adc.c

AD转换C程序,希望对大家有用

#include<reg51.h>
#include<stdio.h>
#include<stdlib.h> 
#include<intrins.h>
#include<absacc.h>

#define uchar unsigned char
#define uint unsigned int
#define nop _nop_();

#define adc0 XBYTE[0x0fff]

sbit pc=P2^0;
sbit pd=P2^1;
sbit p23=P2^3;

code uchar table[11]={0xfc,0x60,0xda,0xF2,0x66,
                      0xB6,0xBE,0xE0,0xFE,0xf6,0x10};
uchar jg;
//----------------------------------------------
void sendData(char c)
{
	char i;
	bit temp;
	c=~c;
	for(i=0;i<8;i++)
    {
	  if (c&0xfe==0xfe) temp=0;
	  else temp=1;
	  pc=0;
	  pd=temp;
	  pc=1;

	  c>>=1;
	}
}
//---------------------------------
void initADC(void)
{
  IT0=1;
  EA=1;
  EX0=1;
}
//---------------------------------
void display(void)
{
  uchar b,s,g;

  b=jg/100;
  s=jg/10-b*10;
  g=jg%10;

  sendData(table[0]);
  sendData(table[b]);
  sendData(table[s]);
  sendData(table[g]);	 
}
//--------------------------------
void int0_ser(void) interrupt 0
{
  jg=adc0;
  display();
}
//400ms-------------------
void delay400ms(void)
  {
	unsigned char TempCycA = 5;
	unsigned int TempCycB;
	while(TempCycA--)
	{
	  TempCycB=7269;
	  while(TempCycB--);
	};
  }
//==================================
void main(void)
{
  initADC();
  adc0=0;
  while(1)
  {
    delay400ms();
	adc0=0;
  }
}