Forum Discussion

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

arithmetic mode for LE from vhdl

I have searched many threads for the solution and the answers were incomplete. So i try to do some investigation. this code in vhdl definitely put your counter in arithmetic mode for LE. if you ha...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

I was refering to using a constant rather than using the enable signal into the carry chain.

The constant requires 0 routing, hence zero timing impact.

The enable signal needs to be routed in somehow, and will add some routing delay.