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FMCDAQ2 Custom Data

Question asked by R.ameli on Nov 18, 2015
Latest reply on Nov 20, 2015 by AdrianC

Hi all,


I have been trying to understand the FMCDAQ2 reference design (2015 r1) and I'm at a point where I would like to drive the DAC with custom data and I would like to process the ADC data. So here are my questions:


1) The axi_ad9144 and the axi_ad9680 have 64-bit inputs/outputs. However the DAC and ADC resolutions are 14 and 16 bits respectively. How are the 4 14/16-bit samples arranged in the 64-bit ports?


2) In order to make the axi_ad9144  core read its 64-bit inputs do I need to tweak the DAC Channel registers (REG_CHAN_CNTRL_7 to be exact)?



Thank you very much in advance,