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Altera_Forum's avatar
Altera_Forum
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14 years ago

Timequest makes timings but not the real stratix IV hardware

I am having problems making actual timings on the real hardware. I'm actually trying to upgrade from a stratix III to a stratix IV. The design works on a stratix III. After I've set up a ba...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

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I actually observe the problem outside the chip. I have a DAC and I observe the problem on the waveform itself. Only then did I go and use the signal tap to try to isolate the problem. The distortions I get in the captured signals with signal tap are pretty much aligned with what I observe outside the chip.

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Hi,

which timing checks did you run with Timequest ?

Kind regards

GPK