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Altera_Forum
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14 years ago

Gate level Simulation passes but design fails on target borad

Hello, I am implementing a filter (2nd order) in Quartus Stratix II device running at 500KHz. I simulated the design using ModelSim. My Target hardware consists of stratix II device. Input...
Altera_Forum's avatar
Altera_Forum
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14 years ago

I retried the figures for 100Hz filter. It looks my version of matlab gets this filter wrong. I still get the same results as before but I suspect it is the tool as I get inconsistent results between fvtool and freqz.

I would rather assume your friend's figures are correct since they look not that far from 200Hz filter...