main
Last change
on this file was 6f22754, checked in by Adrien Destugues <pulkomandy@…>, 5 years ago |
blinkled: cleanup a bit
I get bored of editing too much things in there after a while...
|
-
Property mode
set to
100644
|
File size:
915 bytes
|
Line | |
---|
1 | #include <avr/io.h>
|
---|
2 | #include <avr/interrupt.h>
|
---|
3 | #include <avr/wdt.h>
|
---|
4 | #include <avr/pgmspace.h>
|
---|
5 | #include <util/delay.h>
|
---|
6 |
|
---|
7 | #include <string.h>
|
---|
8 | #include <stdbool.h>
|
---|
9 |
|
---|
10 | #if defined(__AVR_ATmega8__)
|
---|
11 | #define _TCCA TCCR1A
|
---|
12 | #define _TCCB TCCR1B
|
---|
13 | #define _TIFR TIFR
|
---|
14 | #define _TOV TOV1
|
---|
15 | #elif defined(__AVR_ATmega48P__)
|
---|
16 | #define _TCCA TCCR0A
|
---|
17 | #define _TCCB TCCR0B
|
---|
18 | #define _TIFR TIFR0
|
---|
19 | #define _TOV TOV0
|
---|
20 | #else
|
---|
21 | #error Unknown device! Add it to main.c and set the timer properly
|
---|
22 | #endif
|
---|
23 |
|
---|
24 | int main() {
|
---|
25 | wdt_enable(WDTO_2S);
|
---|
26 | // configure timer 0 for a rate of 16M/(256 * 256) = ~244Hz
|
---|
27 | _TCCA = 0; // timer 0 prescaler: 256
|
---|
28 | _TCCB = 4;
|
---|
29 |
|
---|
30 | //debug LED - output
|
---|
31 | DDRD |= (1<<PD6);
|
---|
32 |
|
---|
33 | PORTD = 0;
|
---|
34 |
|
---|
35 | while(1) {
|
---|
36 | wdt_reset();
|
---|
37 |
|
---|
38 |
|
---|
39 | // check timer if we need periodic reports
|
---|
40 | if (_TIFR & (1 << _TOV)) {
|
---|
41 | _TIFR = (1 << _TOV); // reset flag
|
---|
42 | PORTD ^= (1<<PD6);
|
---|
43 | }
|
---|
44 | }
|
---|
45 |
|
---|
46 | return 0;
|
---|
47 | }
|
---|
48 |
|
---|
Note:
See
TracBrowser
for help on using the repository browser.