time.c

58enc28j06protuesuip09.rar

#include "reg52.h"
#include "myopt.h"
#include "time.h"



unsigned int  Count1msInc;
unsigned char Count1ms,Count10ms,Count1s;
unsigned char TimeSecond,TimeMinute;

/******************************************************************************
**timer0  init
**Value：
**Return Value：
**Parameters：   
******************************************************************************/
void TIME0_Init()
{
  Count10ms=10;
  Count1s=0;
  TMOD |= 0x01;							    /*16Bit	 方式1 16位计数器/定时器*/
  TR0  = 0;
  TH0  = (-SYSCLK/1000/12) >> 8;	        /* set Timer0 to overflow in 1ms*/
  TL0  = -SYSCLK/1000/12;
  TR0  = 1;
  IE|= 0x2;

  
}
/******************************************************************************
**timer0_interrupt	 interrupt 1
**Value：
**Return Value：
**Parameters：：   1ms overtime 
******************************************************************************/

void timer0_interrupt(void) interrupt 1		/*1ms 溢出*/
{
  
  TH0 = (-SYSCLK/1000/12) >> 8;  		   
  TL0 = -SYSCLK/1000/12;;


  if (Count1ms) Count1ms--;
	  Count1msInc++;
  if (Count10ms) Count10ms--;

  else
	{
		Count10ms=10;    			/*10ms*/
		GREEN =1;
		if (Count1s) Count1s--;
		
		else
		{
			GREEN =0;
			Count1s=100;			/*1s*/
			TimeSecond++;
			if (TimeSecond>=60)
			{
				TimeSecond=0;		/*1min*/
				TimeMinute++;
				if	(TimeMinute==60)	TimeMinute=0;
			}
		}
	}
}

/*just end*/