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Quartus fir ii IP core output data abnormality

hzsk_csc
Beginner
‎03-14-2024 08:15 PM
502 Views

I am developing a filtering project using an FPGA model of 10m08scu169c8g，and I am using a fir ii IP core to implement the filtering function.

This is the filter parameters and spectrogram that I set in Matlab：

hzsk_csc_0-1710471942972.png

hzsk_csc_1-1710471980568.png

This is my setting in the fir ii IP core：

hzsk_csc_2-1710472015173.pnghzsk_csc_3-1710472027890.pnghzsk_csc_4-1710472054928.pnghzsk_csc_5-1710472064826.png

This is my simulation result in modelsim：

hzsk_csc_6-1710472311311.png

But the output of my fir filter is like this：

hzsk_csc_7-1710472381876.png

I have checked the settings and parameter selection many times, and I am not sure where the problem lies. I request assistance from the community

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