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DAQ2 unexpected result in receive path

Question asked by Bouchaib on Aug 30, 2016
Latest reply on Nov 9, 2016 by Bouchaib
Branched from an earlier discussion

Hi Istvan, 

I recuperate data:  adc_data_0 (64bits) and add_data_1(64 bits) from a signal injected in Input of the ADC(DAQ2).

I try to plot it and observe it but i see difference between the oscilloscope and the signal

with the adc_data_0 and add_data_1.(saturation)

I consider data like your answer :

o in case of DAQ2, using the default ADC and JESD204B configuration, on the core's output you should see:

     - adc_data_0 = {I3, I2, I1, I0}                 (converter 0)

     - adc_data_1 = {Q3, Q2, Q1, Q0}           (converter 1)

 I plotted the samples I0,I1,I2,I3 and Q0,Q1,Q2,Q3 (saturation) separately.

 

 

thanks, 

 

Bouchaib

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