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fengA's avatar
fengA
Icon for New Contributor rankNew Contributor
3 years ago

CYCLONE 10 JTAG ERROR

Hello,

These days we are working on a project using cyclone 10 FPGA, 10CX105, 780 PIN.

But we can not attach JTAG chain with our USB Blaster, using Quartus pro.

It always shows "Can not attach JTAG chain".

We test JTAG function with empty FLASH ROM. The MSEL[2:0] Pin are set to 010/000.

When they are 000, the Status pin is set to high when FPGA powers up. When they are 010, the Status pin is set to high per 1.7ms, then set to low.

The attachment is the schematic file. Could you please help us check if there are any mistakes?

3 Replies

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

    Hello,


    Is this the first time you see JTAG error on this board, or is it working properly previously?

    JTAG dont need MSEL setting as JTAG will override MSEL setting.


    Items I need you to check:

    1. USB Blaster installation. Go to Device Manager > Check USB Blaster status
    2. Open Quartus Programmer, click Auto-detect, can you see any device detected?
    3. Using oscilloscope, please provide scopeshot for nSTATUS, CONF_DONE, nCONFIG when you start programming the FPGA.


    regards,

    Farabi


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

    Hello,


    Do you have update on the signal scopeshot?


    regards,

    Farabi


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

    Hello,


    We do not receive any response from you to the previous question/reply/answer that I have provided. This thread will be transitioned to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you.


    regards,

    Farabi