Can not set rx rf sampling fequency

Question

I want to set rx sampling frequncy using ad9361_set_rx_samplling_freq() function. However in some specific frequencies it does not set correct frequency. For example in 4.096 MHz or 8.192 MHz it is sets frequency without problem. But when i set the frequency to 2.048 MHz and get it with ad9361_get_rx_samplling_freq it returns value like 3 MHz. What could cause this problem?

srimoyi · Accepted Answer

You cannot change the sampling frequency randomly, as all entire path rates(Clocks at which the Half band filters and the ADC )runs depends on this rate.Also, the BW set depends on this rate. So, it is recommended to use the filter wizard tool generate a profile with the required sampling rate and BW and the load the same profile and initialize the chip.Download it from the below link: 
 https://wiki.analog.com/resources/eval/user-guides/ad-fmcomms2-ebz/software/filters)

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Can not set rx rf sampling fequency