need help with sdf annotaion in cadence ncverilog.

[hawk]

$sdf_annotate

Hi fox,
I need help regards to sdf annotation:
I can annotate the sdf max/min in seperate files (e.g. min alone & max alone - seperate sdf files for min/max).
However i did not succeeded to run on 1 sdf file with min/typ/max & choose from this file the relevant mode.
So....
My Q is:
how can i run sdf annotation with one sdf file which include min,typ,max
& choose the relevant mode in the gatelevel simulation????????
If some one can give an example for this, it will be great.
Regards,
Hawk.

 

[shawndaking]

sdf_annotate

In Timing Design There Is No Question Of mMin Or Typical, You Always Choose The Maximum Delay To Test The Worst Case Scenario.

 

[kinysh]

ncverilog +mindelay

the cadence help have detail for sdf_annotate
here is the example we use
$sdf_annotate("file.sdf", u_toannotate,,,"TOOL_CONTROL","1.0:1.0:1.0","FROM_MTM");
in the run script use typdelay, maxdelay, mindelay to control it.

by the way, min delay is also very important, it check hold time.