Plot issues in IC 615
I have upgraded to IC 615 from IC 613. But I am facing problems:1. In spectre RF when I do s parameter simulation and try to plot gain circles (Ga,Gp etc) I get nothing. Noise circles work well. I can...
View ArticleHow do I get the name of metal layers from the tech file
In the techParams section of my techfile, there are variables called "metal1_layer", "metal2_layer", ect, all set to the layer and pourpose pairs that show up in the LSW. Is there a way to get the...
View ArticlePin rename
I have a script that places the pin in the appropiate place according to the lower pin place.When I bring the pins in through VXL the pins are rectangle and the pin in the lower cell is a polygon. The...
View ArticleDelete large number of shapes efficiently
I have a large number of shapes that I need to remove from the layout. I find that the delete command seems to take exponenentially increasing amounts of time to run as the number of shapes selected...
View Articlecustom menu
We are using Cadence 16.5 & I want to create custom menu for our CAD group.First I added menu in allegro.men (...folder\share\pcb\text\cuimenus), POPUP "&CAD Menu"BEGINMENUITEM "&Bead...
View ArticleCan't choose directory for netlist files
When netlisting from Design Entry CIS for the PCB editor, the dialog box is drawn with the right side of the box including the browse button for the Netlist Files Directory obscured. It's a major...
View ArticleA simple question about PCB antenna?
Have a question about PCB antenna in schematic. I am doing a design which include a bluetooth PCB antenna.This pcb antenna is only a trace. I am wondering should I put a schematic symbol of antenna in...
View Articlehow cadence do to calculate Z11 in a psp analysis
hi, i'm simuliting a circuit, where i connect 4 switching caps to the port, than i run a psp annalysis to get the input impedance"Z11", and i want to know how spectre do to give such result, it's for...
View ArticlePSPICE model
I'm using Virtuoso 6.1.5.I downloaded a PSPICE model from a supplier.However, it doesn't work because of syntax. Could you give some advices to solve my problem?(For the confidential reason, I have...
View ArticleGenerate netlist with subckt statement for top level
I'm generating a netlist from CIW using:simulator('spectre)design("libName" "cellName" "viewName")createNetlist()This works fine but I would like to enclose the top level cell in .subckt/ends...
View ArticleClik here to view.
basics of thermal pad / power pad footprint creation
Hello, I'm new to Cadence, coming from Altium. I'm using Allegro Design Entry HDL and PCB Editor, rev 16.3. As part of the new design and "new to designing with Cadence" process, I am creating parts...
View ArticleDifferential Pair routes with No Gap
Hi,I'm using OrCAD PCB Designer and have created differential pairs. When I manually route the pair, the gap between traces is always zero no matter what I set the gap to in the contraints manager. I'm...
View ArticlePspice model errors in Virtuoso
Hi Guys I am trying to simulate MAX9643U and EL7202 (using their Pspice models) as a part of my design, in Virtuoso. While I have reviewed many similar problems and solutions in this informative...
View ArticleReqular expression in skill programmin
Can anyone explain me how to use use the regular expression in skill programming........I'm geeting many info from cadence from that I want only PMOS and NMOS information from this command...
View Articleopening a cell layout view in GUI mode using SKILL
Hi, How to open a layout view in GUI mode using skill code? I want to open a cell layout view in XL mode.dbOpenCellViewByType will open the cell in background with specified library, cell name and...
View ArticleOrCad 16.6 Lite
Hi all,I've just tried OrCad 16.6 lite version. I used capture cis to design a simple circuit, but I wasn't able to run Pspice because the assosiated toolbar was unabled.Can anyone help to this?Thanks...
View Articlehow create a ".cir" file in Orcad 16.3
Hello, I would like to create a "cir." file in Orcad 16.3 but I'm a little lost, is that you can help me? is and what you can tell me how to change the number of output bipolar transistors, ie, I find...
View ArticleWhy can't I login to this forum with IE?
Just a repetitive problem I'm having. My Win7 64-bit PC and IE10 will not let me log-in to the Cadence forum. No errors, block notices or anything. It just won't do it. Log-in attempts spend a few...
View Articlespecctra quit unexpectedly with an exit code of 5
Hi guys, yesterday when I ran the command of 'automatic router ' in PCB Editor, the message ' specctra quit unexpectedly with an exit code of 5 ' was shown on the screen and I was confused , because I...
View ArticleBlock execution in SKILL file while a form is on the screen
Dear SKILL expertsI tried to write a SKILL function that shows a form created by hiCreateAppForm() on the screen and blocks execution until the form is removed from the screen by the user with a OK or...
View Article