Re: errors exporting and importing mocmossub (newbie)

[Steven Rubin]

> GNU Electric sounds really intriguing.  To get to know the system I
> tried writing a tech file.  I ran into some problems that were hard
> for me to solve.  When I switched from 8.02 to 8.03 things were much
> better I decided to start over again and so I started a clean session,
> and with the mocmossub library did a
>
>   Menu Activated: Edit | Technology Specific | Convert Technology 
> to Library for Editing...
>   Menu Activated: File | Save Library
>
> I then quit from that session, started a new session and opened the
> library I wrote..
>
>   Menu Activated: File | Open Library...
>
> When I opened the library there were 4 errors.
>
>   Network: cell 'mocmossub:node-N-Transistor{}' has connections on 
> port 'generic:address@hidden'
>   Network: cell 'mocmossub:node-N-Transistor{}' has connections on 
> port 'generic:address@hidden'
>   Network: cell 'mocmossub:node-P-Transistor{}' has connections on 
> port 'generic:address@hidden'
>   Network: cell 'mocmossub:node-P-Transistor{}' has connections on 
> port 'generic:address@hidden'

These errors can safely be ignored.  They stem from the fact that a 
technology library has unusual connectivity in it, and the network 
analyzer is fooled by it.  Specifically, in a node's description, the 
ports are connected to each other to indicate connectivity in the 
actual node (i.e. the two polysilicon ports are connected to each other).

> This is reminiscent of some of the errors that I was getting when I
> tried creating my own tech file.  However this time I can use this
> technology.
>
> Before I proceed to hack up mocmossubX to become my own technology I'd
> like to be able to understand the errors and the proper solution.  I
> blindly went into the jelib file and commented out the port[68] nodes
> and arc.  I can successfully read the library but when I convert it to
> a technology I get
>
>   Could not find port p-trans-poly-right in all examples of cell 
> 'node-P-Transistor{}'
>   Cannot match different examples in cell 'node-P-Transistor{}'
>
> I'm curious what the proper solution is.  Hopefully I'll learn a thing
> or two.

By removing the error (and removing the connectivity between the 
ports and possibly other things) you have actually deleted useful and 
important information from the technology library.  I will look into 
the error messages, but for now, just ignore them.

   -Steven Rubin