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Altera_Forum's avatar
Altera_Forum
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19 years ago

Problem with QII and Nios Development

Hello everyone,

I'm just trying to download in a Nios Development Board (with Stratix EP1S10 device) just a really simple design, using the seven General Purpose LED diodes and also the four "General Purpose" switches of that board. I just intend to switch on one led while pressing one general-purpose switch.

In appearance, the download from this code to the board is done without errors. I've assigned properly the Stratix Device pins related to the switches and leds, and the QuartusII Programmer while the download ends without errors... but in the board still remains the "safe configuration" (no change happens)...

Are there any compulsory pins to be assigned?

Thank you very much http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/wink.gif

3 Replies

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

    --- Quote Start ---

    originally posted by trech@Jun 6 2006, 10:07 AM

    hello everyone,

    i&#39;m just trying to download in a nios development board (with stratix ep1s10 device) just a really simple design, using the seven general purpose led diodes and also the four "general purpose" switches of that board. i just intend to switch on one led while pressing one general-purpose switch.

    in appearance, the download from this code to the board is done without errors. i&#39;ve assigned properly the stratix device pins related to the switches and leds, and the quartusii programmer while the download ends without errors... but in the board still remains the "safe configuration" (no change happens)...

    are there any compulsory pins to be assigned?

    thank you very much http://forum.niosforum.com/work2/style_emoticons/<#emo_dir#>/wink.gif

    <div align='right'><{post_snapback}> (index.php?act=findpost&pid=15971)

    --- quote end ---

    --- Quote End ---

    Awhile ago, I had problems like this too.. my solution was to stop working on them. I managed to get the IO working easily in a full Nios system... I didn&#39;t really have any time to investigate it further.

    Good luck!
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    19 years ago

    Hi trech,

    I had a similar problem creating a new project from scratch on my cycloneII board. The problem were dual purpose pins of the fpga. One of them, I don&#39;t remeber which one, was configured to work as a programming pin after the downloading of the image was finished. This caused the fpga to reset directly after the programming finished.

    You can check these settings in QuartusII. Assignments->Device->Device and Pin Options->Dual Purpose Pins.

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

    Also check your unused I/O settings (set it to input tri-state). Search the forum for tristate or tri-state and you&#39;ll find more information.