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Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Downloading ELF Process failed when executing from flash

Hi,

I am using Eclipse to program my Nios on a Max10 FPGA. When I run the Nios code from the RAM everything works fine. Now I changed everything so that the code would execute directly from the flash (on-chip). I set all settings as described here:

https://www.altera.com/en_us/pdfs/literature/an/an730.pdf

I used Option 1a

Now if I try to run/debug the code directly out of Eclipse I get "Downloading ELF Process failed".

Console says:

--- Quote Start ---

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

Processor is already paused

Reading System ID at address 0x00481028: verified

Initializing CPU cache (if present)

OK

Downloading 00200000 ( 0%)

Downloading 00210000 (70%)

Downloaded 92KB in 0.1s

Verifying 00200000 ( 0%)

Verify failed between address 0x200000 and 0x20FFFF

Leaving target processor paused

--- Quote End ---

Attached is my setup.

I programmed the Nios code with a *.pof to the device and this also works fine.

Is it even possible to run/debug code directly from Eclipse?

Best Regards

2 Replies

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

    Usually that would be due to missing timing constraints, but I see you are connected to on-chip rather than off-chip flash.

    I it seems you assigned the memory region in the BSP editor, but did you change the physical wiring in Qsys to allow Nios II instruction/data master to access the on-chip flash? (I can't see the Qsys diagram...resolution too small...)
  • SDevaux's avatar
    SDevaux
    Icon for New Contributor rankNew Contributor
    7 years ago

    Hello,

    I have the same problem, everything go right when I program via Quartus Programmer in pof.

    I can run it from SBT, but if I change something in my C Code, I have to rebuild pof, program UFM and then I can launch it from SBT Run "NiosII hardware".

    Seems that SBT can have access to UFM in write mode.

    did you have an ansewer from Intel?

    Thanks