can CTS help me with following issue?
In my design I have an SDRAM controler which operates at 100 MHz(10ns). Along with the adddress,data and control signals, the SDRAM controller provides the clock to the external Memory chip form...
View ArticleShow Global Pins in Schematic Symbol / Snap to Grid
In Part Developer under the PCB Librarian XL license, I'd like to create a schematic symbol (for TI ADS1299) with a a few logical pins (AVDD as an example) connected to multiple physical pins. I also...
View ArticleUnable to open V16.2 .brd file in V16.5 viewer
Have downloaded and installed V16.5 of the free viewer on a Win7 64 bit system. When trying to open a V16.2 .brd file I get the following error: ERROR (SPHMOD-36): Cannot open drawing. The database...
View Article[Help] How are input impedances of OpAmp meatured?
Hi,OpAmp has differential input impedance(Rd) and common input impedance(Rc). In my opinion, Rd=4*Rc. However, datasheet of OpAmp indicates that Rd is not simply related to Rc this way. Well, how are...
View ArticleNot able to route traces
When I am creating a via and trying to route trace from bottom layer to top layer, I am gettin a trinagle type symbol of the ratnest at the via and the routing is not complete.I have tried to manually...
View ArticleA problem in running simulation with ADE
Recently,I confronted a problem in running simulation with ADE.When I run an analysis(such as a DC analysis),the simulation result just keep the same though I changed the simulation condition.After I...
View ArticleChanging default web browser in Design entry HDL
Does anyone know how to change the default web browser that is launched when you clickon a URL within DE-HDL?
View ArticleTechnology attach failure
Hi- I'm working with Virtuoso 6.1.5 and having problem with technology file attachement. When I try to attach my library to different technology with ciw->tool->technology file manager ->...
View ArticleBoard outline help
Hi all, I'm working my way through transitioning from OrCAD 10.0 to 16.5.I've started a new design and have a few questions regarding board outlines in OrCAD PCB Editor:1) How can I create board...
View ArticleOpening Pcell while hierarchically browsing a Master Layout
Hi,I have a master layout and with various levels of heirarchy. My aim is to find and draw boxes around shapes belonging to a particular layer. The problem comes in when I come across an instance which...
View ArticleSKILL code to parameterize a property(e.g. w,l) of an instance in schematic...
Hi all,As the subject suggests, I want to insert parameters in a design to run further analisis (with the netlist). For the ease of the user, it is more instructive to somehow insert the parameters at...
View ArticleAbutment issue when using lxGenFromSource
Hi,I am doing a gen from source using the following skill command:lxGenFromSource(cv_schematic ?layLibName schLib ?layCellName schCell ?layViewName "layout" ?initDoStacking nil)then moving instances...
View ArticleMonto carlo simulation
i am using IC 6.1.5-64b with foundary file of UMC-180nm. i want to use monto carlo mis match simulation to find the gain of folded cascode op amp.in ADE-Xl after setup the test ,i include...
View ArticleERROR: Netlister: unable to descend into any of the views defined in the view...
Dear All,I am using a veriloga model symbol in my schematic.But when I am running the simulation I am getting the following error:-ERROR: Netlister: unable to descend into any of the views defined in...
View ArticleAssura QRC extraction
Hi, I have a question about Assura QRC extraction.When I have multiple ground nodes, which nodes do I need to set as a ‘Ref Node’ in the ‘Extraction’ tap of QRC parasitic extraction run form?...
View Articlespectre mtline connection problem
When using mtline model in cadence spectre schematic simulation, why I can not connect output of one mtline to output of another mtline? (warnings show there will be short circuit and floating nodes)
View ArticleHow to probe VHDL function variables in ncsim?
Hi, I need to view the variables used inside a function in simvision waveform viewer. How to add a probe to view these variables in the viewer?Thanks,Venkat
View ArticleError Creating a Printed Circuit Board Using OrCad Capture and PCB Editor
Hello,Its been a long time since I've worked designing PCB's. I'm using Orcad Capture for elaborating the schematics and then, and this part is where I'm having a problem, trying to creat the PCB...
View ArticlePlacement Edit not working?
I have two sites where I use PCB Editor. One at a customer / employer and the other at my home office. Yesterday I took a file from the customer to my home office to continue working on it last night....
View Articleskill function to create config view automatically with a specified template
Hello experts i am wondering if you have a skill function to create a config view automatically with a specified template .. also, i want it to set a particular cell/instance to a specfied view and...
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