1 /*
2 *
3 * SPDX-License-Identifier: Apache-2.0
4 *
5 * Change Logs:
6 * Date Author Notes
7 * 2020-09-05 DongBowen first version
8 */
9
10 #include "board.h"
11
12 #include <rtthread.h>
13 #include <rtdevice.h>
14
15 #define LED_PIN GET_PIN(C, 13)
16 #define LED_PERIOD (RT_TICK_PER_SECOND / 5)
17
18 #define KEY_PIN GET_PIN(B, 12)
19
key_handle(void * args)20 void key_handle(void *args)
21 {
22 rt_kprintf("key pressed!\n");
23 }
24
main(void)25 int main(void)
26 {
27 rt_pin_mode(KEY_PIN, PIN_MODE_INPUT_PULLUP);
28 rt_pin_attach_irq(KEY_PIN, PIN_IRQ_MODE_FALLING, key_handle, RT_NULL);
29 rt_pin_irq_enable(KEY_PIN, PIN_IRQ_ENABLE);
30
31 rt_pin_mode(LED_PIN, PIN_MODE_OUTPUT);
32
33 while (1)
34 {
35 rt_pin_write(LED_PIN, PIN_HIGH);
36 rt_thread_delay(LED_PERIOD / 2);
37 rt_pin_write(LED_PIN, PIN_LOW);
38 rt_thread_delay(LED_PERIOD / 2);
39 };
40
41 }
42
43