1wire.h

通过车载终端采集GPS数据

#ifndef WIREHEADER
#define WIREHEADER

#define WIRE1_DQ P1_0

/****************************************
*1-wire reset function
*call this function before rom command and function command
*return value:1 :have 1-wire device;0: no 1-wire device
******************************************/
unsigned char wire1_reset();

/******************************************
*read a bit
*return value: the bit readed
*******************************************/
unsigned char wire1_readbit();

/*******************************************
*write a bit
*bitval:write value
*******************************************/
void wire1_writebit(unsigned char bitval);

/********************************************
*
*********************************************/
unsigned char wire1_readbyte();


/*******************************************
*
*******************************************/
void wire1_writebyte(unsigned char value);
#endif