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Fdominguez's avatar
Fdominguez
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2 years ago

TRACE Interface through FPGA on Intel's Agilex 7 device not outputting clock

Hi. I am trying to validate a TRACE interface coming from Agilex’s HPS through the FPGA IO to a Mictor connector, but I am having issues getting the TRACECLK to show up. Currently I have a DSTREAM-P...
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aikeu's avatar
aikeu
Icon for Regular Contributor rankRegular Contributor
2 years ago

Hi Fdominguez,


May I know if you can see the trace data but you are not able to identify the data bit without the clock?


Thanks.

Regards,

Aik Eu


  • Fdominguez's avatar
    Fdominguez
    Icon for New Contributor rankNew Contributor
    2 years ago

    Hi Aik

    To answer all your questions:

    1. I have referenced to the TRM and haven't really found much information about enabling/disabling the TRACE clock. I know the FPGA generates a connection to the Trace Port Interface Unit (TPIU) and that I have tried with cs_atclk clocks ranging from 50 to 200MHz configured through Quartus

    2. We have hooked up an oscilloscope to the TRACE data lanes and can see that there is toggling when testing with the DSTREAM, but we can process the data as we are missing the clock signal which we can't see on the oscilloscope nor is detected by the DSTREAM