原创 ad7705程序2

ad7705.c//主程序

#include<reg52.h>
#include"lcd1602.h"
#include<absacc.h>
#include<intrins.h>
#include<math.h>
#define uchar unsigned char
#define uint unsigned int
 

sbit AD7705_DATA=P3^0;       // AD7705 input & output data
sbit AD7705_CLK=P3^1;        // AD7705 CLK

sbit AD7705_DRDY=P3^2;       // AD7705 data ready
sbit AD7705_CS  =P1^5;       // AD7705 CS            

uint Counter="0",Counter1=0;
long int T_VoltageTotal=0;
uint T_Voltage=0, T_VoltageDel=0,T_VoltageQP=0,T_VoltageMax=0;//现在值、中间处理值、去皮值，与最大值
unsigned char MSB_Data,LSB_Data;

uchar a[5]={0,0,0,0,0};
uchar b[5]={1,0,0,0,5};
//分别对应
uchar code row1[]={"  NOW:***** g   "};
uchar code row2[]={"  MAX:***** g   "};
uchar row1adr[16]={0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F};//LCD地址
uchar row2adr[16]={0x80+0x40,0x81+0x40,0x82+0x40,0x83+0x40,0x84+0x40,0x85+0x40,0x86+0x40,0x87+0x40,0x88+0x40,0x89+0x40,0x8A+0x40,0x8B+0x40,0x8C+0x40,0x8D+0x40,0x8E+0x40,0x8F+0x40};//LCD地址
uchar i; //定义变量

void lcdscan();//更新显示的数据
void lcdscan1();//初始化二行数据
void Delayms(unsigned char ms);
void AD7705_Start(); // 通道的初始化
void AD7705_Read (); //对转换数据进行处理
void AD7705_Write_Reg(unsigned char Data_byte); //对芯片写数据
unsigned char AD7705_Read_Reg(); //读取AD转换的数据

main()
{
lcdrw=0;//lcd写数据
 lcdon();//初始化LCD
 lcdscan1(); 
 IT1=0;
 EX1=1;      
 EA = 1;
 P0 = 0xff;
 P1 = 0xff;
 P2 = 0xff;
 P3 = 0xff;
 Counter  = 0;
 AD7705_Start();
 delay(200);

 for(i=0;i<10;i++)  //启动去皮
 {
 AD7705_Read();
 T_VoltageTotal+=T_VoltageDel;
 }
 T_VoltageQP=(uint)(T_VoltageTotal/10);
 //****************
 T_VoltageTotal=0;
 while(1)
 {
 Counter++;
 Counter1++;
 AD7705_Read();
 T_VoltageTotal+=T_VoltageDel;

 if(Counter==8)
 {
 T_Voltage=(uint)(T_VoltageTotal/8);
 T_Voltage-=T_VoltageQP;
 if(T_Voltage>63000)
 T_Voltage=0;
 if(T_Voltage>T_VoltageMax)
 T_VoltageMax= T_Voltage;
 if(Counter1==160)
 {
 a[0] =(uchar)(T_Voltage/10000);
 a[1] =(uchar)((T_Voltage-a[0]*10000)/1000);
 a[2] =(uchar)((T_Voltage-a[0]*10000-a[1]*1000)/100);
 a[3] =(uchar)((T_Voltage-a[0]*10000-a[1]*1000-a[2]*100)/10);
 a[4] =(uchar)(T_Voltage-a[0]*10000-a[1]*1000-a[2]*100-a[3]*10);

 b[0]=(uchar)(T_VoltageMax/10000);
 b[1]=(uchar)((T_VoltageMax-b[0]*10000)/1000);
 b[2]=(uchar)((T_VoltageMax-b[0]*10000-b[1]*1000)/100);
 b[3]=(uchar)((T_VoltageMax-b[0]*10000-b[1]*1000-b[2]*100)/10);
 b[4]=(uchar)(T_VoltageMax-b[0]*10000-b[1]*1000-b[2]*100-b[3]*10);
 lcdscan();
 Counter1=0;
 }
 T_VoltageTotal=0;
 Counter=0;
 }
 }

}
  
//******初始化LCD二行******//
void lcdscan1()
{
lcdrw=0;//lcd写数据
//第一行
 for(i=0;i<16;i++)
 {
  lcdwrite(row1adr);
  lcdshuju(row1);
  delay(10);
 }
 //第二行
 for(i=0;i<16;i++)
 {
  lcdwrite(row2adr);
  lcdshuju(row2);
  delay(10);
 }
}
//***更新显示的数据***//
void lcdscan()
{ 
lcdrw=0;//lcd写数据 
//第一行
 for(i=6;i<11;i++)
 {
  lcdwrite(row1adr);
  lcdshuju(a[i-6]+0x30);
  delay(1);
 }
 //第二行
 for(i=6;i<11;i++)
 {
  lcdwrite(row2adr);
  lcdshuju(b[i-6]+0x30);
  delay(1);
 }
 }