• State Resolved
  • Locked Locked
  • Replies 7 replies
  • Subscribers 16 subscribers
  • Views 1679 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TRF7970A: How to READ/WRITE into RFID card?

Anil Dhanawade
Expert 2760 points
Part Number: TRF7970A
Other Parts Discussed in Thread: MSP430FR5969, DLP-7970ABP

I am able to READ/Write into the NFC TAG 213, and now i am trying to do the same thing(READ/WRITING) with RFID(mifare) card. I am using MSP430FR5969 with TRF7970A module(SPI protocol). 

  • 0
    TI__Guru*** 128255 points

    Hello Anil,

    The MIFARE Classic example for the TRF7970A is: http://www.ti.com/lit/pdf/sloa214

    This does not demonstrate tag writing, and does not run on the MSP430FR5969 though you can port the code. If you choose to make this port, I recommend getting a Logic State Analyzer so you can debug the timings and sequence of steps that are covered in great detail by the app note.

  • 0 in reply to Ralph Jacobi
    Expert 2760 points

    dear Ralph Jacobi,

    void NFC_TYPE2_READ_4_BLOCKS(void);  this predefined function is available on internet two read the data from NFC TAG, But i am not able to find any function to write/read from the RFID card. 

    and one more thing is that,  i am using MSP430FR5969 with the TRF7970A module for interfacing with mifare cards for reading, so is this correct method or wrong?> or any predefined code is available  to write and read. Please guide me. 

  • 0 in reply to Anil Dhanawade
    TI__Guru*** 128255 points
    Hello Anil,

    The function you mentioned is to read from a standard Type 2 tag - that is not what MIFARE Classic is. A Type 2 Read 4 Blocks won't work for MIFARE Classic.

    In principle there is nothing wrong with using the MSP430FR5969, we just don't have code examples for it. You will have to port the firmware yourself.

    Regarding the porting, I strongly recommend to run the MSP430 at the same clock speed as the web example - which is 8MHz.

    Also you will want to use the TRF7970AEVM for this - the DLP-7970ABP has an issue that prevents it from working with Mifare Classic in most cases that is still being investigated internally.
  • 0 in reply to Ralph Jacobi
    Expert 2760 points

    hello ralph,

    It is not mandatory to me to use only TRF7970A board, i can use the RFID_RC522(keystudio) board also for reading and writing, But for this one also i am not having any firmware("Embedded C" code). And i don't know about this board and is this board is OK for me or not?

    I want to read/write some data into RFID(mifare) card anyhow. Requirment is only that use MSP430FR5969 and another supplementory module which is usefull to read/write into that. So any solution on this so please give me.

    Thanks,
    Anil D.

  • 0 in reply to Anil Dhanawade
    TI__Guru*** 128255 points
    Hello Anil,

    The RC522 is not a TI device, we do not support that in any manner.

    I've provided what we have for the TRF7970A. It is up to you to port the example to the MSP430FR5969.
  • 0 in reply to Ralph Jacobi
    Expert 2760 points
    Hello Ralph J,

    OK i will try myself. and thanks for the support.
  • 0
    Expert 2760 points
    AM I able to read/write something data using TRF7970A module or not?