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Altera_Forum's avatar
Altera_Forum
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15 years ago

Worst slack values are Negative for Removal

HI , I am trying to run the NIOSII example of led from the nios2 hardware manual.I could generate the nios 2 system.And also integrate it with the Quartus.But when I compile the system in quart...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

With a .sdc file open, go to the Quartus II --> edit --> insert template. If you look under timequest you should find the JTAG constraints. Those are the ones you are missing and these are the types of failures you can't fix by changing the clock frequency since recovery/removal paths have to do with the reset path and not the data path. For board delays I just eyeball it and overestimate....... although I probably just use 1us for the JTAG logic and call it a day most of the time :)