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Target protocol register not getting hit for ISO14443B in card Emulation TRF7970A

Hariprasad C R
Intellectual 485 points
Other Parts Discussed in Thread: MSP430F5529

Hi

I want to put TRF7970ATB module in just Card Emulation mode only for emulating some tag data.

After reading out this link I found a program to use TRF7970ATB board in card emulation for IS014443B mode.

So I downloaded the code from here and compiled and flashed it in my MSP430F5529 Experimenter Board .

Then I started testing and debuging the code with my Google Nexus 4 android phone.What I saw from debugging was that the IRQ was coming from the MSP430F5529 Experimenter Board for field detection but after that I never received a value 0xC5 in the Target Protocol register indicating a ISO tag B operation ,even though I touched the phone with TRF7970ATB board for some time.

What is the problem that stops me getting 0xC5 in target protocol register?

I'm really stuck at this point please help me out of this issue!!!

Thanks

Hari

  • 0
    TI__Mastermind 44665 points

    Hari,

    We can look into this, but have you had a chance to look at my suggestion about the RF430CL in your other recent thread?  If this part would not limit your application needs, it would be much easier to implement since the stack is all handled in the RF430CL. 

    The firmware you are looking at is probably quite old.  Can you please provide some logic analyzer shots of the SPI communication between the TRF and the MSP?