BALTECH SDK wrapper functions reference

§ brp_Iso14a_TransparentCmd()

brp_errcode brp_Iso14a_TransparentCmd ( brp_Iso14a_TransparentCmd_t  params)

This command sends a data stream to a card and returns the communication status and the received card data stream to the host.

Parameters
[in]paramsStruct with the following fields:
  • protocol used to execute the command
  • EnMifBwProt (in) Enables Mifare backwards compatibility protocol: * Data bytes sent to the card are counted in Bytes, and bits 0..3 of Mode bit mask are taken into account. * Data bytes received from the card are counted in Bytes, 4 bit error codes (Mifare, Mifare+) are counted as one byte. * First data byte in answer (byte 2) specifies data type: 0x00 for normal data, 0x01 for 4 bit error codes.
  • EnBitmode (in) Enable bit mode used for anti-collision sequence (send single bits instead of whole bytes). When this flag is set, the EnParity , ParityMode , EnCRCTX , and EnCRCRX flags will be automatically disabled by the reader and therefore will have no effect. SendDataLen and RcvDataLen are interpreted in bits instead of bytes.
  • EnCRCRX (in) Enable CRC check over received data.
  • EnCRCTX (in) Enable CRC check over transmitted data.
  • ParityMode (in) Toggle even/odd parity mode. ISO 14443 (Type A) uses odd parity. Possible values are 0 (even parity) and 1 (odd parity).
  • EnParity (in) Parity generation is enabled when this flag is set.
  • SendDataLen (in) Number of bytes to send.
  • Timeout (in) Timeout in ms between sending the last bit to the card and receiving the first bit from the card.
  • DSI (in) Divisor Send/Receive Integer (DSI/DRI) This parameter is mapped to the Divisor Send/Receive (DS/DI) value, which determines bit rate for sending data from PICC to PCD. The possible DS/DR values (mapped to the DSI/DRI index) are listed below.
  • DRI (in) Divisor Send/Receive Integer (DSI/DRI) This parameter is mapped to the Divisor Send/Receive (DS/DI) value, which determines bit rate for sending data from PICC to PCD. The possible DS/DR values (mapped to the DSI/DRI index) are listed below.
  • SendData (in) Data to send Bits will always be transferred LSB first.
  • SendData_len (in) Length of SendData (in bytes).
  • RcvData (out) Returned data
  • RcvData_len (out) Length of RcvData (in bytes).
  • mempool (in) is used to store response data. Maybe NULL to use an internal mempool, in this case the data is only available until another command uses the internal mempool