原创 AD转换

/******实现模数转换********/
#include<reg52.h>
#include<intrins.h>
#define uint unsigned int
#define uchar unsigned char
uchar bai,shi,ge,temp;
sbit w1=P2^0;
sbit w2=P2^1;
sbit w3=P2^2;
sbit cs="P2"^3;
sbit rd="P2"^4;
sbit wr="P2"^5;
void delay(uint z);
void display(uchar b,uchar s,uchar g);
uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,
                               https://static.assets-stash.eet-china.com/album/old-resources/2009/5/13/6986c7c6-a30f-425c-83fd-4082c72bda0a.rar" target=_blank>0x6f};
void main()
{ 
 cs=0;    //打开片选
 while(1)
 {
  wr=1;
  delay(10);
  wr=0;
  delay(10);
  wr=1;
  display(bai,shi,ge);
  delay(100);
  rd=1;
  delay(10);
  rd=0;
  delay(10);
  temp=P1;
      rd=1;
  bai=temp/100;
  shi=temp%100/10;
  ge=temp%10;
  _nop_(); 
  }
}
void display(uchar b,uchar s,uchar g)   //显示函数
{
 P0=0;
 w1=0;
 P0=table;
 delay(10);
 w1=1;