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TRF7970A: TRF7970A no successful receive due to Framing and Parity Error when configured as tag reader

James A.
Prodigy 90 points
Part Number: TRF7970A

A TRF7970A is configured as a reader for reading ISP 14443 3B type tags.

After the RF checks are done and the polling command is sent (REQB), there is no successful RX.

The IRQ status shows Byte Framing Error and Parity Error.

We are using the TRF7970A Boosterpack and using the TI NFC Tool (ver1.8) to emulate a type B tag.

  • 0
    Prodigy 90 points

    Side note:  To elliminate physical wireless comms, we have connected the tag emulator directly to the TRF7970A  antenna port with wires.

  • 0
    TI__Genius 13045 points

    Hello Customer, thank you for your question and interest in our products.

    The forum support of this product has been reduced to first reference our existing documentation and collateral. TI does not have plans to stop production or place the device into a “Not Recommended for New Design” status, we genuinely feel most questions on these devices can be answered by reviewing existing collateral and previous questions asked. Please feel free to continue to use this device as you see fit for your applications. For support, please take a look to the “Similar Topics” section at the lower right of the thread page. In addition, please consult the existing collateral in the “Technical Documentation” section of the TRF7970A product web page along with the Frequently Asked Question document. Alternatively, you can use the search engine of your choice to look for related E2E threads. With each of these resources we believe it will help with your question.