int.c

用51单片机实现的在屏幕上显视文字,外接一颗MT230OSDIC

#include "golbal.h"
/*--------------------------------;
;				Int1
;---------------------------------*/
void inten_int1(void) interrupt 2 using 2
{
EA=0;
if( ( byM230_IIC_INTFLG&0x40 ) !=0 ) // Received data
{
  if (byM230_IIC_TXRCBBUF == 0x1f) // 77 is enter ISP mode command code
  {
	IE=0;
	byM230_WDT=0;
	byM230_ISPSLV=0x7c;
	byM230_ISPEN=0x93;
	PCON=1;
  }
 }
EA=1;
}

/*-----------------------------------;
;			Timer0 interrupt
;------------------------------------*/
void Timer0(void) interrupt 1 using 1
{
   #ifdef OSC12M
   TH0 = HiByte(65536-TIME_BASE1*1000);   //set next interrupt time TIME_BASE1 ms
   TL0 = LoByte(65536-TIME_BASE1*1000);
   #else
   	#ifdef OSC24M
   	TH0 = HiByte(65536-TIME_BASE1*2000);   //set next interrupt time TIME_BASE1 ms
   	TL0 = LoByte(65536-TIME_BASE1*2000);
   	#else
   //not define osc12m or osc24m
   	#endif
   #endif

/*
   if(IICWait)
   {
      IICWait--;
   }
*/
   if(DelayCount)
   {
      DelayCount--;
   }

	 if(KeyTime) 
	 	KeyTime--;

	return;
}