Forum Discussion

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

Generate Simulation data from RAM or ROM table and acquire with Signal Tap Analyzer?

I've designed a filter in matlab and generated HDL code and a test bench for this filter and successfully simulated this design in modelsim. i'm trying to verify the results by Programming the design on the Cyclone II FPGA and getting it's output. i'm not sure how to do this i've been told in a different post to acquire simulation data from a RAM or ROM (How? http://www.alteraforum.com/images/smilies/confused.gif ) and acquire with the signal tap analyzer? how do i provide Data input for my filter? and how do i get it's output from the FPGA?

I need as much as help as i can on this process. Any help will be greatly appreciated.

One final thought can't i simply use the test bench generated from matlab and program that on the board to verify it's results.

4 Replies

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

    Test benches are, usually, not synthesizable...

    I assume your filter's input is a N bit vector which provides 1 sample per clock.

    If you want to run the test with L samples, you need a NxL ROM with the samples (you can use a megafunction for that).

    Then you need to connect the ROM's output to your filter's input and add a counter to cycle through the ROM's addresses.b

    You can then use SignalTap to see the filter's output.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    --- Quote Start ---

    Test benches are, usually, not synthesizable...

    I assume your filter's input is a N bit vector which provides 1 sample per clock.

    If you want to run the test with L samples, you need a NxL ROM with the samples (you can use a megafunction for that).

    Then you need to connect the ROM's output to your filter's input and add a counter to cycle through the ROM's addresses.b

    You can then use SignalTap to see the filter's output.

    --- Quote End ---

    For the ROM do i use the NCO megacore? and how do i add the counter to cycle the rom's addresses? i know SignalTaps trigger when a trigger condition is met. for a filter what would be considered a trigger? sorry for the seemingly basic questions, but i'm all new to this and can't seem to find these information anywhere. thank you once again.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    --- Quote Start ---

    Please do not multipost your question

    --- Quote End ---

    Sorry not a lot of people post on this Forum so i figured if i posted in multiple sections i would get a faster reply.