TRF7970A: Write NDEF message using TRF7970A to RF430CL331H (running SLOC330)

Saba Eas

Part Number: TRF7970A
Other Parts Discussed in Thread: RF430CL331H, , DLP-7970ABP

Hi,

I am trying to write an NDEF message from TRF7970A to RF430CL331H which is running the SLOC330. So far, I am successful writing and reading from RF430 using a mobile phone, but unable to do the same using the TRF.

I was using the below code sequence to get this working. I would like to have your support to do this. Thanks

   if(NDEF_selectFile(0xE103))NDEF_updateBinaryText();

over 2 years ago

0 Andreas Mueller over 2 years ago

TI__Genius 17630 points

Hello Saba,

could you please let me know in which context this code line comes?

If you are using the DLP-7970ABP + MSP-EXP430F5529 then you can use the example firmware code and GUI in sloa227. It also supports writing NDEF messages to the RF430CL331H.

Best regards,

Andreas.

0 Saba Eas over 2 years ago in reply to Andreas Mueller

Intellectual 300 points

Hi Andreas,

Thanks for the response. I think the SLOC330 is able to setup the EF430 in an NDF writable state as I am able to write NDEFs using my mobile phone. I think what I am missing here is the writer functionality from the TRF side. So far I have developed my TRF side to be able to read the tags, but I am not sure which example functions I should be testing to implement the writer functionality from the TRF side.

My source code for TRF7970 is based on this code . Hope I have provided enough context for you to understand where I am stuck at the moment.

Regards,

Saba

0 Andreas Mueller over 2 years ago

TI__Genius 17630 points

Hello Saba,

in chapter 1.3 of the Frequently asked questions for TRF7970A and TRF7964A devices (Rev. B) it is stated that sloc297 is supporting non-NDEF data only.

The alternative would be DLP-7970ABP BoosterPack plug-in module and MSP-EXP430F5529 LaunchPad development kit with firmware sloa227. This combination is for sure supporting NDEF.

Best regards,

Andreas.

+1 Saba Eas over 2 years ago in reply to Andreas Mueller

Intellectual 300 points

Hi Andreas,

Thanks. I just realised this.

But the good news is I am able to write using the command I've posted above. It was just the antenna that was causing the problem. Hope this helps for someone who is trying to write NDEFs using the same source code.

Regards,

Saba

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TRF7970A: Write NDEF message using TRF7970A to RF430CL331H (running SLOC330)