20 lines
406 B
C
20 lines
406 B
C
#include <avr/io.h>
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#include <util/delay.h>
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#define BLINK_DELAY_MS 1000
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int main (void)
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{
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/* set pin 25 of PORTB for output*/
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DDRA |= _BV(DDA3);
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while (1) {
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/* set pin 25 high to turn led on */
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PORTA |= _BV(PORTA3);
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_delay_ms(BLINK_DELAY_MS);
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/* set pin 25 low to turn led off */
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PORTA &= ~_BV(PORTA3);
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_delay_ms(BLINK_DELAY_MS);
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}
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}
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