"negative" required longest p2p time

--- Quote Start ---

Hello, everybody.

I've a small problem with Quartus II message report.

First of all, when I compile my project, time requirements are not met.

I read the report and I found a lot of errors related to "Setup Time".

I think there's a problem with required longest p2p time, because it has a negative value.

Obviously, "actual longest p2p time" can't be a negative number and so all goes wrong.

Could someone help me about this?

If you need more information, please ask and i'll give you. At the moment I don't know what is useful or not.:p

Thanks in advance,

Alessio.

--- Quote End ---

Hi Alessio,

which timing analyzer did you use ? Classic Timing Analyzer ?

I assume you have specified at least your required clock speed and the report shows you that your design is too slow ???

Kind regards

GPK