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alperenpalp's avatar
alperenpalp
Icon for New Contributor rankNew Contributor
5 years ago
Solved

FIR II core IP outputs incorrect data.

Hello, It's my first time using intel's FIR filter IP and I'm having difficulties getting it working. I basically want to low-pass filter the data coming from the ADC (LTC2387) using FIR II IP. T...
  • CheepinC_altera's avatar
    CheepinC_altera
    5 years ago

    Hi,

    Would you mind to help opening a new thread on this. Thank you very much.

CheepinC_altera's avatar
CheepinC_altera
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,


Regarding your latest inquiry on the interpolation Filter, I believe you are setting the Interpolation Factory = 2. If yes, for your information, the Filter will insert one 0 in between the input sample to increase the output sample rate to 2x. There is no specific info in the user guide on the mapping. However, my understanding is that the output should have 0 in between the data bit instead of splitting into upper or lower. It is recommended for you to further check out through Modelsim simulation.


Please let me know if there is any concern. Thank you.


Best regards,

Chee Pin