externh.h

利用51和1602液晶屏读写EEPROM的内容,可以查看,修改,也可以发给PC的超级终端作为文件保存下来.

#include <reg52.h>
#include<intrins.h>
#include "\work\def.h"
#define DEBUG 	0

#ifndef _I2CH
#define _I2CH

#define I2CPort P0
#define SDA 4
#define SCL 5
/*
24c01,24c02
*/
#define I2CSIZE  4
#if I2CSIZE>2
	#define I2CAddr_T unsigned int
#else	
	#define I2CAddr_T unsigned char
#endif


extern void Delay(unsigned char);


extern void I2CReadStr(I2CAddr_T Addr,unsigned char *ptr,unsigned char num);
extern void I2CWriteStr(I2CAddr_T Addr,unsigned char *ptr,unsigned char num);
#endif


#define Timer0Run(var)	{TR0 =var?1:0;}
#define IntEn()		{EA=1;}
#define IntDis()	{EA=0;}


sfr P4= 0xe8;

#define MAXLENGTH	11

#define COLUM	5

typedef struct{
	U8 Pos;
	U8 State;
	struct{
		U8 Disp 		:1;
		U8 Timer32ms 	:1;
		U8 Secure		:1;	
		U8 Modify		:1;	
		U8 First		:1;	
	}Flag;
}GOB;

extern GOB g;
typedef struct{
	U8 State;
	U8 hz,Code,Code0;
}KEY;
extern KEY Key;
typedef struct{
	U16 Addr;
//	U8 Buf[MAXLENGTH+1];
}SERECTST;
extern SERECTST Serect;
extern void PutCh(U8 ch);
extern int Printf(const char *fmt, ...);
extern void Delay(U8 ms);
extern void gSet(U8 ch);

extern void SetKeyOut(void);
extern void GetKey(void);
extern U8 KeyInput(void);
extern void SystemHandle(void);

extern U8 *string;

extern void LCDInit(void);
extern void DispStr(U8 x,U8 y);
extern void DispStr(U8 x,U8 y);
extern void Cls(void);


extern void Timer0Init(void);
extern void SystemInit(void);
extern void Rs232Init(void);
extern void Delay0(U8 );
extern void KeyScan(void);
extern unsigned char * BinToStr(unsigned long d,unsigned int radix,unsigned char *ptr);
extern unsigned int StrToBin(unsigned char *ptr,unsigned char ch);