group.h

总结前人经验,改进后的程序,虽有警告但是仍可应用.因为8个警告中有7个是因为函数定义后未调用.

#include "reg52.h"					 	    //头文件
#include "absacc.h"

#define key_shift           11
#define key_P               12
#define key_enter           13
#define key_down            14
#define key_up              15
#define key_A               16
#define key_D               17
#define key_C               18
#define key_E               19
#define Num_lock            20
#define		uchar	unsigned char 
#define		uint	unsigned int

extern void delay(uint i);
extern void delay5ms(void);
extern void delay400ms(void);
extern void display_char(uchar x,uchar y,uchar ch);
extern void display_string(uchar x,uchar y,uchar code *string);
extern void inttilcs(void);
extern void lcdclear(void);
extern void lcd_init(void);
extern void DA_main(void);                    //DA单独主函数
extern void DA_IN(uint ch);           //DA数据输入
extern void AD_main(void);                    //AD单独主函数
extern void AD_IN(uchar ch);          //AD数据输入
extern uint AD_GET(uchar ch);      //AD数据转化返回值

extern uchar key_i;
extern uchar count;
extern uchar g_add;


sbit AD_EOC=P3^2;
sbit AD_CLK=P1^0;
sbit AD_ADD=P1^1;
sbit AD_OUT=P1^2;
sbit AD_CS=P1^3;
sbit DA_ADD=P1^4;
sbit DA_CLK=P1^5;
sbit DA_CS=P1^6;