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It's definitely NOT an RS-274X limitation and I can say that with 100%
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I've talked my colleague about what can and can't be done with RS-274X -
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Ian
Perhaps I ought to balance my own reply by telling you that the
Abdul,
I put your suggestion to my gerber-speaking colleague and he says that it
would be easy to hook up the RS-274X in the manner that you prescribe. His
only negative comments were : 1) that the definition files might be
different eg one user's definition of complex-teardrop1 might
I've seen a mechanism for achieving this recently on another tool. You can
add run-time attributes to each gate such as GROUP=FPGA1 and then during
annotation only parts with compatible attributes can/will be put together.
This could also be very useful for defining components in isolated
The new router coming, we are told, might be a more serious competitor to
Specctra. If this is true, then the price increases Protel might be well
worth it. Even if the router was not as good as Specctra but was
substantially better than the current router, it might still be worth it.
So we are
What are the first few bytes of the files (10 or so). That shouldn't give
any IP away! There might be a recognisable header...
Hello all,
We have been given responsibility for a large suite of technology from a
defunct US company (once owned by Cadence). The schematics are in OrCad
capture
Andrew
The first statement is a %AM statement which means Aperture Macro.
Within this statement, standard gerber recognises CIRCLE, LINE-VECTOR,
LINE-CENTER, LINE-LOWER LEFT, OUTLINE, POLYGON, MOIRE and
THERMAL. I assume that TH is an abbreviation of THERMAL. 201 is the
macro reference
Andrew
The rotation is almost certainly as you describe and one can only assume
that 0 is upright (+) and 45 is a cross (X). I can understand why GCPREVU
and others might not like the inside and outside diameters to be equal, but
in any event, a directly embedded pad (via?) shouldnt need any
Geoff,
Does your suggested pairing mechanism only come into play for components
which are placed on the back of the board or is it to be used elsewhere as
well?
Doug
_
Send and receive Hotmail on your mobile device:
Doesn't any unpaired layer (mechanical or otherwise) preclude the
implementation of a true flip board function in the future? The main
concerns about flip board have been what to do with layers especially those
that don't have a logical flipped layer, so doesn't adding more layers which
have
There are problems with doing X and Y flips - they don't swap layers and
they leave components in upside-down. The L-Flip (layer flip) with
selections is also fraught.
What purpose does X Y flip serve with respect to the components themselves
apart from sorting out assembly layer issues for
Is there any reason to have a designator for any type of passive item (nut,
washer, mousebites etc)? If not, then couldn't an item of this type be
designator free and therefore not subject to the netlisting interface...
Doug
'delete components not in netlist'
would be a lot more useful if
I think there are a number of precedence problems in the design rules. A
useful debugging tools is to right click on one of the pads/vias and select
the Applicable Binary Rules or words to that effect and it should show
you what rules it thinks it is applying to the entity. Probably won't
Ivor,
Camtastic will get your data in verbatim no problem, but it won't be able to
make any sense out it regarding components etc - gerber simply doesn't have
that information. Don't forget that gerber doesn't even have any info about
holes, so you can't expect any linkage in the 'Z' axis.
Looks like XP eats about 100 meg of memory
without anything else running.
There's a neat tool called Memturbo which makes Windows run much faster for
longer. It monitors memory usage and actively throws unaccessed blocks out
to disk so that programs can have more real RAM. It also throws
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