Variables in the SPEC section of Cadence Explorer
Hello everyone,I am using Virtuoso IC 6.1.8. In explorer in the outputs setup tab, can we include a pre-defined expr name in the SPEC column. For example I have my VIH_spec as the name of the expr and...
View ArticleClik here to view.
ADE output calculation from other expression not working
Hi Cadence,I recently moved from using IC 6.1.6 to IC 6.1.8.In IC 6.1.6, I always calculated my efficiency by first calculating PIN,POUT, and PGATE from expression and re-used the names of expression...
View ArticleSimulation(AMS simulator) stop when results are appended or reloaded in...
Hi,After using IC 6.1.7 version, simulation(tran) is usually stopped when the output waveform is appended or re-loaded while the virtuoso is using the MMSIM license.(simulations run using ADE-L and AMS...
View Articleignore instance by layout extraction
Hello,I use the iprobe that break the feedback loop of the amplifier in my design to perform the stability analyses,Now I am doing the layout, but don't know how to make the iprobe ignored by the...
View ArticleBack annotate the extracted parasatics from layout to schematic
Hello,After performing the layout exctraction step, the parasatice elements I can see it on the cell of the extracted view,These elements are distributed everywhere and it is difficult to debug the...
View ArticleUsing a variable in mtline
Hi,I am trying to sweep the length and the width of the "mtline" cell. Apparently, this cell allows for values only and does not accept variables. Any way around this?Specifically, I am using the...
View ArticleClik here to view.
How to add a mark at a coordinate?
Is it possible to add a mark * (like mouseAddPt()) at coordinate when enter the coordinate at the same time? Regards. Molly
View Articleit work if i downclock it to 2666mhz through bios?
If I have the previledge to buy a cheaper 3000mhz ram over a more expensive 2666mhz(the fastest speed of cpu support) both same size 16gb, will it work if i downclock it to 2666mhz through bios? Or...
View ArticleThe generated datasheet is (almost) empty
I posted the same issue here before using 6.1.8.Now I am still having the same problem, i.e., almost empty datasheet, in 6.1.8.The generated datasheet (xml file) only contains the list of model files.I...
View ArticleClik here to view.
Flatten version of a circuit shows different (DC) simulation result
I am simulating a circuit similar to the one shown below.The right circuit is the flatten version of the left circuit.I was expecting the same result because those two circuit should be equivalent.The...
View ArticleEvaluating root mean square over transient noise iterations in parallel
I'm converting my serial transient noise run to parallel by setting the noise seed as a parameter. My original expression isrms((value(VT("/vOut") 7.8e-06) - average(value(VT("/vOut") 7.8e-06))))For...
View ArticleClik here to view.
calibre performs PEX, rnpo resistance reports "*Error* evalstring: argument...
I'm learning cadence recently, and I'm using the smic55ll_ulp_rf_09121825_oa_cds_v1.16_0 process library.I built an operational amplifier, drew the layout, and passed the DRC inspection and LVS...
View Articleassembly error when use calcval function
I have two simulation : the first one TEST_MODE1_OSC_MEAS provides the RCAL and ICAL , the seconds one uses such command to run simulation:calcVal("ICAL" "TEST_MODE1_OSC_MEAS")calcVal("RCAL"...
View ArticleWhich file does store values returned from calculator value function in ADE...
After the completion of my transient Monte Carlo runs, ADE XL got struck & forced me to quit Virtuoso. I believe MC sim hasn't been saved , couldn't find it under ADE history even though...
View Articlehow to check/set viva maxthread
I see a note in the cadence internal support about Zoom-In operation in ViVA increases memory usagethe below command is given to limit viva maxthreads, when I run this command, a new virtuoso session...
View Articlesynchronous clones and permute pins.
Permute pins doesn't seem to work with the synchronous clone function. My clone copy transistors failed to permute, so I loaded up the layout RAK and saw the same issue. Is this the correct behavior?
View ArticleClik here to view.
How can I debug pre-run script and monitor it when it is running?
I am trying to do calibration using pre-run script.The code below does not work which is kind of expected because I am still trying to figure this out. Is it possible to monitor the calibration when...
View ArticleClik here to view.
Exporting statistical corner to different test of the same circuit
Hello,I have determined a statistical corner from worst-case result I have got for the offset voltage from the DC simulation. I have saved the corner in CSV formI have another test for the offset based...
View ArticleHow to measure dynamic power consumption and static power consumption separately
Hi everyone, I am running transient simulations to observe how a full adder circuit responds to input glitches. And I want to analyze dynamic power consumption distribution, as well as how it relates...
View ArticleCreating a string expression in ADEL (or explorer) output section
Hi,It is probably a simple solution to what I have in mind here, but somehow I can't figure out how to do it.Say, I have a bunch of expressions defined in ADEL and the results of those are in the...
View Article