电压表的程序，但是没有成功！！帮忙解决！！谢谢！！
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
uchar code dispcode[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
uchar dispbuf[4]={0,0,0,0};
uchar temp;
uchar getdata;
uint i,j;
void delay();
sbit OE=P3^0;
sbit CLK=P3^1;
sbit START=P3^2;
sbit EOC=P3^3;
void delay()///延时//
{
uchar i;
uchar j;
for(i=0;i<=10;i++)
for(j=0;j<=250;j++);
}
void main()
{
START=0;
OE=0;
ET0=1;
ET1=1;
EA=1;
TMOD=0x12;//定时器T1工作1，定时器T0为工作2方式；
TL0=216;
TH0=216;
TL1=(65536-4000)/256;
TH1=(65536-4000)%256;
TR1=1;
TR0=1;
START=1;
START=0;
while(1)
{
if(EOC==1) //==A/D转换完成==//
{
OE=1; //允许取数据///
getdata=P1;//取数据//
OE=0;
temp=getdata*500;
temp=temp/256;
dispbuf[0]=temp/100;
dispbuf[1]=temp%100/10;
dispbuf[2]=temp%100%10;
START=1;
START=0;
}
}
}
void t0(void) interrupt 1 using 0
{CLK=~CLK;}//时钟信号//
void t1(void) interrupt 3 using 0
{
TL1=(65536-4000)/256;
TH1=(65536-4000)%256; //重新装入//
P2=0x01;
P0=dispcode[dispbuf[0]];
delay();
P2=0x02;
P0=dispcode[dispbuf[1]];
delay();
P2=0x04;
P0=dispcode[dispbuf[2]];
delay();
} |
楼主
标题置顶
标题高亮
