inttrup.c

16路巡检仪 该仪表采用c语言编写

#include <AT89X52.H>
#include "head.h"
extern	uchar	keyn,Chose,TMing1,VFport;
extern	uchar	xdata	LEDbuf[8];
extern	uint	tming3;
uint	xdata	TMing2=0;
uchar	count,kcout,jitter,jiasu,KEYbuf[4],Refreshtime=settime,countt=1;
uchar	vfmark=0;
uchar	VFnowt=0;
uchar	tt=0;
uchar	xj=xjian;
extern	float	xdata	PV[road];
void VFtime()
{
	VFnowt--;
	if(vfmark==0)
		{	
			if(VFnowt==VFGETT)
				{	
					TMOD=0x53;
					TH0=0;TL0=0;
					TH1=0;TL1=0;TR1=1;
				}
			if(VFnowt==0)
				{	
					TMOD=0x73;
					vfmark=1;
					
				}	
		}
}


void LEDtime()
{	uchar  txdat;	
	Refreshtime--;						//时间定为2MS刷新一次显示数据(当系统晶振为6MHZ)
	if(Refreshtime==0)
		{	xj--;
			if(xj==0)
				{
					tming3++;
					xj=xjian;
				}
			Refreshtime=settime;		//重装刷新时间
			if(count<Screen) 			//判断是否扫描一遍LED
				count++;
			else 
				count=1;
			txdat=count-1;
			if(txdat==0)				//当点亮的LED是第一个时,DISDATA为1，其余的为0
				DISDATA=1;
			else	
				DISDATA=0;
			displaydata=LEDbuf[txdat];
			LEDclk;						//	输出一脉冲供给74HC164做时钟
			if(KEYin==1)
	{	TMing2=0;	
		tt=0;
		switch(count-1)			//扫描哪个键盘被按下
		{
			case	0x04:		KEYbuf[kcout]=ADDdata;
			break;
			case	0x05:		KEYbuf[kcout]=SET;
			break;
			case	0x06:		KEYbuf[kcout]=AM;
			break;
			case	0x07:		KEYbuf[kcout]=SUBdata;
			break;
			default:;
		}
		kcout++;
		if(kcout>1)
			kcout=0;
		if(KEYbuf[0]==KEYbuf[1])	//扫描延时
		{	jitter++;				//判断键盘是否有没按下
			jiasu++;
		}
		else
			{
				jiasu=0;
				jitter=0;			//无键盘按下
			}		
		if(jitter==30)				//给键盘赋值
			{	
				keyn=KEYbuf[1];
				jitter=0;	
			}
		if(jiasu>=200)				//当条件成立时，键盘加速
			{
				if((KEYbuf[0]==ADDdata)|(KEYbuf[0]==SUBdata)) //是加、减键时加速
				{
					if((Chose!=syscsdisplay)&&(Chose!=fundisplay)&&(Chose!=teshucsdisplay))
						keyn=KEYbuf[1];
				}
				jiasu=195;
					
			}
		}
		else
				{
					TMing2++;
					tt++;
					if(tt>=8)
					{
						jiasu=0;
						tt=0;
					}
				}
					
		}

}


void  Time0(void)interrupt	1   			//T0中断处理
{	
	VFtime();    					//采样中断处理
	LEDtime();	 					// LED中断处理
}