PN512 EXPLORE BOARD cannot read MIFARE CARD

[Nuno]

Dear all.


I am write a C library using SPI communication for interface the Board NFC EXPLORE PN512 with a micocrontroller from 8 bit, 16 bit or 32 bit.

I do this because lot of pleople don't has Raspeberry or prefere use this Board with another MCU, like in my case.

After one week working in this projects I can manager the NFC EXPLORE register, for example, write and read the FIFO BUFFER, clear the configuration, transmitte data to RF anntena.

But I cannot send data to MIFARE card to read the UID or other data that is store in the card EEPROM.

Below is my code:

// THIS LINES OF CODE CONFIGURE THE DEVICE TO ENABLE RF ANTENA AND

EXPLORE_NFC_PN512_ControlReg(0x05);
EXPLORE_NFC_PN512_TxAutoReg();
EXPLORE_NFC_PN512_RxThresholdReg();
EXPLORE_NFC_PN512_RFCfgReg();
EXPLORE_NFC_PN512_GsNOnReg();
EXPLORE_NFC_PN512_TxControlReg();

// CLEAR THE FIFO BUFFER BEFORE WRITE THE COMMAND DO BE SEND TO RF

EXPLORE_NFC_PN512_Clear_Fifo_Buffer();
EXPLORE_NFC_PN512_WRITE_MB_INTO_FIFO_BUFFER(0x26); // value write 0x26h command do quest card

// NOW SEND THE FIFO CONTENT TO ANNTENA AND WAIT FOR MIFARE CARD RESPONSE
// IN THIS PARTICULAR CASE I WAITING FOR 04h 00h

EXPLORE_NFC_PN512_Start_Send();
EXPLORE_NFC_PN512_Transmit();
EXPLORE_NFC_PN512_Transceive();

_delay_cycles (50000);

nBytes=EXPLORE_NFC_PN512_GetFifoLevel(); // Get FiFo level

_delay_cycles (50000);


Please help...

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[Andreas]

Hi Nuno,
to support you on this topic we need to know which µC board you are using. When you are using a NXP µC this side might help you:
http://www.lpcware.com/content/project/lpcopen-platform-nxp-lpc-microcontrollers
Kind regards
Andreas

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[Riccardo Olivier]

Dear Nuno,

I'm trying to use the PN512 with a AtMega16. For this I'm searching a library (I only want to read the UId).
Is it possible to use yours?
From where can I get it?

Kind Regards
Riccardo

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