Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Cyclone V speed is much slower

Hello. I am new to Cyclone V. I took my design for Cyclone III and recompiled it with Quartus II web 13.1. From the timing analyzer, I can see that the maximum clock rate is only 84 Mhz while I was...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Yes, I think I've got the constraints right. The problem is that Quartus can't make the timing constraints on the Cyclone 5 while the identical project using a Cyclone 4 meets timing with no problems.

I've got a service request in with Altera now, so I'll post back if I can get to the bottom of this.

Thanks,

Steve