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Last change
on this file since 26d7f34 was 26d7f34, checked in by Adrien Destugues <pulkomandy@…>, 14 years ago |
Ajout de blinkdel (projet de test basique) et beep (synthèse musicale sur atmega8)
git-svn-id: svn://pulkomandy.tk/avrstuff@20 c6672c3c-f6b6-47f9-9001-1fd6b12fecbe
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File size:
570 bytes
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[26d7f34] | 1 | #include <avr/io.h>
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| 2 | #include <avr/interrupt.h>
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| 3 | #include <avr/wdt.h>
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| 4 | #include <avr/pgmspace.h>
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| 5 | #include <util/delay.h>
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| 6 |
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| 7 | #include <string.h>
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| 8 | #include <stdbool.h>
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| 9 |
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| 10 | int main() {
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| 11 | wdt_enable(WDTO_2S);
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| 12 | // configure timer 0 for a rate of 16M/(256 * 256) = ~244Hz
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| 13 | TCCR0 = 4; // timer 0 prescaler: 256
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| 14 |
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| 15 | //debug LED - output
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| 16 | DDRB |= 255;
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| 17 |
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| 18 | PORTB = 0xAA;
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| 19 |
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| 20 | while(1) {
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| 21 | wdt_reset();
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| 22 |
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| 23 |
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| 24 | // check timer if we need periodic reports
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| 25 | if (TIFR & (1 << TOV0)) {
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| 26 | TIFR = (1 << TOV0); // reset flag
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| 27 | PORTB++;
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| 28 | }
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| 29 | }
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| 30 |
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| 31 | return 0;
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| 32 | }
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| 33 |
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