Forum Replies Created

  • Re: Reply To: Configuring PN512 correctly

    7. September 2016 at 19:19     in reply to: Configuring PN512 correctly

    Justin Nguyen
    Yes, STM spi driver reject null rxbuffer, but reader library pass null when flush fifo. Hence, the request is not sent and disloop flow is broken.
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    Re: Reply To: Configuring PN512 correctly

    11. August 2016 at 20:35     in reply to: Configuring PN512 correctly

    Justin Nguyen
    Dear,

    I got same problem here with NXP PN5120 which is currently working perfectly with LPC1769.
    when running with NfcrdlibEx4_MIFAREClassic and NfcrdlibEx1_BasicDiscoveryLoop.

    However, when integrate the PN5120 with Nucleo STM32 F030R8. I could not read the tags, the DiscLoop_run method always return NoTechDetected (refer the Poll_Mode in Discovery Loop).
    I have no clue what is going on and how to solve the problem.
    Anyone has any idea?

    The code has been ported from NfcrdlibEx4_MIFAREClassic example with follow steps:

    • Disable macro RTOS & PH_PlATFORM

    • Compile the ReaderLib with SW4STM32 IDE.

    • Base on STM sample project & SW4STM32 IDE, link to the ReaderLib.

    • Port NfcrdlibEx4_MIFAREClassic.c, all the flow for Rc523 are retained, remove others HAL e.g 663, 5180

    • Implement my own STM32 phbalReg, especially the Exchange method.



    The SW run perfectly, the sequense commands are same with NXP sample.

    • PN512 version return successful (0x82) when sending 0xEE (address 0x37h) 0

    • TxControlReg return 0x80 which are same as Datasheet.

    • However, tag can't be detected



    Other question
    Do we really need SetInterupt() function in NfcrdlibEx4_MIFAREClassic.c, I remmove the method and tags still can be detected using the LPC1769?

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