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Linear regulator operating point over input DC Sweep
Hi all.I'm sweeping the linear regulator input voltage on DC from 0V to maximum expected Vin. However, as the OTA that makes part of LDO is internally supplied by the output voltage, the simulation...
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Running ADE L several times in a day
Dear All,I am designing robust SRAM memory cells for space application. I have to calculate the minimum critical charge that each memory node can tolerate until data flips. I run ADE L several times...
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How get the "eventtime" variable calculated and used in the sampled PAC analysis
Hello.I would like to use the "eventtime" variable in the calculator to perform a certain computation.The "eventtime" variable I am talking about is the PAC sampling time, calculated when a certain...
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hspiceD flat netlisting using -replay
Looking to generate a flat hspiceD or spectre netlist to feed some netlist checking scripts. Flat netlists are much easier to post process with simple scripts. Netlist size not an issue.Currently...
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spectre tran simulation and multithreading
Hi there,Some experience with spectre transient simulatin and multithreding?I've just made some tests , mmsim 15.1.0, but I don't see big difference between 1xcpu and 4xcpu on machines with identical...
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Assura QRC error in batch mode.
Hi all!Could you pls. help me to resolve some issue.When I start Assura QRC form layout view - all works fine, but when I try to start the same in the batch mode, I have following...
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Problem about Changing Simulation Output Format
Hi, I am using AMS to do simulations( virtuoso 6.1.7-64b) , however, I'm used to adopting Waveview as waveform viewer.Because Waveview doesn't support the psf format of spectre, I need to change the...
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Some Calculator Functions in MDL, Using a Variable in MDL
Hello,I am using Virtuoso version IC6.1.7.I would like to implement the following functions of the calculator in an MDL file:- rshift (or any type of time shift)- settlingTime- firstVal- xval- xmin-...
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Spectre: TRAN results slightly differ according to which outputs are saved
Hi! I noticed in the TRAN simulation of a 4GHz clock buffer that the calculated jitter at the output differs slightly depending on which outputs are saved. If I choose to save nothing but the output...
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MDL Autostop Using cross and freq Functions
Hello,I am using Virtuoso version IC6.1.7.I would like to termiante a transient simulation on an event using autostop with MDL option. My circuit is a 5-stage static inverter ring oscillator. I provide...
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nested for loop and fwrite statement
Hi, I have something like this in my verilogafor(i=in_sig_cnt-1;i>=0;i=i-1) begin //rise time for sig @(cross(V(sig[i])-(ref_vdd/2), +1)) begin...
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Warning: ddiAddLibtoOA: Can't access library'Library name" at path "path" in...
I am getting this warning for all the libraries in virtuoso (IC616)Warning: ddiAddLibtoOA: Can't access library'Library name" at path "path" in OA 2.2. OA Exception is: Syntax error in .oalib file of...
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Which simulation type should I use and how ?
Hello everyone,I would like to run simulations just like in these 2 graphics but I dont know how to run it. In my project I have 4 v-bit sources as digital input that provides bit patterns, I also have...
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Input .csv file for ADE L simulation sampling error
The input signal for the simulation that I'm running comes from a .csv file that I generated in matlab. When I generate the file in matlab, the signal looks smooth and has a high resolution. However,...
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Cannot netlist config view of my testbench
I am trying to simulate the config view of a testbench but it is failing at the netlisting step. I am getting the following error in my CIW"ERROR (OSSHNL-512): Failed to generate netlist because...
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ADE XL showing deleted design variables
Hello,I just updated to Cadence Virtuoso IC6.1.8-CAT 37 and when I delete both design variables and global variables from both the schematic and test bench setup in the data view assistance in ADE XL,...
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Cadence schematic showing up all as yellow
While using Cadence version 5.1.0, everything in the schematic window shows up yellow (as shown in picture below). The cadence version I am using is icfb 5.1.0. I am using x2goclient to remotely log in...
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In layout window up and down arrows are not working for scrolling.. What may...
Hi,When I open the layout window If I want to scroll the window up and down arrows are not working. For small scroll also I need to use zoom In and zoom Out. Can you tell me any solution for...
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Importing standard cell area into .lib file automatically.
Hi,I am working on a standard cell design. Once I do the characterization, I am noticing that the cell area = '0'. To avoid this, I am manually calculating the area of my cell and entering into the...
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Viva plot colors change on every iteration during real time tuning
Hi,I am trying to use the real time tuning feature in ADE explorer. However, every time I change the value of a variable, all updated plots have different colors than before. This makes it difficult to...
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