main.c

51编写的AD7714的测试程序

#include <atmel/at89x51.h>
sbit AD_CLK=P1^0;
sbit AD_CS=P1^1;
sbit AD_DIN=P1^2;
//sbit AD_DOUT=P1^3;
//sbit AD_DRDY=P1^4;

void WriteToReg_ADC(unsigned char beteword)
{
unsigned char Token ,i ;
Token = 0x80 ;
AD_CLK =0 ; AD_CS =0;  // 开始
for (i=0;i<8;i++ )
  {
   AD_CLK = 0;
   if (beteword & Token) AD_DIN = 1 ;      // 输入数据位
   else AD_DIN = 0 ;
   AD_CLK= 1 ;
   Token = Token >> 1 ;
   }
   AD_CLK= 0 ; AD_DIN = 1 ; AD_CS = 1 ;     // 结束
 }

//unsigned long ADC_Rdata24bit (void)
//{
//unsigned long temp ;
//unsigned char i ;
　//while (AD_DRDY == 1);//　{ Delay 1ms(1) ; } //等待数据准备好
  //while (AD_DRDY == 1);
 // while (AD_DRDY == 1);
/*