Suggestions follow each related paragraph of the original message:
At 03:02 PM 5/19/02 -0700, you wrote:
I'm working on laying out my first board with power
planes and I have a few questions.
1. I placed an arc on the plane (my board is circular)
to form a circle all the way around the edge of
Hi, Matt;
Let me ask first how you created the circular board with the
segmented Planes. Did you draw a circle using a 50mil arc of,
say, Internal Plane 1, then add 50 mil Tracks of Internal Plane 1
copper to force segmentation of the circle? If so, you are creating
endless headaches for
Hello,
The first thing that I did was to search for chip on board on the internet. The
second and probably the most important thing I did was talk to a couple of board
houses regarding pad center to pad center spacing (if testing is required), and
minimum pad size and via in pad.
A couple of
We use .wmf format. The files sits on a network drive, and NOT in a .ddb.
Works fine. To make it portable you would have to include the .wmf file with
the schematic and probably set your sch template to link to a file on a C:\
drive.
Regards
Igor
-Original Message-
From: Dennis
Bernhard Koss wrote:
...always when I import the template the bitmap is shown but the next time
I open the schematic there is just a broken link to the bitmap...
As the images (whether .bmp or .wmf) are not placed inside the schematic or
template but linked, then Protel should always be
Sorry for my previous post - the information I gave there wasn't checked
to the botttom.
Workaround No.1 - importing image file to the .ddb really works, but
... not always. I was deaply surprised when I discovered, that after
closing Protel the knowledge about the image disappeared.
After
On 03:02 PM 19/05/2002 -0700, Embedded Matt said:
I'm working on laying out my first board with power
planes and I have a few questions.
1. I placed an arc on the plane (my board is circular)
to form a circle all the way around the edge of the
board. The idea is to keep the plane away from the
Matt,
I expect that the arc on the outside is OK. 25 mils is enough clearance. I
assume that you are actually splitting the planes, not just drawing traces
to separate regions. You have to choose a net for the plane, and then add
split plane regions for the other nets. The region boundary is
Hi all. Can someone explain the use Embedded objects in the PCB? The
knowledge base item 2064 references a document (How to utilize
EmbeddedObjects) but the link to it does not work. I understand they are
only accessable in the SKD but can they be viewed when a PCB is open? Are
they only used for
Okay, I'll jump in... The PCB fab house can do what ever it wants to make
the board.YOUR FAB DRAWING allows your company to ACCEPT/REJECT it if it
does not meet your standards. Tolerances need to be specified for
inspection. The FAB Drawing is the control document that protects your
company.
At 03:02 PM 5/19/2002 -0700, Embedded Matt wrote:
1. I placed an arc on the plane (my board is circular)
to form a circle all the way around the edge of the
board. The idea is to keep the plane away from the
edge of the board. The assigned net for the arc is
No Net. Is this the correct
hi waheed,
a polygon is good when you have irregulary shaped planes
of copper. gerber files are what you finally knock out
when you are ready to get a board made. you walk thru
the file/cam manager and then F9 to generate them. you
send these to the board shop to get the board made, along
A polygon makes a good ground fill (GND).
The Gerber and NCDrill files are for the board manufacturer and
the pick and place are for the SMD-placers.
Rene
Waheed Bajwa wrote:
Hello all,
Whats a polygon good for? Also what are Gerber, NC Drill and Pick and Place files
(CAM)
* * * * * * *
--- Harry Selfridge [EMAIL PROTECTED]
[SNIP]
3. I have split the plane into multiple nets. The
tracks that indicate the boundaries are 45 degree
and
90 degree tracks. Recall I have an arc on my board
edge. Because the 45/90 tracks and the arc are not
compatible, the tracks extend
Brian,
Let me ask first how you created the circular board
with the segmented Planes.
The procedure you outlined is pretty much exactly what
I did. It's nice to get confirmation that I'm on the
right track.
Thanks for the warning about what not to do. I'll try
to avoid angering Mother
Ian,
I assume you are placing a split plane on the
power plane layer. Is this
correct?
Yep.
Split planes allow section of the power plane to be
at different voltages -
is this your intention?
Yep.
I understand what you mean about placing any-angle
tracks to approximate the board
At 02:35 PM 5/20/2002 +0500, Waheed Bajwa wrote:
Whats a polygon good for?
For filling an area of a PCB with copper. Also called a copper pour.
Properly set up, the inside of the polygon will fill with copper (track)
except for clearances as determined by the appropriate design rules around
Greetings Y'all,
A couple years back I came across a little freebie utility called
bmptopcb.exe and it was handy for getting logos onto PCB silkscreens, but I
can't seem to find it again. It would run from a DOS command line and output
a protel 98 pcb file that would easily import into 99se.
Two easy ones (I think):
(1)
I have a multi-page schematic with ports to connect
nets between pages. Is there any way, besides adding
a net label, to force Protel to give the net the port
name in the netlist instead of something like R54_1?
Why do I care about net names? Because descriptive
At 10:36 AM 5/20/2002 -0700, Brooks,Bill wrote:
Okay, I'll jump in... The PCB fab house can do what ever it wants to make
the board.YOUR FAB DRAWING allows your company to ACCEPT/REJECT it if it
does not meet your standards.
Yes. Another reason not to specify as-drilled sizes. It is a lot
Hi Jim,
I had a play once with these embedded objects and as far as I can recall
you only have the two fields (Name and Description) which are mentioned in
the SDK help files. It is an object in itself and not a 'property' of other
objects like tracks or files or such, so these can not be
There is a free bmp to protel converter in the filespace for
[EMAIL PROTECTED] To access it, one must be registered with
yahoo as a member of the mailing list. There is another converter from a
designer in New Zealand: -- from a 1999 post by Harry Selfridge. I don't
know if Mr. Velthuizen is
At 12:16 PM 5/20/2002 -0700, Embedded Matt wrote:
Two easy ones (I think):
(1)
I have a multi-page schematic with ports to connect
nets between pages. Is there any way, besides adding
a net label, to force Protel to give the net the port
name in the netlist instead of something like R54_1?
If
[snip]
Why don't I want to add a net label? Because then I
have a wire with a net label and a port right next to
each other -- it just looks silly.
[snip]
Then put the net label on the other end of the wire.
In fact, I like to put net labels on both ends of the wire
(sometimes in the
On 12:16 PM 20/05/2002 -0700, Embedded Matt said:
Two easy ones (I think):
(1)
I have a multi-page schematic with ports to connect
nets between pages. Is there any way, besides adding
a net label, to force Protel to give the net the port
name in the netlist instead of something like R54_1?
No.
Warning
Unable to process data:
multipart/mixed; boundary=--B01DD1332A0DA57C
On 06:28 PM 20/05/2002 -0400, Abd ulRahman Lomax said:
At 12:16 PM 5/20/2002 -0700, Embedded Matt wrote:
Two easy ones (I think):
(1)
I have a multi-page schematic with ports to connect
nets between pages. Is there any way, besides adding
a net label, to force Protel to give the net the port
--- Abd ulRahman Lomax [EMAIL PROTECTED] wrote:
If you are using Net Labels and Ports Global scope,
you must place a net
label to force the assignment of a net name. With
this scope, you don't
need to use ports at all
I don't? Great! But then how do I generate the
little strings
At 09:03 AM 5/21/2002 +1000, you wrote:
On 12:16 PM 20/05/2002 -0700, Embedded Matt said:
Two easy ones (I think):
(1)
I have a multi-page schematic with ports to connect
nets between pages. Is there any way, besides adding
a net label, to force Protel to give the net the port
name in the
Hello Waheed,
Monday, May 20, 2002, 2:35:29 AM, you wrote:
Hello all,
Whats a polygon good for?
Polygons are used to place a copper area (very often a small ground plane)
on the board.
Also what are Gerber,
Gerber Photoplot files will contain the instructions that a
photoplotter will use
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