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Missing axi-ad9361-dds in my FPGA build for FMCOMMS2

Question asked by Arne_2 on Aug 3, 2015
Latest reply on Aug 17, 2015 by rgetz
Branched to a new discussion


I successfully ran all the TCL scripts and managed to get an FPGA build for the FMCOMMS2 reference design.

The Linux system is booting and everything seems to be working ok.

IIO scope comes up and almost all functions are working with one exception:

I cannot load filter coefficients remotely via Matlab Filter Wizard.


In diagnosing the issue, I compared a device tree that I generated from my FPGA design with the one that I downloaded from Github.

I noticed that my Device Tree is missing references to the axi-ad9361-dds register at address 79024000.


My understanding is that the DDS is actually generated in the FPGA fabric, is that correct?

If so, then there should be a DDS IP block in my design, but I don't see one.

Can you point me to the TCL scripts that generate the DDS IP?


As a matter of curiosity:

I was able to turn the DDS on and off via IIO-Scope. This only adds to my confusion...


Thanks and appreciated,