eeprom.h

用单片机实现LCD显示字符和图形

//extern char   Key_read ();

#define uchar unsigned char
#define uint unsigned int
#define ulong unsigned long


sbit I2C_SDA= P1^6;//**********LINK TO IIC BUS
sbit I2C_SCK= P1^7;//**********LINK TO IIC BUS
//sbit I2C_SDA= P2^3;//**********LINK TO IIC BUS
//sbit I2C_SCK= P2^4;//**********LINK TO IIC BUS
extern unsigned char total_t[4];
extern void I_start(void);
extern void I_stop(void);
extern bit I_clock(void);
//extern void  I2C_Nack(void);
extern bit I_send(uchar I_data);
extern uchar I_receive(void);
extern uchar readI2c ( uchar address );
extern void writeI2c ();
extern void delay_n_ms( uint n_milisecond) ;