i2c.h

此程序为本人在公司开发的继电器功能测试仪

#ifndef I2C
  #define I2C
  typedef unsigned char byte;
  extern bit WRITEBYTE(byte CON_ADDR,byte UNIT_ADDR_H,byte UNIT_ADDR_L,byte DATABYTE);
  extern bit READBYTE(byte CON_ADDR,byte UNIT_ADDR_H,byte UNIT_ADDR_L,byte *DATABYTE);
  extern bit WRITEDATAARRAY(byte N,byte CON_ADDR,byte UNIT_ADDR_H,byte UNIT_ADDR_L,byte *DATABYTE);
  extern bit READDATAARRAY(byte N,byte CON_ADDR,byte UNIT_ADDR_H,byte UNIT_ADDR_L,byte *DATABYTE);
  void START_BIT(void);
  void STOP_BIT(void);
  bit SEND_BYTE(unsigned char BYTEVALUE);
  unsigned char RECEIVE_BYTE(void);
  sbit SDA=0X91; //P1.0
  sbit SCL=0X90; //P1.2
  #define DELAY1US() _nop_();_nop_();_nop_();_nop_();_nop_()
  #define DELAY2US() _nop_();_nop_();_nop_();_nop_();_nop_();_nop_()
  #define DELAY5US() _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_()
#endif