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RF430CL330H: Initial write of Capablility container/NDEF data does not seem to work

Vandermyer
Prodigy 60 points
Part Number: RF430CL330H
Other Parts Discussed in Thread: TRF7970A

Hi Community!

I'm using the RF430CL330H (on the DLP boosterpack board) and am having initialisation difficulties. I'm using code based on the sloc303 example code.

I initialise and write the NDEF_Application_Data data OK, using I2C, with no apparent problems. I then read the data output of the RF430CL330H and find:

1) The first 29 bytes (only) contain data, after that all data is 0.

2) The bytes:

    0x00, 0xf9, /* MLe (49 bytes); Maximum R-APDU data size */                              
    0x00, 0xf6, /* MLc (52 bytes); Maximum C-APDU data size */

have become 0x00 0x3b and 0x00 0x34.

Using the TI NFC Tool Ver 1.8 (in sloa227b) and a TRF7970A, when I read the RF430CL330H I only get 'Unknown RTD'. Similarly using an Android app there is no tag data (the 'Hello, world!' in the NDEF file). Also via the Andoid app write to the RF430CL330H fail - it simply reports 'write error'. Read/write of status etc registers seems OK, and I get interrupts from the RF430CL330H as expected.

Now, if I write via TI NFC Tool Ver 1.8 (in sloa227b) and a TRF7970A the 'hello world!' tag then everything behaves as expected:

1. The Andoid app reads the 'Hello world!' tag.

2. The Andoid app can now write new tags.

3. TI NFC Tool Ver 1.8 (in sloa227b) and a TRF7970A reads the 'Hello world!' tag.

If power is removed/re-applied, then once agan things do not work as expected unitl a write with the TRF7970A.

It's as if the RF430CL330H is somehow changing some data and rejecting some when at initialisation. but is then otherwise working correctly.

Anyone have any ideas what can be happening?

Thanks.

  • 0
    TI__Genius 15880 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 RF430CL330H 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.