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NFC PN7462 Harmonic Issue

Question asked by Tein Su on Oct 1, 2018
Latest reply on Oct 8, 2018 by Kan_Li

We want to reducy harmonic,

and we change the GSN to 0x02 in CLIF_ANA_TX_AMPLITUDE_REG


We use NfcrdlibEx1_BasicDiscoveryLoop exmaple.

  1. Change all about CLIF_ANA_TX_AMPLITUDE_REG inside user_EE.bin

    from 0xFFFFxxxx  to 0x02FFxxxx (there are 27 values)



    from 0xFFFFxxxx  to 0x02FFxxxx  before call phacDiscLoop_Run()


The CLIF_ANA_TX_AMPLITUDE_REG become 0xFFFFxxxx automatically, I can not found when the SDK access CLIF_ANA_TX_AMPLITUDE_REG from source code.

Does the CLIF_ANA_TX_AMPLITUDE_REG  access inside the library?

How to reduce the Tx power?

Or any suggestion about hardware?