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tsoundi's avatar
tsoundi
Icon for New Contributor rankNew Contributor
2 years ago
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Unrecognized output fir II

Hi, I made a fir filter using the FIR II in the ip catalog of Quartus Prime Lite Edition. When implementing my fir filter I get an Unrecognized signal at the output of the filter. I made a testbe...
Simulation
  • Kshitij_Intel's avatar
    Kshitij_Intel
    2 years ago

    Hi,


    When you are using the FIR II IP with Lite edition there will be time limited SOF will generate.


    Are you giving any reset to the FIR IP? If Yes, try changing the reset polarity on HW(eg. active low to active high).


    Thank you

    Kshitij Goel


Kshitij_Intel's avatar
Kshitij_Intel
Icon for Frequent Contributor rankFrequent Contributor
2 years ago

Hi,


When you are using the FIR II IP with Lite edition there will be time limited SOF will generate.


Are you giving any reset to the FIR IP? If Yes, try changing the reset polarity on HW(eg. active low to active high).


Thank you

Kshitij Goel


tsoundi's avatar
tsoundi
Icon for New Contributor rankNew Contributor
2 years ago

Hi,

Thank you very much I overlooked this detail. I did it correctly in my testbench but did not invert the reset in the project.

I changed this and I get an output now !

greetings,

Daoud