Re: Designing PCells in Virtuoso

Paul,

Not really sure, but it might be something to do with the fact that pcell
evaluation does something clever to swallow errors and warnings produced by
the underlying pcell code. It redirects the output to a temporary file (if I
remember rightly) and it may be that it hasn't been able to open that
temporary file. Not sure where it puts it, but I'd hazard a guess at /tmp or 
/var/tmp - perhaps one of these is full up on your machine?

BTW, I'd definitely recommend writing SKILL pcells rather than using the rather
limited graphical pcell interface. You can make them much more
flexible and they're easier to maintain. They'd also generally be quicker
to evaluate...

Regards,

Andrew.

On Wed, 19 Nov 2003 16:00:39 +0100, "paul dot muller-at-epfl dot ch" <"paul dot
muller-at-epfl dot ch"> wrote:

>Hello,
>
>I'm using IC5.0 Virtuoso to build PCells for MOS transistors. I would 
>like to draw several fingers using the "Repeat in X" functionality. I am 
>able to use the same the same functionality to put several contacts to 
>the gate according to the gate length.
>
>When I try to add any other shape to the group to get several fingers 
>(e.g. the poly gate shape), I get the following error when compiling the 
>PCell:
>
>*Error* fprintf: argument #1 should be an I/O port (type template = 
>"ptg") - nil
>
>Can anybody tell me what's wrong? TIA
>
>Paul

--
Andrew Beckett
Senior Technical Leader
Custom IC Solutions
Cadence Design Systems Ltd