trying to get TRF7970ATB + MSP-EXP430F5529 to read NFC tags

user4685465

Other Parts Discussed in Thread: TRF7970A

Hi,

I am using TRF7970ATB with MSP-EXP430F5529 to try to read some NFC tags such as NFC type 3 in NDEF format, ISO 14443A, Topaz, etc.

To control the board to do the Read Writer function, I am using Stolmann NFCPlayer as mentioned in TRF79x0ATB user's manual.

I am able to connect to the board using the NFCPlayer program fine, however I can't read any tags that I have. They can be read fine using my android phone.

Is there anyone who been able to do NFC communication using TRF7970A chip?

It would be helpful if anyone could provide some tips on which signals to look at and debug on the PCB.

over 8 years ago

0 Josh Wyatt over 8 years ago

TI__Guru* 91166 points

please check that you have installed the IRQ jumper on the F5529EXP board and check your COM port is setup for 115200, 8N1

see figure 22 on page 36, here www.ti.com/.../sloa192.pdf

0 Ralph Jacobi over 8 years ago

TI__Guru*** 131520 points

Hello,

Did you place the jumper between Pin 2.0 and Pin 4.0 on the MSP-EXP430F5529 board as described on Page 7 of this guide: http://www.ti.com/lit/ug/slou386b/slou386b.pdf

Additionally, can you describe which LED's are turned on and if any are blinking on the MSP-EXP430F5529 board once you have connected it to the NFCPlayer GUI?

As a side note, TI does not support Topaz at this time, so you won't be able to read those tags. Do you know what the ISO14443A tag is? Some of them, such as Mifare Classic, require a different setup to be read.

0 user4685465 over 8 years ago in reply to Josh Wyatt

Prodigy 20 points

placing a jumper solved the problem. thank you

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trying to get TRF7970ATB + MSP-EXP430F5529 to read NFC tags