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anrfpga's avatar
anrfpga
Icon for New Contributor rankNew Contributor
3 years ago
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Understanding SW3 settings in Agilex Devkit

Hi All,

I am trying to understand the JTAG chain settings of the Agilex Devkit I have. The SW3 settings in Table 9 of its user guide is a little confusing to understand. The default setting (Mode 000 - Chained HPS with SDM nodes internally) makes sense to me as I have noticed the HPS to show up in the programmer after I program the FPGA with the .sof file but I do not understand the Modes in the last column. What are Mode 1 and Mode 3 and how do I configure them (Same with other modes in the next rows)?

Also, does "Chained HPS with SDM nodes externally" in Mode 001 mean the HPS will be available in the JTAG chain before programming the FPGA?

  • tehjingy_Altera's avatar
    tehjingy_Altera
    3 years ago

    Hi anrfpga


    Sorry for the multiple confusion through the thread.


    "Chained HPS with SDM nodes internally" refers to the HPS is chained to the SDM through the FPGA silicone and the HPS is connected to the JTAG chain through the SDM Jtag Pins.


    "Chained HPS with SDM nodes externally" refers to the HPS not connected to the SDM. The HPS will be connected externally through the OOBE daughter card through its own dedicated JTAG pins.


    For mode 001 to enable the HPS on the Jtag chain, it requires an additional OOBE daugther card for the HPS to be able to appear on the JTAG chain.


    Regards

    Jingyang, Teh


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  • tehjingy_Altera's avatar
    tehjingy_Altera
    Icon for Regular Contributor rankRegular Contributor
    3 years ago

    Hi anrfpga


    Since this thread been resolve, I shall set this thread to close pending. If you still need further assistance, you are welcome reopen this thread within 20days or open a new thread, some one will be right with you.


    If you happened to close this thread you might receive a survey. If you think you would rank your support experience less than 10 out of 10, please allow me to correct it before closing or if the problem can’t be corrected, please let me know the cause so that I may improve your future service experience.


    Regards

    Jingyang, Teh