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blink-4.c 259 B
#include <avr/io.h>
#define F_CPU 16000000
#include <util/delay.h>
int main (void)
{
DDRD = 0x01;
PORTD = 0x01;
while (1)
{
while ((PIND & 0x02) == 0)
; /* just wait */
PORTD ^= 0x01;
_delay_ms (200);
}
return 0;
}