/********************************************************************
文件名稱：ad7705.c
功能：數字萬用表
說明：電壓五檔、電流五檔、電阻七檔

********************************************************************/
#include
#include
#define?uint?unsigned?int
#define?uchar?unsigned?char
sbit?ADC_CLK=P1^7?;			??
sbit?ADC_DIN=P3^0?;				
sbit?ADC_DOUT=P3^0?;
sbit?ADC_DRDY=P3^1;

sbit?lcden=P3^2;				
sbit?lcdrs=P3^3;

sbit?U=P2^7;?
sbit?I=P3^5;
sbit?R=P1^5;
/*電壓檔*/
sbit?a=P1^4;?
sbit?b=P1^3;?
sbit?c=P1^2;
sbit?d=P1^1;?
sbit?e=P1^0;
/*電流檔*/
sbit?f=P2^0;
sbit?g=P2^1;
sbit?h=P2^2;
sbit?i=P2^3;
sbit?j=P2^4;
/*電阻檔*/
sbit?k=P1^0;
sbit?l=P1^1;
sbit?m=P1^2;
sbit?n=P1^3;
sbit?o=P1^4;
sbit?p=P2^1;
sbit?q=P2^0;
/*短路口*/
sbit?DUANLU=P2^5;

/************************************