[PCB_FORUM] Fanout not working

From: Ed Caldwell <Ed.Caldwell@xxxxxxxxxx>
To: <icu-pcb-forum@xxxxxxxxxxxxx>
Date: Thu, 17 May 2007 08:54:27 -0400

I am using Allegro Studio 15.7 and just had to load the May 8th ISR in 
order for my design to compile the netlist.

Before loading the ISR, I was getting an error in the netlist compiler 
when (or immediately after) it reads the library. 

After installing the new ISR - no errors - compiler works fine - except I 
can't get fanout to work.  It has been some months since I used Allegro, 
but I recall the fanout function working before (same tool except for ISR 
and same design except was first version). 

I am plowing through the setups and following the Supportnet self-help 
instructions with no success.  I explored the autorouter and found a 
message that my 12 layer design exceeds the licensed layer count.  I have 
never used the autorouter and it seems strange that this would be the 
culprit.  I tried de-selecting all but the 2 outer layers in the 
autorouter but I get the same exceeds licensed layer count message.  I 
expect this is some ignorance on my part. 

Although I can manually route and drop vias in the BGA's, I would like the 
tool to auto-fanout for the sake of saving time. 

Any help is appreciated!   BTW - I submitted an SR to Cadence Support 
also.
Ed

Ed Caldwell
PCB Designer
USA 678-473-8707
mailto:ed.caldwell@xxxxxxxxxx
EDS http://www.eds-pcb.com

[PCB_FORUM] Fanout not working

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