How we can convert PCB file to schematic file on Protel DXP

[waatage]

Hello Friends,
Does any one know how to convert PCB file to
schematic file on the DXP Protel 2004 or other version? please tell me
the steps to follow, if it is possible.

With
regard

Usman

 

[Brad Velander]

Usman,
There is no automatic manner to get there. You would have to manually
compile the schematic from reverse engineering the PCB design yourself, then
check the schematic for accuracy/correctness against the PCB until you got
it right.
I would have to believe you are looking for a shortcut but you don't
understand the process even by which the PCB was originally designed. There
are no shortcuts, only managers and engineers that don't understand the
process think that CAD design is simply punching the right buttons.

 

[waatage]

Brad,
Thanks for your reply,
BUT
Actually by mistake ,i delete my design which i made on
schematic, but i have its PCB and PCB's layout. Now i dnt remeber the
acutal values of resistors and capacitors and their interconection
with other components,
Thats why i asked for the method to get back my schematic
from my layout.

I knew that doing reverse engineering ,i can get that
interconnections but still i wouldnot be able to have the values of
resistors and capacitors
..
So if u know any advance method for this please tell me,


With regards.

Usman

 

[Boris Mohar]

Brad,
Thanks for your reply,
BUT
Actually by mistake ,i delete my design which i made on
schematic, but i have its PCB and PCB's layout. Now i dnt remeber the
acutal values of resistors and capacitors and their interconection
with other components,
Thats why i asked for the method to get back my schematic
from my layout.

I knew that doing reverse engineering ,i can get that
interconnections but still i wouldnot be able to have the values of
resistors and capacitors
.
So if u know any advance method for this please tell me,


With regards.

Usman

I use Orcad PCB386+ and I can query the part ad get its value. Maybe your
program can do the same.



Regards,

Boris Mohar

Got Knock? - see:
Viatrack Printed Circuit Designs (among other things) http://www.viatrack.ca

void _-void-_ in the obvious place

 

[Peter Bennett]

Brad,
Thanks for your reply,
BUT
Actually by mistake ,i delete my design which i made on
schematic, but i have its PCB and PCB's layout. Now i dnt remeber the
acutal values of resistors and capacitors and their interconection
with other components,
Thats why i asked for the method to get back my schematic
from my layout.

I knew that doing reverse engineering ,i can get that
interconnections but still i wouldnot be able to have the values of
resistors and capacitors
.
So if u know any advance method for this please tell me,


With regards.

Usman

I've used Protel 99SE, not DXP. In 99SE, I think there may be a way
to produce a bill of materials that would include the component value
(but I've never used it...). If not, you can examine each component
on the PCB and look at its "comment".

Did you not print the schematic before designing the board? You
should also be able to find backup schematic files somewhere.


--
Peter Bennett, VE7CEI
peterbb4 (at) interchange.ubc.ca
new newsgroup users info : http://vancouver-webpages.com/nnq
GPS and NMEA info: http://vancouver-webpages.com/peter
Vancouver Power Squadron: http://vancouver.powersquadron.ca

 

[Brad Velander]

Okay Usman,
Your task is not quite so daunting then. Yes as Peter mentioned, you can
probably get your values from the comment field of the parts within the PCB.
That is the usual location for the values to end up in if you used the Part
type field in the original schematic. You could also use the output tools to
generate a BOM from the PCB and include any information that was passed
through to the PCB parts through parameters or any other means.

Then of course you will also need all of the original symbols, should be
simple as long as you had a library that wasn't deleted. Then the
interconnects more or less manually, then check the schematic against the
PCB until you get no changes being performed as an ECO between the schematic
and the PCB.

Your earlier comments sounded like the rookie or someone expecting a
single push button solution, hope you didn't take my comments too harshly.

 

[TT_Man]

Hello Friends,
Does any one know how to convert PCB file to
schematic file on the DXP Protel 2004 or other version? please tell me
the steps to follow, if it is possible.

With
regard

Usman

The .sch will be in your backup folder as - 0ch,1ch,2ch ( it is on protel
client).Just rename one of them to .sch and import it into DXP

 

[Robert]

Brad,
Thanks for your reply,
BUT
Actually by mistake ,i delete my design which i made on
schematic, but i have its PCB and PCB's layout. Now i dnt remeber the
acutal values of resistors and capacitors and their interconection
with other components,
Thats why i asked for the method to get back my schematic
from my layout.

I knew that doing reverse engineering ,i can get that
interconnections but still i wouldnot be able to have the values of
resistors and capacitors
.
So if u know any advance method for this please tell me,


With regards.

Usman

Can't you export the netlist of the PCB from the Layout tool into an ASCII
format? The tools I'm familiar with can. Perhaps as part of the ECO process.
That would give you the values of the components as well as the connections.
Given that it's a lot easier to rebuild the Schematic.

Robert

 

[josabraham]

Try out reverse Engineering options in EDA tools.

Hi,

You can try reverse Engineering option in EDA/ECAD tool to reconstruct the design from your existing files.

For example EDWinXP from Visionics allows you to reconstruct the design from Gerber files.
You can fully reconstruct the design using EDWinXP from your existing files , by working with the reverse engineering too there.You can try this option