stream.h

在ARM7和UC/OSII的平台上实现了GPS自动报站的功能,涉及GPS模块LEA_4S的驱动,位置速寻算法,语音芯片ISD4004的录放音驱动,LED页面管理等等.从启动代码到操作系统的移植以及到业

/****************************************************************
**                                                              *
**  FILE         :  Stream.H                                    *
**  COPYRIGHT    :  (c) 2001 .Xiamen Yaxon NetWork CO.LTD       *
**                                                              *
**                                                              *
**  By : CCH 2002.1.15                                          *
****************************************************************/
#ifndef DEF_STREAM
#define DEF_STREAM

#define STREAMMEM	INT8U

typedef struct {
    STREAMMEM	*StartPtr;
    STREAMMEM   *CurPtr;
    INT16U       Len;
    INT16U       MaxLen;
} STREAM;


BOOLEAN    InitStrm(STREAM *Sp, STREAMMEM *Bp, INT16U MaxLen);
INT16U     GetStrmLen(STREAM *Sp);
STREAMMEM *GetStrmPtr(STREAM *Sp);
STREAMMEM *GetStrmStartPtr(STREAM *Sp);
void       MovStrmPtr(STREAM *Sp, INT16U Len);
void       WriteBYTE_Strm(STREAM *Sp, INT8U writebyte);
void       WriteHWORD_Strm(STREAM *Sp, INT16U writeword);
void       WriteLONG_Strm(STREAM *sp, INT32U writelong);
void       WriteLF_Strm(STREAM *Sp);
void       WriteCR_Strm(STREAM *Sp);
void       WriteSTR_Strm(STREAM *Sp, char *Ptr);
void       WriteDATA_Strm(STREAM *Sp, INT8U *Ptr, INT16U Len);
INT8U      ReadBYTE_Strm(STREAM *Sp);
INT16U     ReadHWORD_Strm(STREAM *Sp);
void       ReadDATA_Strm(STREAM *Sp, INT8U *Ptr, INT16U Len);

#endif