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jackhab's avatar
jackhab
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

ELF download failure

We are seeking for ideas with the following issue we have on Cyclone V.

We have a project in development where adding Altera PIO (and sometimes other MM-slaves) breaks the ability to load ELF into NIOS memory (both DDR and on-chip):

$ nios2-download -g --instance 0 --device 1 --cable USB-Blaster[USB-0] c13_commit_C3.elf

Using cable "USB-Blaster [USB-0]", device 1, instance 0x00

Pausing target processor: not responding.

Resetting and trying again: FAILED

Leaving target processor paused

The NIOS is visible on JTAG chain and the memory map is exactly the same as in the working version.

How can such JTAG download problem be debugged?

6 Replies

  • jhold7's avatar
    jhold7
    Icon for New Contributor rankNew Contributor
    6 years ago

    Error Running Nios II Project: Downloading ELF Process failed

    Description

    If the Nios II processor’s

    cpu.data_master

    port is not connected to all program memories (memories to which the .elf file is downloaded) the software project fails to run on Nios II hardware.

    Failure to connect

    cpu.data_master

    to all program memories is a design error that the Nios II Software Build Tools (SBT) does not detect.

    Workaround/Fix

    Connect

    cpu.data_master

    to all program memories.

    • AElia3's avatar
      AElia3
      Icon for New Contributor rankNew Contributor
      6 years ago

      Yes, we've solved the issue. It was caused by a bug in FPGA design not related to JTAG, the problem with NIOS was only a symptom of another issue.

      • NithinGowda's avatar
        NithinGowda
        Icon for New Contributor rankNew Contributor
        6 years ago

        Hi,

        I am having same issue. Can you brief on how you solved it with NIOS ?

        Thank you

  • Isaac_V_Intel's avatar
    Isaac_V_Intel
    Icon for Contributor rankContributor
    6 years ago

    I’m glad that your question has been addressed. 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.


    Isaac_V_intel