timer.c

与C51相关模块LCD,24CXX,等的源代码程序

/******************************************************
DESIGN FOR TIMER USE
Designer: BH Zhang
Date:2006-1-11
Ver:1.0
Modify Mark:NONE
*******************************************************/
#include <at89x51.h>
#include "timer.h"
#include "rf315mhz.h"
#include "dfq.h"
#include "4X4Key.h"
//------------------------------------------------------
void InitTime(void){
	TMOD&=T1_MASK_;
	TMOD|=T0_M0_|T0_M1_;	//T0 Work on Mode 3
	ET0=1;					//Enable T0 Interrupt

	TH0=T1OverFlow;

	TL0=T0OverFlow;

	//PTO=0;
	//USE SERIAL COM,T1 NOT NEED INIT
	//TMOD&=T0_MASK_;
	//TMOD|=T1_M0_|T1_M1_;	//T1 Work on Mode 3
	ET1=1;					//Enable T1 Interrupt
	//TH1=0xEE;
	//TL1=0x10;
	PT1=1;
}
//------------------------------------------------------
unsigned int T0DispDelay=2000;
unsigned char T0KeyDelay=200;
unsigned int T0250usDelay=0;
//------------------------------------------------------
void timers0() interrupt 1
{
	TL0=T0OverFlow;

	if(nCurMode!=SEND){
		if(--T0DispDelay==0){
			T0DispDelay=2000;
			Display();
		}
	}
	
	if(nCurMode==KEY){
		if(nKey==NOKEY)if(--T0KeyDelay==0){
			T0KeyDelay=200;
			nKey=GetKey();
		}
	}
	
	if(T0250usDelay)T0250usDelay--;
}
//------------------------------------------------------
void timers1() interrupt 3
{
	TH0=T1OverFlow;
	nCodeLen++;			//record length per bit
}
//------------------------------------------------------