Gisbert,

First question  for you :  when you were done with specta did specta say 0
conflicts or were there conflicts remaining in spectra.?  That would explain
why you read all the errors back in protel .  Second, all of the vias read
back from specta will have a hole size of 28 mils.  This will also cause
tons of errors so you globally need to change them.  And last for routing
blind and burried vias in spectra, you either need to seed the design, or
identify them then read the dsn file with wordpad.   Write down the names of
the vias  ie Via10, 11,12, etc   Then while in spectra, deselect all vias
then select only the ones you wish for routing.  Hope this helps

you can email me direct if you need any assistance
[EMAIL PROTECTED]

Mike Reagan
EDSI
Frederik MD





----- Original Message -----
From: <[EMAIL PROTECTED]>
To: Protel EDA Forum <[EMAIL PROTECTED]>
Sent: Thursday, January 17, 2002 11:22 AM
Subject: [PEDA] SPECCTRA interface


>
> Hi all,
>
> I did a design with blind and buried vias (7 signal layers, 3 power
> layers), which I had routed by SPECCTRA. All looks fine in SPECCTRA, but
it
> won't read back to Protel (actually it will, but thousands of errors show
> up). I know I have to correct the drill size of vias manually, as either
> Protel or SPECCTRA messes this up. But as it looks like now, also the
> information of from which layer to which layer a via is defined gets
messed
> up as well. To rework this manually is almost impossible. What am I doing
> wrong?
>
> Regards,
>
> Gisbert Auge
> N.A.T. GmbH
>
>


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