-extern byte_t oddparity (const byte_t bt);
-extern uint32_t GetParity(const uint8_t * pbtCmd, int iLen);
-extern void AppendCrc14443a(uint8_t* data, int len);
-
-extern void ReaderTransmitShort(const uint8_t* bt);
-extern void ReaderTransmit(uint8_t* frame, int len);
-extern void ReaderTransmitPar(uint8_t* frame, int len, uint32_t par);
-extern int ReaderReceive(uint8_t* receivedAnswer);
-extern int ReaderReceivePar(uint8_t* receivedAnswer, uint32_t * parptr);
+extern void GetParity(const uint8_t *pbtCmd, uint16_t len, uint8_t *par);
+extern void AppendCrc14443a(uint8_t *data, int len);