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Altera_Forum's avatar
Altera_Forum
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15 years ago

SOPC Builder error

Hi all,

I'm new on using SOPC Builder in Quartus II (10.1) on a DE2 board (cyclone2).

I was trying to run an old tutorial(the one that i find in the DE2 cd) ,in order to understand how to use SOPC,that implement a nios2/e with 2 PIO(input-8switch, output-8LED),jtag uart and a ram.. but i have a problem in generating file in SOPC builder; the error that stops the generation is

"PIO inputs are not hardwired in testbench. undefined values will be read from PIO inputs during simulation"

Someone can help me to go on with that?

2 Replies

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

    Hi:

    Dont worry, that's not an error, it's just a warning, you can continue working in the NIOS II IDE with the system created from SoPC Builder.

    However, if the system generations stops, it has to be other thing. If you want, paste here the messages shown in the SoPC to see them and maybe help u.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    Hi, thanks for you answer

    it wasn't a warning, was an error that stopped the system generation. But i solved it! I had to put a check in the checkbox at the bottom of the window of PIO input to hardwire it!