Normally when the mouse is hovered above the footprint, the pad quickly changed color.
However I notice in another system, the color changed regardless whether the mouse is hovered above. It slows down the system a lot.
How do I control that so it won't change color randomly in this particular system?
In constraint manager I set the value for impedance and make all nets close to certain tolerances. Then I it auto route and have bunch of impedance mismatch DRCs
1)I thought its constraint driven tool, so it should have routed within the tolerance of impedance I specified.
2)How to fix impedance mismatch. I try delay tuning, it didn't work. It just adds more delay.
sir, i have to design arm project so i need the arm controller from orcad.. can any one help me?
Hello,
I work on current conveyor circuits in the 0.35μm technology in orcad, and I would know what are the criteria for choosing the right parameters for NMOS and PMOS transistors among those present in the technology.
Best Regards.
As titled, is there a way to export drill data in Gerber format rather than Excellon directly from Allegro?
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Hello
1st I put a symbol from lib1.olb.
The location of pins were not adapted for my schematic, so I changed it (right-click on symbol --> "Edit Part").
Is there a technique to update edited symbol in library lib1.olb in order to use modified symbol in future projects?
Thanks in advance
Pavel
Hi,
I am laying out new circuitry on an existing PCB shape. I have been given DXF files of the board shape and a package keepout area. I was able to import the board outline, but I am having trouble getting the second shape in as a package keepout. Is there a way to import a DXF shape and add it as a Package Keepout? It is an oddball shape that would be a bit of a pain to do manually.
Thanks.
hi all,
i revised the package in the .brd file,and want to save it in my package lib,use the command export--libraries,
open the exported .dra file,found the package is different from the one in the .brd file,it seens that the package in the .brd file hasn't saved or updated.
what's wrong with it?
the attached picture left is package in the .brd file,right is package in the .dra file,they are different.
There is a way to display Absolute and Relative coordinates together in OrCAD PCB Designer Professional ?
In most cases when i move a symbol or other object, i need to know the absolute coordinates, but also the relative distance from origin of move. This is much important, is a real need.
In the past I have used Castar, Altium, Pads, but all these CAD, they visualize together the absolute and relative coordinates as defaults. Besides they allow to reset the relative coordinate in a select point in the pcb, and therefore to know the relative move from that point.
How must I do for forwarding this enhancement to Cadence ?
Thanks for any answer to this question, Gianni.
P.S. The image below it is only a proposal.
Hi all,
i need some clarification on length report which we will get it from allegro.
As i observed we are getting a etch report which includes only the trace length(in allegro etch length).
For example i am designing a board with 10 layers.I have taken my trace from top layer with 40 mils to 5th layer with 50 mils.if i check the report i get only 90 mils.
suppose i need with via delay,how to get it?
is there any option is available to get with via delay?
Thanks
Geetha.
I sent my PCB editor a DSN Capture file for PCB routing.
He says that it arrived with no components - he sees all wires but none of the components
All my components are from private libraries and do not use compoents from the standard libraries supplied with Capture .
I always assumed that a DSN file contains everything required to open it on a different system and do not remember I ever encountered such a problem.
My version is 16.2
Any advice?
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In PCB Designer Professional, when i move the symbols, the ratsnests are reconnected only after the symbol are placed. There is a way to reconnect the ratnests to the near points but during move symbols ?
Thanks for any answer to this question, Gianni.
Hi,
I'm installing the allegro Free Viewer 16.6 on a few windows 7 64 machines. When I launch the program as a normal user (without admin rights) i get this error:
E- C:/Windows/system32/allegro_free_viewer.jrl: Can't open journal file
If i run the program as admin I don't get this notification message. I have set permissions on the file so anyone has r/w to it.
If there any other way in which I can stop this prompt either by editing the registry or moving this file to a location which isn't restricted, the windows\systems32 folder has restricted permissions to all system files.
Thanks for any help you can give.
Paul
Dear All,
I need to compare the netlist generated by an Orcad design, with the netlist generated from the PCB file.
The PCB design was done using CADSTAR design editor.
This is needed to check if there is any mismatch in the circuit design and the PCB.
Can someone please guide me ?
Does anyone know if these footprints or schematic symbols exist, and under what name?
sub miniature toggle switches
standard tact switches
5 pin din (aka MIDI jack)
1/4 neutrik jacks
standard pcb mount dc 2.1 jacks
100mil headers
Any suggestions very welcome.
Is it possible to create Swappable gates for heterogeneous parts in Capture. I found the PARTGROUP property was added in 16.6, but I can't find any documentation on how to use it...
Jerome
Is there a reference listing anywhere of what footprints and schematic symbols there are?
what characters are not supported on artwork films?