18b20.h

通过车载终端采集GPS数据

#ifndef T18B20HEADER
#define T18B20HEADER

/**************ROM FUNCTION COMMANDS***/
#define T18B20_READROM 0x33
#define T18B20_MATCHROM 0x55
#define T18B20_SKIPROM 0xcc
#define T18B20_SEARCHROM 0xf0
#define T18B20_ALARMSEARCH 0xec

/********MEMORY FUCNTION COMMANDS**/
#define T18B20_WRITESCRATCHPAD 0x4e
#define T18B20_READSCRATCHPAD 0xbe
#define T18B20_COPYSCRATCHPAD 0x48
#define T18B20_CONVERTT 0x44
#define T18B20_RECALLE2 0xb8
#endif