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ISO 15693-3 Write single block response reception with RI-R6C-001A

Gerald Stanton
Prodigy 10 points

Hello Everyone,

I've recently took over support for a RFID reader that utilizes the RI-R6C-001A (S6700 Multi Protocol Transceiver IC) to manage ISO/IEC 15693 smart tags. The reader generates a write single block command to the tag and the write is successful. However, the transceiver IC doesn't signal reception of the command response to the micro-controller. Now, the current firmware is disabling the Manchester Decoder in the transceiver command, but there is no comment or documentation on the reason the decoder was disabled. The firmware is handling the Manchester Decode as long as it can identify a good Start-Of-Frame (SOF), but I'm seeing cases where there is NO discernable SOF from the transceiver.  I've sought the errata for the IC,but so far I've found no errata on the TI web-site.

Thanks,

Gerald Stanton

  • 0
    TI__Guru* 90906 points

    Gerald -

    Please remember that you need to wait 10mSec or greater before you send the EOF to the tag to get it to respond, when using tags that comply to that section of ISO15693 (i.e. TI HF-I tags) or wait for it to respond (for tags that comply with that section of the standard, i.e. NXP)

    attached is some training material so you can repair the software you inherited as well as a logic screen capture for WSB, unaddressed (with 40mSec delay before EOF is sent to tag to get it to respond with 0x00, indicating good write operation)

    HF-I Transceiver.pdf

    LOWBAUD_WRITE_SINGLE_BLOCK_UNADDRESSED.pdf