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Altera_Forum's avatar
Altera_Forum
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14 years ago

constaint timing and ouput

Hi all, I want to test contraints timing to understand TimeQuest and to verify the consequenses of using the tool . For that I have created a simple two ouputs PWM. The ouputs are similar and ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Thanks for your answer.

I'm reading your document (TimeQuest_User). My understanding of timing constraints was clearly wrong.

set_ouput/input_delay do not set a timing value between ouputs (in my example) but indicate a windows in the course of which the data is allowed to change. The windows 'values are configured by input/oupout delay.

Great document Ryan.

Best regards

Pierre