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What is the purpose of fir filter enable?

Category: Software
Product Number: AD9364

Hi

I am working on ADRV9364 and when I call the below function, the Rx data disappears () all I see is random noise.:
```ad9361_set_rx_fir_en_dis(ad9361_phy, ENABLE);```

Why?

  • Are you loading default FIR filter coefficients? What is the sampling rate and BW before FIR enable and after FIR enable? Can you readback the values?

     Also, you should use the ad9361_set_trx_fir_en_dis to enable the tx and rx FIR filters simultaneously. Hope you are using the latest drivers