1 /*
2  * Copyright (c) 2006-2023, RT-Thread Development Team
3  *
4  * SPDX-License-Identifier: Apache-2.0
5  *
6  * Change Logs:
7  * Date           Author       Notes
8  * 2023-01-10     luobeihai    first version
9  */
10 
11 #include <rtthread.h>
12 #include <rtdevice.h>
13 #include <board.h>
14 
15 /* defined the LED1 pin: PC0 */
16 #define LED1_PIN    GET_PIN(C, 0)
17 
main(void)18 int main(void)
19 {
20     uint32_t sysclock = 0;
21     /* set LED1 pin mode to output */
22     rt_pin_mode(LED1_PIN, PIN_MODE_OUTPUT);
23 
24     /* Print system clock */
25     sysclock = RCM_ReadSYSCLKFreq();
26     rt_kprintf("System Clock: %d\n", sysclock);
27 
28     while (1)
29     {
30         rt_pin_write(LED1_PIN, PIN_HIGH);
31         rt_thread_mdelay(500);
32         rt_pin_write(LED1_PIN, PIN_LOW);
33         rt_thread_mdelay(500);
34     }
35 }
36