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DDC2256A: ADC output not changing

Part Number: DDC2256A

Hello,

I am working with this device and am able to see data when the ADC is commanded to output the pre-defined patterns (all zeros, all ones, ramp, etc).

When I try to collect actual live data, I am not seeing the data change. It looks fairly random, but the data is always the same as if the ADC is not actually putting out anything.

What are the minimum register settings in order to see "live" data from the ADCs?  Thanks.