main.c

c8051学习机实验程序

#include <IO.h>
#include <stdio.h>

#define uchar unsigned char

extern void config (void);

void delay(unsigned int n);
uchar adc0832(bit channel);

void main()
{
	uchar i,j,temp;



    delay(1000);
    config();
delay(1000);

/********************************************************************/
P1=0xff;
      while(1)
        {
           temp=adc0832(0);
             temp=adc0832(1);
        }

/******************************** end ************************************/

}


uchar adc0832(bit channel)
{
uchar i,rebuf;
   CLK=0;
   CS=0;
   DIN=1;    //START
   delay(5);
   CLK=1;
   delay(5);
   CLK=0;
   DIN=1; //SGL/DIF=1
   delay(5);
   CLK=1;
   delay(5);
   CLK=0;
   DIN=channel;//ODD/SIGN=1;
   delay(5);
   CLK=1;
   delay(5);
   CLK=0;
   delay(5);
   CLK=1;
   	for(i=0;i<8;i++)
	{
		rebuf<<=1;
		CLK=1;
		delay(10);
		CLK=0;
		delay(10);
                DOUT=1;
                rebuf|=DOUT;
	}
    CS=1;
    return(rebuf);
}


void delay(unsigned int n)
{
	unsigned int i,j;
	i = 0;
	j = 0;
	while(j<n)
	{
		i = 0;
		while(i<20) i++;
		j++;
	}
}