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Altera_Forum's avatar
Altera_Forum
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15 years ago

No Nios II target connection paths were located error in NIOS II EDS 10.0

Hi,

Using Windows Xp, I upgraded Quartus II (32bit) and Nios II EDS from version 9.1SP1 to 10.0 and now I have a problem in connecting to the NIOS II processor through the JTAG USB Blaster.

Running the configuration in NIOS II EDS, when I go "run as --> Nios II Hardware", in the "Target Connection" Tab I get the message:

" no nios ii target connection paths were located. check connections and that a nios ii .sof is downloaded."

This happens even with the Terasic Cyclone III FPGA starter kit board downloading their reference design "cycloneiii_3c25_start_niosii_standard.sof" and creating an "Hello World" application program.

Is there anybody who had the same problem with NIOS II EDS 10.0 and can help me?

Michele

5 Replies

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

    Hi,

    I just fixed my problem using the NIOS II 10.0 Command Shell. I report what happened as someone could find it useful:

    I tried to connect to the NIOS II processor using:

    nios2-terminal

    but the shell prompted that I had to specify the --cable option as it appeared I had more than one cable active. So I enumerated my JTAG cable using:

    jtagconfig --enum

    and I discovered that it was seeing a ByteBlaster cable that I am actually not using:

    bash-3.1$ jtagconfig --enum

    1) ByteBlaster [LPT1]

    Unable to lock chain (Bad port name)

    2) USB-Blaster [USB-0]

    020F30DD EP3C25/EP4CE22

    I deleted this cable by using the command:

    jtagconfig --remove 1

    and now I can see my NIOS II processor and run my firmware on NIOS II EDS again! :)

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

    Thank you very much Michele.

    We had the same problem and your fix solved it. :)

    Best regards,

    Slobodan.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    You are very welcome Slobodan. I am happy my post was useful.

    Thank you very much for the feedback !

    Kind regards,

    Michele