comm.h

使用xmodem进行串口通讯的程序

BOOL ComWriteChar(int nPortID, int nChar);
int ComReadChar(int nPortID);
int ComReadChars(int nPortID, char *pchBuffer, int cbBuffer);
int CharsWaitingToBeRead(int nPortID);
BOOL SetComPortParameters(int nPortID, int nSpeed, char chParity, int nDataBits,
						  int nStopBits, BOOL bXOnXOff, BOOL bHardware);
BOOL CloseComPort(int nPortID);
int OpenComPort(int nPort);