED4_PIN, PIN_HIGH); rt_thread_mdelay(500); rt_pin_write(LED4_PIN, PIN_LOW); rt_thread_mdelay(500); } }