Forum Discussion

CBehr's avatar
CBehr
Icon for New Contributor rankNew Contributor
7 years ago

Problem using set_min_delay between Quartus and Timequest. Results between the two tools are inconsistent.

I'm using a test design to examine why my set_max/min_delay constraints are not working. It appears that Quartus uses the set_min_delay constraint incorrectly during compile. Setup: The design has ...
CBehr's avatar
CBehr
Icon for New Contributor rankNew Contributor
7 years ago

Addendum:

I played with the set_min_delay value on the full project and these were the results. It looks a lot like the min_delay drives the tool to generate a data path ~twice that value (but not quite).

min_delay data path clk path

9 18.7-21.7 2.3

8 16.6-19.4 2.3

7 14.1-16.8 2.3

6 11.4-14.6 2.3

5 9.4-12.4 2.3

4 6.6-9.3 2.3

Thanks in advance.