Forum Post: Calculating differential admittance
In a classic two port network, we define the differential impedance zdiff as zdiff=z11-z12-z21+z22. Is there a similar equation for differential admittance ydiff?
View ArticleForum Post: Do XPS MS lead to fatal simulation errors?
I ever used IC6.1.6 version, and spectre or APS is so slow if the simulation scale is large. Now I switched version to IC6.1.8 and I found XPS MS. After a few trails I am sure this simulator is mucher...
View ArticleForum Post: Display/annotate the operating point of a subcircuit MOSFET in...
Hi My transistor is defined as a subcircuit (a traditional subcircuit, not an inline subcircuit). Is there a way to annotate the DC operating point of the subcircuit component in the schematic or...
View ArticleForum Post: Using optimization as calibration in large design spaces
I am very familiar with using pre-run scripts to calibrate a circuit, but I have recently started to learn about local/global optimization of a circuit. I understand that, canonically, calibration...
View ArticleForum Post: RE: Modgen is very slow
Hello RobMan, I am working on tsmc 22nm, with a small block with a simple diff pair Group array. and its frustrating modifying modgen, it takes 10 to 15 mins in every modify we make. Thank you for the...
View ArticleForum Post: RE: Lost my design files from Capture. Why does this keep...
Hi Grax, OrCAD Capture offers Autobackup feature. You can access it from Options menu> Autobackup The design backup, as defined in the Multi-level Backup settings dialog, triggers only when the...
View ArticleForum Post: How to use GetObjectOccurrences of DboPartInst in orcad?
I want to get all occurrences of a Partinst. I found the PartInst class has a method GetObjectOccurrences . But I don't know how to use it. I can't find any example from internet. Could anyone help me?
View ArticleForum Post: Tooling holes versus Fiducials - Do I need both?
In technical discussions this week, a question arose in relation to space saving: "Can I opt to use fiducials over tooling holes? Why do I need both?" It is a valid question; both fiducials and...
View ArticleForum Post: RE: Not add suffix to a subdesign
You mentioned that you have two sub-designs. Do you mean, two identical hierarchical blocks (sub-designs), you have placed on schematic and on one of them , you have defined SUBDESIGN_SUFFIX property...
View ArticleForum Post: RE: Not add suffix to a subdesign
No, they are not identical. But for one of them I don't want to add any suffix. For example if I have U1 in the subdesign, I want to keep U1 after packaging the top level design.
View ArticleForum Post: RE: How to use GetObjectOccurrences of DboPartInst in orcad?
Hi Jadystone, Please check the below code for getting the occurrence of a selected part: set lSelObj [GetSelectedObjects] foreach $lObj $lSelObj { set lOccCount [$lObj GetOccurrencesCount] for {set i...
View ArticleForum Post: Skill-Command for execute printing in the print preview menu
Cadence 23.1: By executing "plot" in the command-line, the following window appears. Is there an skill command that can be used to start printing (red arrow)?
View ArticleForum Post: Orcad Capture 23.1 won't back annotate from Orcad X / PCB Designer
I've designed two boards now without too much trouble. The forward annotation works great (ECO | Update PCB). However, the other direction ( ECO | Update Schematic ) always fails. I'm not sure why...
View ArticleForum Post: RE: Skill-Command for execute printing in the print preview menu
Which tool is this from? There are many releases with 23.1 as the number and no release or tool called “Cadence” - I suspect you’ve posted this in the wrong place but I don’t know where I should move...
View ArticleForum Post: Delete layer through hierarchy
Hi all, I need to delete some specific layer through hierarchy. I know I can use Find/Replace and replace those layers to text or unuse layer, but I more prefer to delete them. Do you have any...
View ArticleForum Post: Changing the number of stdVia arrays with different sizes of vias...
Hi there, I could use any help. Let's say I have 2 or 3 different sizes of via arrays stacked. For example, 1) Group1 : Via1/Via2/Via3 = 0.1umx0.1um 2) Group 2: Via4/Via5 = 0.2umx0.2um 3) Group 3 :...
View ArticleForum Post: RE: How to use GetObjectOccurrences of DboPartInst in orcad?
Great! It works! This is my code to puts the occurrences ref out of a Dbo PartInst . set lPartOcc {} set lSelObj [ GetSelectedObjects ] foreach lObj $lSelObj { set lOccCount [ $lObj...
View ArticleForum Post: RE: Changing the number of stdVia arrays with different sizes of...
Jenny, Your code (and a plea from me to everyone to post code as text rather than screenshots - if I had wanted to try it out, I would need to either type it in or use OCR to try to read the code from...
View ArticleForum Post: RE: Skill-Command for execute printing in the print preview menu
Cadence Allegro X 23.1 (S003)
View ArticleForum Post: RE: How to run Celsius Thermal Solver in AWR
How to add thermal stackup in global definitions.
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