Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

How to use NIOS processor for a custom design

Hi,

I am trying to use the NIOS processor in my design.

- For this, I first opened the SOPC programmer and created a test design with just the Nios processor and an on chip memory (i called it test_1) and generated it.

- After exiting from the SOPC programmer, I opened a New .bdf and tried adding symbol. I chose my test_1 symbol but this just has "clock" and "reset" as its inputs.

- My question now is, is there a way to get the actual NIOS processor with all its inputs and outputs. If this is not possible, how do I connect another logic block to the NIOS processor? As an example, I want to connect a module called fft.v to the NIOS processor and do all the fft operations on that.

Any help would be great.

thanks a lot

2 Replies

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

    Hello!

    What happened is correct. The Sopc BUILDER is showing all the inputs and outputs. If you want more, try enabling reset_request and debug_request but I don't think you really want them.

    You may take a look to the manuals, in particular to the Embedded Peripherals user guides.

    http://www.altera.com/literature/ug/ug_embedded_ip.pdf

    There you'll find a plenty of input and output peripherals.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    To interact with NIOS with your own logic you need to add PIO (Parallel I/O) blocks in SOPC Builder.

    Peripherals -> Microcontroller peripherals -> PIO (Parallel I/O)