Forum Post: Monte Carlo simulation: there are two peaks
Below are my setting and the curves. You can find that, there are two peaks on the right side curve. I really don't have idea why it has two peaks. Thanks.
View ArticleForum Post: Delay Tune does not work for inner signal layers in pcb Designer...
Hi, I'm using OrCAD pcb Designer professional version 17.2-2016 with Hotfix_SPB17.20.049. I tried to tune some traces to match them (data and control signals for a emmc, and I have already set the...
View ArticleForum Post: RE: Cadence Orcad/Allegro SPB 17.2 Release
Well, I am actually looking for RF and Microwave capabilities at greater than GHz frequencies - so I think or I was told that OrCAD is not as good as Allegro for that ? Is that correct ? Allegro is the...
View ArticleForum Post: Markers on padstacks in PCB editor
I have completed the PCB design, However as can be seen in attached file , there are the markers and same are appearing in gerber output (attached). Please suggest what is the error and how to remove...
View ArticleForum Post: RE: Monte Carlo simulation: there are two peaks
That's an impossible question to answer without more info - probably seeing the testcase would make it easier (so customer support would be the right avenue). My first impression is that your...
View ArticleForum Post: Plotting gain versus output range
Hi everyone, I am currently designing an OTA, I have achieved my specs but I wanted to examine how the gain of the OTA depends on the output range. How can I plot gain versus output range? Kind...
View ArticleForum Post: RE: Markers on padstacks in PCB editor
Hard to tell from the picture but I suspect that you have the drill symbols on the artwork layers, typically, the drill legend would only be enabled for its own film in the output. (You may have...
View ArticleForum Post: RE: Delay Tune does not work for inner signal layers in pcb...
I guess anything could be possible but this does seem to be working fine for me, admittedly with hotfix 50, and I would have expected a common activity like Delay tuning to not have an issue. The...
View ArticleForum Post: RE: Cadence Orcad/Allegro SPB 17.2 Release
There isn't anything "fundamentally" different between OrCAD and Allegro PCB Designer when it comes to placement, routing and rules but IF you add the Allegro RF Option, you will get PCB editing that...
View ArticleForum Post: Characterization of a transmission gate (Liberate)
Hello, I am trying to characterize a basic transmission gate (nmos and pmos in parallel, with complementary select signals, unbuffered input and output) with Liberate. The thing is since the input is...
View ArticleForum Post: Floorplanning and scripting problems
Hello, I am running into some problems with the floorplanning of my design. My script basically consists of: 1- Change the floorplan size for a given density specification 2- Ungroup the top module,...
View ArticleForum Post: RE: Creating Netlist--Error(ORCAP-32007):Netrev failed. Please...
Hey steve, I feel like i've done everything you suggested (minus repeating the uprev steps for bsm, ssm, fsm and osm, because I don't seem to have those options. Only have devpath, interfacepath,...
View ArticleForum Post: for choosing the frequency range of any digital circuit
hello, can any when suggesting how we can decide any digital circuit work up to which frequency range ?? how we take the range of frequency for plotting the graph between power, delay, and PDP??
View ArticleForum Post: SKILL code to change all the existing Metal layers to its...
I'm a very beginner to the SKILL scripting, so just looking out for help to write a SKILL code to change all the existing Metal layers to its corresponding fillBlock layer in my layout. As a start i...
View ArticleForum Post: RE: SKILL code to change all the existing Metal layers to its...
There are a couple of issues with the code, the first is that variable 'm2' will be nil, but perhaps more importantly, geGetSelSet() returns a list, and so the result might be 'nil' or '("M2") or...
View ArticleForum Post: RE: SKILL code to change all the existing Metal layers to its...
Hi, For one geGetSelSet() returns a list and not a shape. Assuming that you did select a shape (and not an instance or via or whatever) you need to get at the (first and only) element in the list in...
View ArticleForum Post: RE: SKILL code to change all the existing Metal layers to its...
Thanks a lot for your quick response. But, this is a bit different from what i'm looking for.
View ArticleForum Post: RE: SKILL code to change all the existing Metal layers to its...
Thank you so much Lawrence, i think this is something closer to what i was looking for. Ultimately i was trying to find all the M2 in a selected set of groups and do certain operation. Basically, i...
View ArticleForum Post: RE: SKILL code to change all the existing Metal layers to its...
So, is there a way i could check the list for m2 (because the selected list could have other layers as well) and whenever there is an m2 found, change its layer purpose to fillBlock and add m2-1 as...
View ArticleForum Post: RE: SKILL code to change all the existing Metal layers to its...
I'm planning to do this by hard coding it for all the layers like: cv=geGetWindowCellView() shapes=geGetSelSet() dbLayerOr(cv list("m1" "fillBlock") shapes) dbLayerOr(cv list("m2" "fillBlock") shapes)...
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