packet_unit.pas

ah 209型通用读卡器驱动程序源码

unit packet_unit;

interface

const
  PACKET_HEAD_LEN      =   5;		//报头长度(字节)

type
  pPacketHead = ^TPacketHead;
  TPacketHead = packed record
    HeadWord : Word;                //= $AA55
    PackLen  : Byte;
    HeadCrc  : Word;
  end;   



implementation

end.