1 /*
2  * Copyright (c) 2006-2021, RT-Thread Development Team
3  *
4  * SPDX-License-Identifier: Apache-2.0
5  *
6  * Change Logs:
7  * Date           Author       Notes
8  * 2019-01-06     jinsheng   first version
9  */
10 
11 #include <rtthread.h>
12 #include <rtdevice.h>
13 #include <board.h>
14 
15 /* defined the LED1 pin: PI1 */
16 #define LED1_PIN    GET_PIN(I, 1)
17 
main(void)18 int main(void)
19 {
20     /* set LED1 pin mode to output */
21     rt_pin_mode(LED1_PIN, PIN_MODE_OUTPUT);
22 
23     while (1)
24     {
25         rt_pin_write(LED1_PIN, PIN_HIGH);
26         rt_thread_mdelay(500);
27         rt_pin_write(LED1_PIN, PIN_LOW);
28         rt_thread_mdelay(500);
29     }
30 }
31