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#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
uchar code Disp_dot[]={0xbf,0x86,0xdb,0xcf,0xe6,0xed,0xfd,0x87,0xff,0xef};			//带小数点的共阴极显示代码
uchar code Dispcode[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x40,0x00};//共阴极显示代码
uchar Display_Buffer[]={0,0,0,0};
bit Flag = 0;
sbit CLK = P3^0;
sbit ST = P3^1;
sbit EOC = P3^2;
sbit OE = P3^3;
void DelayMS(uint t)
{
  uchar i;
  while(t--)
    for(i=110;i>0;i--);
}
uchar ADRead()
{
  uchar val = 0;
  ST=0;ST=1;ST=0;		//启动A/D转换
  while(!EOC);		    //等待转换完成
  OE=1;
  val=P1;				//读转换值
  OE=0;
  return(val);