Ian and Shuping,

I would ask the same questions as Ian.

If you have the Schematics, I would use Update PCB, and if it appears to
be too large to load in in one chunk (if it bombs again), then I would
try only loading half of the Schematic pages at first, and then do
another update another update with all of the pages.

I am not sure about "appending" to a netlist when using the load netlist
method, but via the update pcb method I know that you can load part of
it and then load the whole thing without causing any problems, since
when it synchronizes it ignores what it has already loaded and that
which has not changed. I would say that it is worth a try, if all you
have is a large netlist, then make a copy and shorten the copy by about
30 or 40 percent, load the copy, then load the whole thing. Can't react
any worse than it is now (well ... this is Protel ... so you never

JaMi Smith

-----Original Message-----
From: Ian Wilson [mailto:[EMAIL PROTECTED]] 
Sent: Tuesday, April 16, 2002 3:57 PM
To: Protel EDA Forum
Subject: Re: [PEDA] FW: Access violation -- Is it a Protel bug?

On 03:23 PM 16/04/2002 -0700, Shuping Lew said:

>I tried to load a netlist file to PCB. It has over 1,100 components. I
>receiced a warning of access violation. It says: Access Violation at
>OF086CC6 module.... Exception Occurred in PCB: Netlist...
>I had the same problem months ago. There were about 900 components in
>netlist file. I finally used Update PCB instead of Load Netlist. It
>out fine. This time I do not have luck...
>Is it a Protel bug? Can Protel handle big boards over 1000 components?
>anybody have the same problem?  Any work around?
>Thank you for any help!


Why do you want to use the Netlist Load?  Why not simply keep using the 
Update PCB?  Is this an external netlist? Do you have the Schematics?

Does anyone know if splitting a netlist file into subsections works?  In

other words does loading different netlists, with non-overlapping net 
definitions, work or does Protel clear the old netlist first?  It is so 
long since I have done a netlist load that I can't remember.

It does sound like you have a found a bug.  I should be able to put
file at all into processes like netlist load and it should behave 
gracefully.  That is it should not crash and it should warn of invalid
or bad data.  All import processes, especially where the source data is 
external to the process, should be heavily protected and very
programmed.  It is not hard to do, tedious but not hard.

Ian Wilson

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