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Altera_Forum's avatar
Altera_Forum
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8 years ago

Arria 10 GX Dev Board: USB-Blaster plugged into JTAG port can't access JTAG chain?

My Arria 10 GX dev. board works fine as long as I am accessing the JTAG chain using the USB port on the front end of the board (where the micro-USB cable plugs in). But, if I try to use a USB-Blaster plugged into the JTAG port (J17) I get the error "can't access JTAG chain." I've tried both orientations with the same results. I've checked the switches on SW4 and they are still in the default setting. Is there another switch I need to toggle?

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    8 years ago

    Does your computer see the USB Blaster? Have you installed the driver? What shows up in the Quartus Programmer?

  • APPU_appu's avatar
    APPU_appu
    Icon for Occasional Contributor rankOccasional Contributor
    5 years ago

    Hi @JohnT_Intel @Altera_Forum

    We are facing same issue. can u provide solution for this

    " I try to use a USB-Blaster plugged into the JTAG port (J17) I get the error "can't access JTAG chain." I've tried both orientations with the same results"