a2disr.c

来自「picc_18v 8.35pl35 PIC18系列单片机开发C编译器」· C语言 代码 · 共 26 行

#include <pic18.h>
#include "a2demo.h"
#include <stdio.h>

void interrupt ISR(void)
{
	if((RBIE)&&(RBIF))
	{
		if(UPCHANNEL)
		{
			CHANNEL++;
			LEDCHAN<<=1;
			if(LEDCHAN==0)
				LEDCHAN=1;
		}
		if(DOWNCHANNEL)
		{
			CHANNEL--;
			LEDCHAN>>=1;
			if(LEDCHAN==0)
				LEDCHAN=0x80;
		}
		RBIF=0;
	}
}