Forum Post: RE: Variation in Hierarchical Design occurrences
I don't think so. Sounds like you need four H-Blocks, one with one output, one with two outputs, etc. Then place the appropriate block in your top level design as required.
View ArticleForum Post: RE: Input Capacitance Characterization in Cadence Liberate
Hi Anuradha, The example is a generic one, it is not necessary an recommendation for a particular type of cell. 1. a harness will be used to provide a driver or bias or load. power characterized based...
View ArticleForum Post: Is there any way to forcing update for layout environment value?
when we use envSetVal to change a value for layout cell view, such as enableDimming , the current layout won’t update display result. But when we reopen this layout , the display is changed. So is...
View ArticleForum Post: RE: place via array acting funny
All options and settings are properly set, Still cannot get it to place a non-circular array.
View ArticleForum Post: Creating a symbol view from the source code pointed by SimVision
Dear All, In Sim Vision, one can go to a particular block in Schematic Tracer also one can go to the Source Browser. Once, it points to source browser, is it possible to create a symbol view of that...
View ArticleForum Post: RE: place via array acting funny
Any way you can PM me a link to the board to look at? I can't solve it. Or we can do a screen share if that would help. Again, PM me. Thx
View ArticleForum Post: RE: Input Capacitance Characterization in Cadence Liberate
Hi, one strange observation I find after using the input drivers in the harness, is the non-monotonicity in index1 data. Take a look at this (in the generated .lib file) : cell_rise...
View ArticleForum Post: RE: Input Capacitance Characterization in Cadence Liberate
Are you using -auto_index option in the char_library? if so, this looks like a bug. Guangjun
View ArticleForum Post: RE: Input Capacitance Characterization in Cadence Liberate
No, I don't. You may find the settings in following : https://pastebin.com/kwQnDew7 Thanks Anuradha
View ArticleForum Post: RE: Input Capacitance Characterization in Cadence Liberate
if you are not using -auto_index option, then this index-1 table comes from your own definition. Please check your define_template command for this template. Guangjun
View ArticleForum Post: RE: Input Capacitance Characterization in Cadence Liberate
Unfortunately not ! That's the strange thing here. Here's my definition for index-1/2 tables : define_template -type delay \ -index_1 {0.002 0.0120375 0.0472711 0.114555 0.21938 0.366461 0.56 } \...
View ArticleForum Post: RE: Input Capacitance Characterization in Cadence Liberate
this is odd. please file a support case. That is the only way I can look into this. Regards, guangjun
View ArticleForum Post: RE: Input Capacitance Characterization in Cadence Liberate
Okay, but jut to confirm everything looks correct, can we directly assign a pre-define capacitive load like below to the output of the cell: //-------------------------------------------- In Harness...
View ArticleForum Post: RE: Input Capacitance Characterization in Cadence Liberate
Additional load can be added. it is quite common to to have a resistive load, eg. pull-up/down. For a capacitive load, you can either use a harness, or a wrapper subckt with the same cell/ports names...
View ArticleForum Post: RE: Input Capacitance Characterization in Cadence Liberate
I think that's already been done in my harness circuit (so what I did seems correct). Regarding the odd numbers in the .lib file, I have no idea why it happens. I will file a support case for that....
View ArticleForum Post: Can't retain the create->probe option across sch designs in tabs
I wrote the following code to open the selected instances in layout/schematic in a new tab. But somehow this doesn't workout well since the create->probe doesn't work well in schematic across the...
View ArticleForum Post: Calculate DNL of a DAC in Cadence
Hi all, I was wondering if there are any ways to calculate DNL of a DAC in Cadene without SKILL scripting or moving data to MATLAB. The "DNL" function in the calculator seems hard to be used and...
View ArticleForum Post: RE: Duplicate refdes
The forum isn't letting me upload code properly. procedure( Duplicate() let((logFile, oldSetData, refdesText, multiRefdesText, port) logFile = "DuplicateRefdes.log"
View ArticleForum Post: RE: Duplicate refdes
oldSetData = list(axlGetSelSet(), axlGetFindFilter(nil), axlGetFindFilter(t)) axlClearSelSet() axlSetFindFilter(?enabled '("noall", "text", "invisible"), ?onButtons '("noall", "text")) axlAddSelectAll()
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