28 lines
542 B
C
28 lines
542 B
C
#include "delay.h"
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int main(void) {
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// PC2 as output (LED), PC3 as input (button)
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timer1_init();
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DDRB |= (1<<PB2);
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DDRB &= ~(1<<PB3);
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// enable internal pull-up on PC3 (important)
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PORTB |= (1<<PB3);
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timer1_init();
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while(1) {
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// Button pressed -> pin reads LOW because of pull-up
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if (PINB & (1<<PB3)) {
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for (int i=0;i<=20;i++){
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PORTB |= (1<<PB2); // LED ON
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delay_ms(200);
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PORTB &= ~(1<<PB2);
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delay_ms(200);
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}
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} else {
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PORTB &= ~(1<<PB2); // LED OFF
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}
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}
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} |