aduc824.txt

基于aduc824单片机的ad转换和二线式数码管的C语言程序

				  			  ///////////////////////程序///////////////////
#include "aduc824.h"
#include<intrins.h>

#define time_1 6000
unsigned char code dispcode[]={0x88,0xbb,0xc1,0x91,0xb2,0x94,0x84,0xb9,0x80,0x90};
unsigned char dispbuf[4]={0,0,0,0};
unsigned char data l_data[5]  ;
float wd; 
sbit CLKPIN = P1^3;                //用户自定义CLK对应引脚
sbit  DIPIN = P1^1;                //用户自定义DI对应引脚
void lcdwbit(bit n)		   //串行移位脉冲输入
{  DIPIN = n;
   CLKPIN = 1;
   CLKPIN = 0;
   CLKPIN = 1;
}
void lcdwd(unsigned char data1)    //串行数据输入
{  unsigned char i;
   for(i=0;i<8;i++)
   {  if((data1&0x01)==0x01)
         lcdwbit(1);
      else 
         lcdwbit(0);
      data1>>=1;
   }
}

void delay(unsigned int t)         // 延时子程序
{  unsigned int i,j;
   for(i=0;i<t;i++)
      for(j=0;j<10;j++)
         ;
}
void l_set()
{
   l_data[1]=0xff;
   l_data[2]=dispcode[dispbuf[1]];
   l_data[3]=dispcode[dispbuf[2]];
   l_data[4]=dispcode[dispbuf[3]];
   l_data[5]=dispcode[dispbuf[4]];
}
void lcdwd1()
{  unsigned char i;
   for(i=0;i<5;i++) 
      lcdwd(l_data[i+1]);
}

void transram()
{
   l_set();
   lcdwd1();                       //显示
   delay(time_1);
}
void ADCI () 			  //24位AD转换模式
{
	int l,m,h,i;
	l=ADC0L;
	m=ADC0M;
	h=ADC0H;
	i=65536*h+256*m+l;
	wd=i/214748364.8;
}
void main(void)
{	float i	;
	int j;
	ADC0CON=0x00;		  //20mv范围
	ADCMODE=0x63;		  //主ADC使能，连续转换
	IE=0xC0;		  //开启ADC中断，打开总中断
    while ( !( ADCSTAT&0x01 ))  //完成数据写入寄存器ADS.7置1
	{
	  ADCI ();		  //A/D转换数据处理，对应热电势
	  i=wd;
	  if(i>=5.770&&i<6.790) j=99.199*i+527.2;    
	  else	if(i>=6.790&&i<7.850)   j=94.121*i+561.68;
		else	if(i>=7.850&&i<8.960)   j=90.237*i+592.1;
			else	if(i>=8.960&&i<10.1) j=87.445*i+617.06;
				else	if(i>=10.1&&i<11.270)	j=85.903*i+632.57;
					else	if(i>=11.270&&i<12.440)	j=85.483*i+637.2;
						else	if(i>=12.440&&i<13.600)	j=86.507*i+628.58;
	 dispbuf[1]=j/1000;			//千位
	 dispbuf[2]=(j%1000)/100;		//百位
	 dispbuf[3]=((j%1000)%100)/10;		//十位
	 dispbuf[4]=((j%1000)%100)%10;		//个位
	 transram();
       }	
}