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Altera_Forum's avatar
Altera_Forum
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18 years ago

invalid sof? please help me...

Hi,

i am close to desperation because i am completely blocked with my work.

I made a simple quartus design, a bdf including a 1s10 processor, compiled it and it reported no errors, programmed it on the board via programmer.

Now i go to niosIDE to program this system, but when i launch my program (which was correctly built) it says:

"There are no Nios II CPUs with debug modules available which match the values

specified. Please check that your PLD is correctly configured, downloading a

new SOF file if necessary."

What's wrong? I asked at altera mysupport, all they said me is to not click cancel on the openCorePlus message window when i am downloading the program to the board since i have a time_limited.sof as the result of the compilation, but i don't do that.

...

:( :( :(

4 Replies

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

    Is the chip resetting? If you have unused pins driving ground when they're not supposed to, you can trigger a over-current condition resetting your board. By default Quartus reserves all of your unused pins as "output driving ground"

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

    Assignment -> Settings, under the device page, click device and Pin Options. Select the appropriate option under the "Unused Pins" tab.

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

    Unused pins are displayed with all other pins in fitter report. You could prevent from the said problem by setting unused pin default to input with weak-pullup or hold in device settings / "unused pins".

    I would generally check, if the FPGA is configured with the intended design, e. g. by driving a test LED. I think, it could rather be an issue with Nios II configuration, but I can't help in this regard cause I'm not using Nios.