app/led.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42

#include "project.h"


#define LED GPIO13
#define LED_PORT GPIOC

static int led = 0;

void
led_init (void)
{
  MAP_OUTPUT_OD(LED);
  SET(LED);

}


void
led_clear (void)
{
  SET(LED);
  led =0;
}

void
led_set (void)
{
  CLEAR(LED);
  led = 200;
}

void
led_tick (void)
{
  if (led)
    {
      led--;
      if (!led)
        led_clear ();
    }

}