数据采集系统程序.c

来自「基于AT89C51的单片机数据采集系统的程序代码」· C语言 代码 · 共 58 行

#include <reg51.h>
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int
uchar tv[]={0xfe,0xfd,0xfb};
uchar a[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e};
uchar tvdata;

sbit  start=P3^0;
sbit  oe=P3^1;
sbit  eoc=P3^2;

delay(uint t)
{
while(t--);
}
ad0809()
{
 start=0;
 _nop_();_nop_();
 start=1; 
_nop_();_nop_();
start=0;
 
 
 while(eoc==0);
 oe=1;
 tvdata=P0;
 oe=0;
}
smsm()
{
 uchar led[3];
 uint k,i;
 led[0]=tvdata%10;
 led[1]=tvdata/10%10;
 led[2]=tvdata/100%10;
 for(k=0;k<3;k++)
 {
    P2=tv[k];
    i=led[k];
    P1=a[i];
 delay(500);  
 }
}
main()
{

 while(1)
 {
 
  ad0809();
  smsm();
 }


}