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Altera_Forum's avatar
Altera_Forum
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16 years ago

Physical constraints

Hello, I'm trying to figure out what does "set_global_assignment -name USE_GENERATED_PHYSICAL_CONSTRAINTS OFF -section_id eda_blast_fpga" in the Quartus II Settings File (.qsf) mean and how to ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Actually, I'm trying to find out the meanings of all the sentences into some files generated by Quartus II (.qpf, .qsf, ...). The purpose is to extract some informations, which could be interesting for a user, and to display those using a software I've created. It will be easier for a user, it won't be needed to edit each files ... it's gonna be like an interface.

So I have a Cyclone III development board. I've created a Quartus II project, everything works fine. My question is : do I need to display this information ("Physical constraints ..."), is it gonna be useful for the user, and what is the meaning of this information.

My guess is for example, if I add a clock constraint, this sentence will be different. I want to try, but I don't know how to do that, and I don't know if my guess is right.

Thanks,

Julien