Custom fs in mts overlay

Support
1

Hi,

I am making a design based on the example RFSoC-MTS
I want to change the Sampling Rate of the data converters, specifically that of the DACs.
From what I have read here xrfclk, I have to generate some new tics files, change them and call the set_ref_clks function. So far so good, but I have tried to do this and it doesn’t seem to work.
I have checked the usp_rf_data_converter parameters using an ol.ip_dict and they have not changed, they still have their original value. I have also changed the overlay via Vivado to change the ip core fs.
Do I have to do anything else to change the fs ? am I missing something ?
Thanks in advance.

Adrián

2

What do you mean by “new tics files”? I use custom bitstreams by uploading mts.runs/impl_1/mts_wrapper.bit and mts.gen/sources_1/bd/mts/hw_handoff/mts.hwh to the RFSoC directory where my python code is being run. Is that what you’re doing?

3

The tics files are used to change the clock reference and pll for the lmk and the lmx. Of course i am changing the .bit and the .hwh, that s different.

4

Hm, can you show any example code with a comment for what you expect to see and what you see instead?