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Altera_Forum's avatar
Altera_Forum
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14 years ago

NIOS II problem with internal connection

Hi everyone,

I have make a NIOS II based program for EP3C25 based board.

In the block design entry NIOS II Block is connected with many Input/ output port like LEDs and switches.

Also another counter block is added to the top level design entry along with NIOS II block.

When counter block acknowledges a high to low transition on trigger input, counter starts counting.

This trigger is initiated by NIOS II block.

So I have draw a direct connection between trigger pin of NIOS II block and Counter block.

My problem is counter block does not acknowledge trigger transition.

trigger is not any externally interfaced pin like LED, switches.

So does it possible to interface NIOS II block internally in top level design with counter block or any other provision I should make?

Regards.

1 Reply

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

    Yes you can do that. Are you sure the trigger signal is changed as you want? You can use signaltap to check it.