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Altera_Forum's avatar
Altera_Forum
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16 years ago

Waveform Simulation -> Init Burried

Hi!

I am using the waveform editor in Quartus II. Everything works fine, I can add IN and OUT nodes and I can see the simulation results. But now I need to set some BURRIED nodes to specific values. I can do this in the waveform editor but this doesn't affect the simulation results. It seems that the simulation always uses the init values for BURRIED nodes.

Is there a way to set the BURRIED nodes to specific values for the simulation?

Regards,

Andre

5 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor

    --- Quote Start ---

    Hi!

    I am using the waveform editor in Quartus II. Everything works fine, I can add IN and OUT nodes and I can see the simulation results. But now I need to set some BURRIED nodes to specific values. I can do this in the waveform editor but this doesn't affect the simulation results. It seems that the simulation always uses the init values for BURRIED nodes.

    Is there a way to set the BURRIED nodes to specific values for the simulation?

    Regards,

    Andre

    --- Quote End ---

    Hi Andre,

    as far as I know it is not possible to force internal node with the waveform editor.

    Kind regards

    GPK
  • Altera_Forum's avatar
    Altera_Forum
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    I read somewhere that the Altera devices can't init to values <> 0.

    If initial values <> 0 are used the quartus compiler initialize them to 0 and uses inverters on both sides of the register. And it seems that the simulation tool won't work as expected anymore with this registers.

    I am initializing and the first input clock now. This works fine for me.

    Thank you!
  • Altera_Forum's avatar
    Altera_Forum
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    --- Quote Start ---

    Is possible to set intial value?

    Bye

    --- Quote End ---

    Hi,

    as far as I know, it is not possible.

    Kind regards

    GPK