Zmod ADC Sampling Clock period

[vasilistheodo]

My goal is to be able to give the values of clocks and sampling frequency as inputs from the clocking wizard (so that later on i can set these values through vitis). My problem here is that zmodscopeController has a gui parameter Sampling clock period (expressed in ps) and an input pin "ADC_SamplingClk". Do these two parameters need to have the same value? I think that the parameter that decides the sampling frequency of ADC_Scope is the one i give as input. Thanks in advance for any help 

[artvvb]

Quote

Do these two parameters need to have the same value?

Yes. The IP uses the sample clock period parameter internally to compute parameters for an MMCM (the primitive generating the differential clock), if they do not match, DcoClkOut may fall out of spec. The "sample clock" referred to in the IP GUI is ADC_SamplingClock, so for example, a 40 MHz ADC_SamplingClock requires a period of 25000 ps be specified.

Thanks,

Arthur