blob: 23f0b6001f0f97938e2ada0643290be8e0f54e6f (
plain)
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
43
|
#include "arch.h"
#include "driver/gpio.h"
#include "driver/stdout.h"
#include "driver/timer.h"
#include "driver/uptime.h"
#ifndef F_TIMER
#define F_TIMER 100000
#endif
volatile unsigned long int timer_val = 0;
void loop(void)
{
gpio.led_toggle(1);
kout << "Actual frequency: approx. " << timer_val << " Hz" << endl;
timer_val = 0;
}
int main(void)
{
arch.setup();
gpio.setup();
kout.setup();
#if F_TIMER > 999
timer.setup_khz(F_TIMER / 1000);
#else
timer.setup_hz(F_TIMER);
#endif
timer.start(1);
gpio.led_on(0);
kout << "Timer running at " << dec << F_TIMER << " Hz" << endl;
arch.idle_loop();
return 0;
}
ON_TIMER_INTERRUPT_head
gpio.led_toggle(0);
timer_val++;
ON_TIMER_INTERRUPT_tail
|