text1.c

ADC0809的51驱动及应用工程

#include <at89x51.h>
#define COUNT 1000
sbit sta=P3^3;
sbit eoc=P3^4;
sbit oc=P3^2;
sbit a=P2^4;
sbit b=P2^5;
sbit c=P2^6;
sbit ale=P2^7;
const seven_seg[20]={0X3F,0X06,0X5B,0X4F,0X66,0X6D,0X7D,0X07,0X7F,0X6F,0XBF,0X86,0XDB,0XCF,0XE6,0XED,0XFD,0X87,0XFF,0XDF};
//const seven_seg[20]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10};//////ssssssssssssssssssssssss
unsigned  int gv=0,mid=0;
unsigned char tran=0,g=1,one=0,two=0,three=0,i,j=0;
void scanclock(void) interrupt TF0_VECTOR using 2//计时1ms
{	
	P2_3=1;P2_2=1;P2_1=1;P2_0=1;
//	P2_3=0;P2_2=0;P2_1=0;P2_0=0;
	TR0=0;	
	TL0=(8192-COUNT)%32;
	TH0=(8192-COUNT)/32;
	TR0=1;
	if(eoc==1)//1111111111111111111111111111111111	
	{
		oc=1;
		tran=P0;
		gv=(int)tran*192;//4.9/255=0.01921
		sta=0;
		sta=1;
		sta=0;
	}
	g=(unsigned char)(gv/10000);
	mid=gv%10000;
	one=(unsigned char)(mid/1000);
	gv=mid%1000;
	two=(unsigned char)(gv/100);
	mid=gv%100;
	three=(unsigned char)(mid/10);
//-----------------------------------------
	P1=seven_seg[g+10];
	P2_3=0;P2_2=1;P2_1=1;P2_0=1;
//	P2_3=1;P2_2=0;P2_1=0;P2_0=0;
	for(i=0;i<100;i++);
//---------------------------------
	P1=seven_seg[one];
	//for(i=0;i<2;i++);
	P2_3=1;P2_2=0;P2_1=1;P2_0=1;
//	P2_3=0;P2_2=1;P2_1=0;P2_0=0;
	for(i=0;i<100;i++);
//-------------------------------------
	P1=seven_seg[two];
	//for(i=0;i<2;i++);
	P2_3=1;P2_2=1;P2_1=0;P2_0=1;
//	P2_3=0;P2_2=0;P2_1=1;P2_0=0;
	for(i=0;i<100;i++);
//---------------------------------------
	P1=seven_seg[three];
	//for(i=0;i<2;i++);
	P2_3=1;P2_2=1;P2_1=1;P2_0=0;
//	P2_3=0;P2_2=0;P2_1=0;P2_0=1;
	for(i=0;i<100;i++);
//----------------------------------------
	gv=0;

}
void main()
{
	ale=0;
	//TMOD=0x00;
	TMOD=0X20;
	//IE=0x02;
	IE=0x0a;
	IP=0x08;//02
	SCON=0x50;
	//PCON=SMOD_;//
	PCON=0X00;
	TL0=(8192-COUNT)%32;
	TH0=(8192-COUNT)/32;
	TL1=253;
	TH1=253;
	EA=1;
	a=0;
	b=0;
	c=0;
	ale=1;	
	TR0=1;
	TR1=1;
	TI=1;
	sta=0;
	sta=1;
	sta=0;
	while(1)
	{
	if(P3_7==0){
	while(P3_7==0);
	{
		//while(j<250)
		//{j++;}
		while(TI!=1);
		TI=0;
		SBUF=g+48;
		while(TI!=1);
		TI=0;
		SBUF='.';
		while(TI!=1);
		TI=0;
		SBUF=one+48;
		while(TI!=1);
		TI=0;
		SBUF=two+48;
		while(TI!=1);
		TI=0;
		SBUF=three+48;
		while(TI!=1);
		TI=0;
		SBUF='V';
	//	j=0;
	}}
//******************************************************注，led显示亮度不均匀，
	for(j=0;j<100;j++);
	for(i=0;i<100;i++);
	P2_3=1;P2_2=1;P2_1=1;P2_0=1;
//	P2_3=0;P2_2=0;P2_1=0;P2_0=0;
	TR0=0;	
	TL0=(8192-COUNT)%32;
	TH0=(8192-COUNT)/32;
	TR0=1;
	if(eoc==1)//1111111111111111111111111111111111	
	{
		oc=1;
		tran=P0;
		gv=(int)tran*192;//4.9/255=0.01921
		sta=0;
		sta=1;
		sta=0;
	}
	g=(unsigned char)(gv/10000);
	mid=gv%10000;
	one=(unsigned char)(mid/1000);
	gv=mid%1000;
	two=(unsigned char)(gv/100);
	mid=gv%100;
	three=(unsigned char)(mid/10);
//-----------------------------------------
	P1=seven_seg[g+10];
	P2_3=0;P2_2=1;P2_1=1;P2_0=1;
//	P2_3=1;P2_2=0;P2_1=0;P2_0=0;
	for(i=0;i<100;i++);
//---------------------------------
	P1=seven_seg[one];
	//for(i=0;i<2;i++);
	P2_3=1;P2_2=0;P2_1=1;P2_0=1;
//	P2_3=0;P2_2=1;P2_1=0;P2_0=0;
	for(i=0;i<100;i++);
//-------------------------------------
	P1=seven_seg[two];
	//for(i=0;i<2;i++);
	P2_3=1;P2_2=1;P2_1=0;P2_0=1;
//	P2_3=0;P2_2=0;P2_1=1;P2_0=0;
	for(i=0;i<100;i++);
//---------------------------------------
	P1=seven_seg[three];
	//for(i=0;i<2;i++);
	P2_3=1;P2_2=1;P2_1=1;P2_0=0;
//	P2_3=0;P2_2=0;P2_1=0;P2_0=1;
	for(i=0;i<100;i++);
//----------------------------------------
	gv=0;
	P2_3=1;P2_2=1;P2_1=1;P2_0=1;//可能好多了，应该一样亮
	}
}