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How could I export a list of reference designators in a board area?

March 31, 2020, 10:13 am
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I'm a Producibility Engineer who gets to review new PC designs during the design phase, looking for areas that might prove "challenging" to manufacture. We've got a new design that has several challenging areas and are looking to produce a test board to work on our processes in those areas. I need to create a BOM from the brd file for just the parts we're interested in.

Ideally I would be able to select that area and then execute some kind of report generator to output the ref des of the selected parts. Is there a way to come close to that?

Thanks.

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island question

March 31, 2020, 11:23 pm
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hello

is there a way to activate "automatically delete isolated shapes" on the dynamic shape "instance" parameters?

as you can see below, it is deactivated automatically for some reason on the dynamic shape "instance" parameters.

i am aware of the isolated shape control on the "global" dynamic shape parameters.

but in some cases i would prefer not to delete all islands but keep some of them by setting the parameters of some shapes individually.

i feel like i am stranded on islands...

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Orcad Document Editor Feducials, Logos, etc

April 1, 2020, 8:03 am
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I have started to use document editor, and I am having troupble getting certain items so sho up on the PCB Views.

For example on the assembly drawing I want to show the the ESD logo I have on the baord, which isis placed as a mechanical symbol, on the board geometry, top silkscreen layer. I cannot find a way to show it.  I also have 3 feducials I would like to have shown, again these are mechanical symbols is a feducial padstack. 

Any thoughts?

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Dynamic Package Height

April 2, 2020, 8:31 am
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Is there a way to set a dynamic package height for a symbol that would take into account the stackup thickness?  We have several configurations where different stackups are required but the allowable insertion space doesn't change.  Unfortunately, the backside of the PCB has multiple height restrictions, so a blanket calculation and change would be tedious. 

Thanks

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Dynamic fillet

April 2, 2020, 9:27 am
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I am running Allegro 17.2 Professional license with hotfix 048 installed.

The dynamic fillet box is grayed out.

Anyone know if this feature is enabled on a later hotfix or some setting that might prevent using dynamic fillet?

Thanks,

Dan

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How to output all textblock used in board file

April 3, 2020, 12:45 am
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Hi All,

Is there any script available in order to make report for all the text blocks used in one design?

I want to standardize the text block for very design, before that I want to make some list what are the textblocks used and which class/subclass.

Thanks.

Eric

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Allegro Static IR drop dialog box does not appear

April 5, 2020, 11:58 am
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First time I have tried this, I am reading the manual PCB SI User Guide, chapter 9 Analyzing for static IR drop

I am on 16.3, license PCB SI XL.

Either command line irdrop, or menu Analyze -> IR Drop, the GUI analysis dialog box does not appear.

The command window shows its running the skill for the GUI:

Loading powerquest.cxt
Loading axlcore.cxt
Loading skillExt.cxt

but it does not launch the dialog box.

Suggestions?

Randy

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Regional constraint set at Allegro 16.6

April 6, 2020, 12:38 am
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Hi All,

I'm using Allegro PCB editor 16.6.

In my layout, I'm trying to create a regional constraint.

After I set the constraint region and the layer and assigned a region name - I marked the region on the layer with a rectangle shape and then open constraint manager window.

However, in "physical" tab, the "Region" section is not shown, thus can't set a regional rule set.

Am I missing something?

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How to run a trace on a plane

April 6, 2020, 11:05 am
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I have a power plane with a dynamic copper shape on it. I'd like to run a trace (different net) on it.

When I try, it simply places the trace on top of the shape and creates a line to shape error.

How do I fix this? Thanks in advance.

P.

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Zoom to Selection broken

April 7, 2020, 5:37 am
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Using Orcad PCB Designer Professional, 17.4-2019 S004 [3/2/2020] Windows SPB 64-bit Edition, Zoom to selection button is not zooming to selection. It only selects the selection. No zooming transpires. Can anyone else confirm this?

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Detect Allegro Version from PowerShell

April 7, 2020, 8:31 am
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From a PowerShell script, Is it possible to detect if Allegro/OrCAD is installed on the computer and in that case which version and which hotfix?

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How to view a PCB in an earlier version (OrCAD 17.2) which was designed using a later version (OrCAD 17.4) ?

April 7, 2020, 8:46 am
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I am new to using OrCAD and my colleague has designed a PCB using OrCAD 17.4, but I only have OrCAD 17.2.

Is there any way I can view this PCB design without having to upgrade to 17.4 (which is not an option at the moment) ?

Can my colleague save the PCB as an earlier version that's compatible with version 17.2 (much like Office tools where you can save as earlier Word versions etc) ?

Or can he convert or export the design so that's compatible with version 17.2 ?

Or is there a tool (online/plugin/app) that can convert the PCB to a format that's compatible ?

I have used PADS, Altium, Proteous, EasyPC and DesignSpark in the past but never OrCAD so I am about to start the online tutorials.

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Earn with Agenter

April 7, 2020, 10:10 pm
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It helps the Business to boost their sales and meet thousands of right sales agents.

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How to earn money

Online Earning

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Problems with PCB export from DE HDL

April 7, 2020, 10:18 pm
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Hello. I am trying to export changes from Design Entry HDL schematic to brd file but I got an error:

===========================================================
Start Constraint Override Import
Constraint File: C:/Users/shchyuchkin.e/Documents/SOS Workareas/Projects/1310EU015_Angstem_FET/worklib/1310eu015_angstrem_fet/packaged/pstcmdb.dat
Start time: Tue Apr 07 13:56:05 2020
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ERROR: Schematic supports creating XNets using DML Models but the Layout will create XNets only for devices having XNET_PINS properties. Change setting in Layout or Schematic, re-generate files, and re-run the flow.
ERROR: Can't import electrical constraint data (pstcmdb.dat)
===========================================================
Finished Constraint Update Time: Tue Apr 07 13:56:05 2020
===========================================================

I am not using XNets and I tried different export settings.

I have read several topics with the same question:

https://community.cadence.com/cadence_technology_forums/f/pcb-design/43528/exporth-physical-after-creating-schematic-to-make-a-brd-file

https://community.cadence.com/cadence_technology_forums/f/pcb-design/38866/export-physical-error

But I didn't found XNets settings in constraint manager window. I got such settings:

So I can't continue working with PCB. Help me please to solve this problem. Thank you.

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Can OrCAD be used to import or view gerber files ?

April 8, 2020, 5:54 am
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I am new to using OrCAD but other packages I've used support the ability to view and/or import gerber files, including the free tool Design Spark PCB !

Surely a professional package such as OrCAD can perform this ?

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Allegro PCB 17.4 Package Symbol Wizard Padstack Browser Preview Failed

April 10, 2020, 7:49 am
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Hi,

When I use Package Symbol Wizard to make a new package, there is a step to specify the padstack to use for the symbol. I can find all the padstacks but can't see it from the preview window as shown by the picture below. Is there something wrong with my configuration? 

 padstack browser picture

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Pan & Zoom Very Slow in Allegro 17.4 - HF005 & Prior Versions - Windows 10

April 11, 2020, 8:40 pm
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Hi guys, I have an issue with Allegro 17.4 maybe someone can offer some help on this as it is rendering 17.4 unusable on my system.

The issue is when I zoom in and also pan to some degree, but it is really prevalent during zooming in on the canvas when a design is loaded.

Using my middle mouse button "Mouse Wheel" as I zoom in one mouse wheel click at a time, the windows 10 :Busy Icon" is popping up through each zoom step.

The Icon that pops up like in the picture below is just there for a second through each zoom step.

17.4 has been this way since I installed it.

On the same system I also have 17.2 HF065 (Exact same HW ) and there are no issues at all. Zoom & pan seem very fluid and fast as one would expect. Not as fast as 16.6 :) but still usable.

Has anyone seen this issue on 17.4 ?

One other thing somewhat related. When 17.4 was released there was an issue with the OpenGl rendering of :"NetNames" on clines. Basically if you zoomed in close to a cline the netname would become fuzzy. In HF-005 OF 17.4 Which I installed today this issue looks to be fixed. Netnames on clines are crisp just like in 17.2. Looking at the CCR for 17.4 there is no mention of this unless it is lumped into some other category ?.

I am running Win 10 ver is 1909 (Build 18363.752)

Thanks...

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things I miss in 17.4

April 13, 2020, 6:20 pm
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3d cross section cut function.   Is that gone?

Also, with SP5, wonder if anyone can't turn off package-to-package DRCs to use DFA rules instead (Alllegro, not Orcad.)

Getting there though.  Definitely pretty nice.

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Function Key setup for a function

April 13, 2020, 9:39 pm
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Hi. I'm doing a copy of multiple elements in multiple locations and use the 'snap to/pin' as my end location. I'm looking to set up a function key (say F2) to do this. So once I start copying the elements and select them and set my start from point, I want the function key to 'snap to/pin' when I hover over the next pin location. Anyone have a trick for that? Thanks in advance.

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How to convert a pin to only drill/hole for connector clamping in an updated footprint?

April 14, 2020, 7:57 am
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I have this symbol in a library project that has been created some years ago.

Today I was translating the project to 16.6 starting by updating libs. Then I created the netlist and this process was OK, without any error. When I try to update PCB from netlist the process launches the following error:

ERROR(SPMHNI-196): Symbol 'CONNVMEST64PACACODADO' for device 'DIN 64_AC-H_1_CONNVMEST64PACACO' has extra pin 'X2'.ERROR(SPMHNI-196): Symbol 'CONNVMEST64PACACODADO' for device 'DIN 64_AC-H_1_CONNVMEST64PACACO' has extra pin 'X1'.

The fact is that symbol has no X1 and X2 pins. When I open the fooprint layout I can see how two holes for clamping the connector to the board is considered as two more pins:

I'm sure this two holes were created originally not for being pins connectors neither pads.

How can I access the footprint drill X2 and X1 above in order to say that these holes are not a pins?

Thanks in advance to everyone.

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