www.intusoft.com has some helpful technical articles about SPICE.
(You have to register to download them)
I wish Protel would offer more help for simulation ...
One article describes in general convergence problems with some circuits and
their causes (something like 'converg.pdf').
The 'timestep t
On 10:10 AM 16/04/2002 +0200, Rolf Molitor said:
>www.intusoft.com has some helpful technical articles about SPICE.
>(You have to register to download them)
>I wish Protel would offer more help for simulation ...
>One article describes in general convergence problems with some circuits and
>their
For my opinion its not nearly sufficient for such a complex subject.
To my recollection the simulator was adopted from MicroCode, which is a full
member of the altium family. The guys there surely have very very very much
more knowhow concerning simulation that could (and should) be shared with
th
Thanks to all.
Actually, my problem was a more classic error. When creating the library
part for the schematic, I forgot to flip a pin to the correct orientation
relative to the part outline - so it was backwards. I also did not have a
label name on it and never noticed the inconsistent positio
Warning
Unable to process data:
multipart/mixed;boundary="=_NextPart_000_0005_01C1E55A.A530A310"
Shuping, I've had similar problems in Protel'98 which were
traced to duplicate Identifiers giving duplicate pins; apparently
causing a database that was too large for either Protel or my
machine to handle in available memory. Something similar
happened reloading a netlist to an existing layout ha
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 address
>OF086CC6 module Exception Occurred in PCB: Netlist...
>
>I had the same problem months ago. Th
Brian, I am using Protel 99SE sp6. The operation systems is Window 2000. I
have over 500 mb of Ram. Tried to load a netlist to a new PCB document.
There is no warning for the netlist report. I am not sure what I should do
to solve the problem. Do you have any suggestion?
-Original Message
I used Update PCB also. Sometime there was nothing shown on the PCB, or only
netlist lines shown but no components.
I got the schematic files. I tried this way and it worked: Loads each
sheet's netlist individually to PCB; clears netlist each time; Then Update
PCB after all the components loaded.
Why not send it to Protel for evaluation??
> -Original Message-
> From: Shuping Lew [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, April 16, 2002 4:15 PM
> To: 'Protel EDA Forum'
> Subject: Re: [PEDA] FW: Access violation -- Is it a Protel bug?
>
>
> Brian, I am using Protel 99SE sp6. The o
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
Ian Wilson's questions are good ones. Did you enter the schematic and
generate the Netlist? If you entered the schematic, and if it is an option,
I would begin by resetting all Identifiers to ?. That is, do a global change
of all R's to R?, all C's to C?, etc, for all components. Then use Tools/
Shuping,
At some point around 900 components Protel performance will slow down,
Many designs I am seeing are around 1300 - 1440 components. Protel cam
handle them easily with lots of RAM (512 meg) , to address IANs question
why load the netlist? Because the synchronizer will also choke to and
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