Design migration tool

Hi Andrew,

With your help, I could modify "l" successfully, but "w" is not correct, no matter whether I add ("w" "lFinger Width") in conv.config. It seems that it only transferred the original w value into "User Property" instead of "CDF Parameter": As you can see the attached snapshot, Finger Width in "User Property" is right (600n), but in "CDF Parameter" it's always "2u". Is there any way to change "Finger Width" of "CDF Parameter"? Thanks!

You are not giving the correct destination parameter name - you’ve used the prompt that is shown on the form rather than the parameter name, which is why it is creating user defined properties (for Length as well). You need to do Tools->CDF->Edit and then look at what each property name is and use those instead. 

Andrew

Hi Andrew, sorry to trouble you again: With your help I could do successful migration, but when I copy the whole environment to my another workstation, it even couldn't execute the command (everything is same except different workstation). Please help to look at the snapshot and help me. Thanks so much!

This is indicating that it couldn’t open the file conv.config. That’s either because you didn’t have the permissions but looking at the fact that a full path worked it’s more likely to be because the SKILL path doesn’t include the working dir. Check what:

getSkillPath()

returns. Does it include “.”? If not, you can either give the path as “./conv.config” or use:

setSkillPath(cons(“.” getSkillPath()))

before running the abConv... function

Regards,

Andrew

Hi Andrew, You are brilliant! Please help me for the last issue: Most transistor's length is "180n" as the string, but I encountered one transistor is "400n" which showed as the number "4e-07" in SKILL (As you can see from the snapshot). However when I manually change from 400n to 400.0n (or any other number) in Object Properties, the SKILL will recognize it as the string instead of the number. It's so strange! Thanks a lot!

Inside the fixing function (where you have the printf) you can put:

if(numberp(val) then

  valAsNum=val

else

  valAsNum=cdfParseFloatString...

)

I’m writing this on a mobile device so the cdfParseFloatString in the else branch is the line that’s already in the code. 

Regards,

Andrew

You are so helpful, Andrew! Now everything works perfectly！Thank you so much!

Hi Andrew,

We want to try modifying this script for Layout migration. Is it possible for you to share the config file for this code? We want to check how the config file is written.

Regards,

Nikhil Malwatkar

I can't give the config for your case because I don't know what exactly you need to migrate. There's an example config in the comments at the top of the code, and there are numerous examples given in the other replies to this post. So there really ought to be enough examples to get you started.

Andrew

Thank you for your reply. We are trying to migrate a complete project from 1 technology to another technology. Both technologies are internal to my company. Thus the layouts to be migrated will have multiple level of hierarchies with standard logic cells/components etc. In such a case will the config file above (or others shared already) be helpful?