led.c

picc_18v 8.35pl35 PIC18系列单片机开发C编译器

#include <pic18.h>

/*
 * a trivial program to count up in binary the value on PORT D.
 * The program will run on PIC18C4x2 chips.
 */

void delay(unsigned int count);

unsigned char value;

void
main(void)
{
	PORTD = 0x00;
	TRISD = 0x00;
	value = 0;

	while(1) {
		PORTD = value++;
		delay(10000);
	}
}

void
delay(unsigned int count)
{
	while(count--)
		;
	return;
}