Forum Discussion

tfan2020's avatar
tfan2020
Icon for New Contributor rankNew Contributor
3 years ago

STA Timing result much worse with Quartus v20 and later than v17.1

Hi, I have a design implemented in Arria10 device, I'm using Synplify_premier v2019 + Quartus v17.1 Standard edition. Now I want to upgrade the Quartus version to v20 later, e.g. v22.1. The iss...
Nurina's avatar
Nurina
Icon for Regular Contributor rankRegular Contributor
3 years ago

Hello,

First of all, migrating your project to a later version of Quartus does not guarantee better results as place & route and timing optimization is done differently. However, a large slack like that is quite alarming, it usually means that there is SDC constraint problem.

Can you share you .qar file for both v17.1 and v22.1? To generate this, go to Project>Archive Project.

Regards,

Nurina