Hi..
I am trying to work on the six layer PCB board. In that i had configured BB via for the layers what ever to be used in the board. But my doubt is for through hole via i had specified the drill and pad. For the BB via configuration whether we can use the same through hole via size or to provide the new drill and new pad size for the BB via configuration.
BB via definition is pad size should be smaller or larger than through via size. Any idea about the configuration???
Thanks & Regards
Dhamodharan![]()
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What the drill size to be use in BB vias?
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Board Outline compose error
Hi,
I am designing a new baod Allegro 16.6. When I try to compose the Outline subclass of Borad Outline I see below message without any effect on board corners. I can't compose Route Keepin nor Package Keepi.
W- (SPMHIS-473): 1 selected items completely overlapped with segments from other selected items and have been filtered.
I would really appreciate any help on this issue,
Hossein
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PART PROPERTIES COLOUR CHANGE IN ONE SHOT
Hi,
I have a 100 pages schematic design,i want to change the colour of the part values for all the parts in the design.
i able to change page by page through partproperties editor but it resets the rotation type of the value to 0 degree.
Can anyone know how to change the part value colour(say for capcaitor 0.01uF) for the whole design without changing its rotation angle.
Thanks
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Constraints for fanout
Hi,
I want to create some rules for Allegro PCB when it creates fanout for my BGA. I have defined two types of VIAs and I want to force Allegro to use one VIA - and thick track width - for Power& GND pads and other VIA - with thinner track width - for signals. Where can I define such rules?
Any suggestions are welcome.
Hossein
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Why power net in Allegro PCB become white color?
Hello everyone,
I have one problem with Allegro PCB that after my PC shutdown suddenly
while open Allegro PCB, then startup PC and open PCB again so power net
become white color (it only show correctly color for top/bottom when
move mouse to net). I don't know why?
Can someone help me?
Thanks!
Please see image:
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question of DRC check for Soldermask to cline spacing with respect to top and bottom layers
Hello everyone~
I've meet a weird problem.
The DRC check can only find the spacing error of top layer, but can't find the error of bottom layer , I mean the Soldermask to cline spacing .
I've set the parameter in the blank of "Line to Thru Via", both layers TOP and BOTTOM I've set 0.2mm.
Additionally I've also set the parameter in the blank of "Soldermask to Pad or cline spacing",too.
Is there any to make DRC check find this spacing error of bottom layer?
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Is there any community for sigrity?
Hi..
Is there any community for the sigrity SI & PI analysis??????![]()
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How to split a power plane for various powers
Hi eb,
I am using Allegro 16.6 for my layout. I made GND plane by Z-copy from my board outline with an offset. Now all the board on this plane is assigned to my DG net. I want to know if there is a way to break out this plane into smaller regions and assigne other nets to them.
Any comments arewelcome.
Hossein
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Dehilight doesn't work for a net
Hi,
I've assigned a color to one of my nets in Allegro 16.6. When I want to dehiligh it, it doesn't work!. I see below message in the command section but nothign changes:
Net "Ag" dehighlighted.
I've done many things: running DB Doctor, trying to hilight it first and then dehilight it! (last case doesn't also work). That net only keeps the color I had assigned to it and nothing can be applied on it!. niether Highligh nor Dehiligh.
I would appreciate any help.
H.M
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MySQL with Orcad CIS Table Property type for Part Number
Hi
I am new to setting up a MySQL parts data base however I have managed to use MySql Community version to create a small database jus one table and 2 or 3 row. All i was trying to do is create a table and connect to the databse from Orcad CIS. It went fine i was able to do all of these but when I went to configure CIS I keep getting the ERROR #8023
ERROR #8023 The Table Propoerty Type of field Part Number in table main parts is not TEXT, STRING or CHARACTER
I have this property set as CHARACTER, i have also tried to set it to TEXT and then to Varablecharacter but every time i keep getting the ERROR #8023.
Can some one please help me.
Best regards
Dipak
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CIS Database Problem
Hi Guys
I have my MySQL database running for CIS now and I can access parts in the database and also place them in a schematic using the CIS Explorer. But when I try to link a placed part in the schematic to a database part (Edit -> Link Database Part...) I get the following error message:
ERROR(ORCIS-6250): ODBC Error Code: -1
Description: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'Load Capacitance , Physical_Package , Schematic_Part , PCB_Footprint , Manufactu' at line 1
ODBC Error Description: State:37000,Native:1064,Origin:[MySQL][ODBC 3.51 Driver][mysqld-5.0.51a-24+lenny5-log]
I don't have a clue where to start to fix this. Does anybody have an idea what's the problem? Btw, I use Capture CIS 16.5 and the MySQL Connector/ODBC v3.51.27.
Thanks in advance,
Martin
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user preference editor option is not enabled?
Suddenly the user preference editor option at setup parameter option is been not enabled . The message is "No preferences files found."
Any help....
Thanks & Regards
Dhamodharan![]()
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CIS Database Issues with MySQL
Today I have worked through a number of issues with using MySQL for the CIS Database.
I prefer MySQL over using a file based database in order to allow access for multiple users from multiple PCs.
In any case, the issue with the Part Number not being TEXT, STRING or CHARACTER was resolved by using the ANSI version of the ODBC driver.
Additionally, if you have spaces in your field names, you will get errors, which may be fixed by setting the delimeters in the capture.ini:
[Part Management]
Table Qualifier=`
Field Qualifier=`
A helpful hint to find issues is to set the debug output for database commands:
This Tcl command sets an option to display the SQL query in the session log window, that is created by CIS.
SetOptionString DisplayCisQuery TRUE
Now that I have the mappings all working I have one final issue.
Basically, the \ in the Part_Type is causing trouble. OrCAD is not escaping it properly - for 'Resistor\0402':
.... FROM `parts` WHERE `PartType` = 'Resistor\\\0402'
should be
... FROM `parts` WHERE `PartType` = 'Resistor\\0402'
Any ideas on how to fix this last issue? I like having multiple folder levels, but this may force me to have just one level of part types...
Cheers! Dave.
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Issues with Padstacks and RefDes
First of all, I just want to say I'm very new to the program and PCB design itself- that being said, hopefully these are two easy fixes...
The first problem I ran into is accidentally moving reference designators off to the sides of components as if they were going to be on the silkscreen layer; only to find out, they are on Assembly_Top. How do I COPY not move these over to the correct layer?
Secondly, I accidentally deleted some of the manufacturing outlines over pins a while ago and just noticed it. I thought maybe tools>>padstack>>refresh would do the trick, but it did not.
Any help would be greatly appreciated.
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Wrong naming of nets
Hi,
We are facing a strange problem that when we imported schematics to board file the net name appears too long in constraint manager as shown in attached image. How to overcome this issue? Using Allegro PCB Deisgn L v16.01
Any inputs will be appreciated.
Shiva.
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How to add NODRC_COMPONENT_BOARD_OVERLAP to a package
Hi,
I want to place part of my package out of package keepin of the board - it is a BNC connector - for some reasons and I have found a property which helps DRC checking ignore this error. As I read in the help of Allegro PCB I should add it as a property to PLACE BOUNDARY of package!. I want to know how I can add this property to a package?!..
Any suggestions are welcome.
Hossein![]()
I want to place part of my package out of package keepin of the board - it is a BNC connector - for some reasons and I have found a property which helps DRC checking ignore this error. As I read in the help of Allegro PCB I should add it as a property to PLACE BOUNDARY of package!. I want to know how I can add this property to a package?!..
Any suggestions are welcome.
Hossein
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LogoMaker - improved, and now multi-platform.
Please, please, please follow the instructions fully when installing. They are at the top of the Skill file and also here:
Download and install the precompiled potrace release suitable for your platform:
http://potrace.sourceforge.net/download
set the POTRACE_PATH environment variable to the path to the executable
eg. C:\utils\potrace
Download and install the precompiled ImageMagick release suitable for your platform
This may not be necessary if you use Linux as ImageMagick is often included in Linux installations:
http://www.imagemagick.org/script/binary-releases.php
eg. http://www.imagemagick.org/download/binaries/ImageMagick-6.5.3-Q16-windows.zip
If the path to the ImageMagick convert.exe file is not in your system path then set the MAGICK_HOME
environment variable to the path to the convert executable. (Run "convert -version" in a system shell to test).
eg. C:\utils\ImageMagick\ImageMagick-6.5.1-3
Install logoMaker_public.il into your skill folder.
Add load("logoMaker_public.il") to the allegro.ilinit file in your pcbenv folder.
Happy logoing,
Dave
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how to define the units in mm?
Hi..
Just now i had start to Analyze the quality of the signals in the pcb board. In case manually i want to analyse the signal manually means how can i define the units mm?
For the signal explorer the defaults unit of mils get used. Still how to change the units in mm?![]()
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How to create negative artwork or pdf?
Hi!
First, sorry for my bad english.
I'm not an allegro expert, i use it rarely.
I'm using allegro PCB Editor 16.5. So far i used positive artwork files and pdf-s in my designs for positive pfotoresist technology.
Now i have to crate artworks or pdf files for negative photoresist etching.
Of course it is simple if i just convert from positive to negative, but thats a big black film if there is little net.How can i create a negative file if i want to print only the clearance on the copper pour? I don't know if i am understandable or not.
I placed a dynamic shape on my old designs, and on the screen it looks good, but thats still positive. If i change the layer to negative then the clearance disappear between the lines and the shape and everything is merge into the plane.
Is there a solution?
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How to change the font in the user pref. options?
Hi..
I had tried to change the font in the Allegro PCB Design XL. In that font1 -Kanji & font2-Kanji are been used samely. when i had tried to change font from Kanji font ---> Arial font ption is not get updated.
Still my doubt is whether can we change the font in the user preference editor is possible. In case it is possible means what's the solution to changing the font?
Thanks & Regards
Dhamodharan![]()
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