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78 Threads found on Encounter Virtuoso
I generated a physical verliog netlist for my design in encounter using "saveNetlist design.v -phys -includePowerGround -includePhysicalInst". Here is the explanation of every attribute in this command: -phys: Writes out physical cell instances, and inserts power and ground nets in the netlist. This is used for LVS and for designs with multiple
There is possible to make automatic routing in Layout XL but it is not as effective as routing in encounter (especially for standard cells). The question is a circuit size - how many cells you have to route.
The exported map file from encounter is wrong, so how to modify it to be able to get the correct layers in virtuoso ? Here is file from encounter: metal1 NET 1 0 metal1 SPNET 2 0 metal1 PIN 3 0 metal1 LEFPIN 4 0 metal1 FILL 5 0 metal1 FILLOPC 6 0 metal1 VIA 7 0 metal1 VIAFILL 8 0 metal1 VIAFI
A netlist (Synthesized RTL) is just a text file - so you can edit it in any text editor, including virtuoso's. No, you can simulate a layout directly. You need to either extract a netlist from the layout using an extraction tool (or just export the corrsponding netlist from encounter - although that wont have parasitics)
I want to export my design from encounter to virtuoso given that I don't have the map file. So how can I transfer the layout ? and what are the difference between GDSII, DEF and OA ? You can let encounter generate a map file for you, it will be wrong, but you can then open the file and modify it by hand. You just need
I tried importing my layout (was generated in SoC encounter) in virtuoso using DEF file and I attached the std cell library and tech. file. The imported layout in virtuoso have the same std cells and routing but the layers have something wrong. When I first imported DEF file, I had these errors in the attached photo 136594[/AT
I'm trying to open my GDS layout in virtuoso after exporting it from SoC encounter. In the export I merged the GDS files of all std cells as well as the map file. When I streamIn in virtuoso, I attach the std cell library which was used in encounter. Then I get the complete design in virtuoso but in (...)
Hello, I have a layout design in SoC encounter to which I want to add manually some extra wires to the layout (these are EXTRA and don't have anything to do with the design netlist) and modify the gap between another some wires (to measure coupling capacitance and crosstalk effects between wires). I'm using NanGate 45nm Open Cell Library.
Hi can anyone please explain me the steps to obtain the tape-out file once the layout design is complete. I know the final file to be taped-out will be in .gds format. Can i obtain this gds file from encounter tool or am i supposed to export it to Cadence virtuoso and then do the tape-out by following the steps as shown in this link
Hi doing analog layouts in cadence virtuoso i was able to find a library (read only) file which i used as pins which was arranged around the layout design. But for a digital design in encounter how do we place the pins around the core? Do we have any technology file provided by the foundry which we can use or do we manually build a pads and save th
basically there are two models,1, AOT(analog on top),make digital as a block,after gds export gds from Encouter and strem gds in the virtuoso,and then connect lines manually.2 DOP(digital on top) abstract the analog blocks'lef ,send them to encounter,and then pr,then merge the gds.
hi everyone, this is my current situation. I need to do pnr but the .lib files are not available. So I try import DEF file, which is export from virtuoso, to encounter but I've faced some problems like these: _ when I imported the DEF file to encounter, these kind of warning occur and the encounter layout contains (...)
Hi, I need to generate LEF file from cadence without using encounter. Would you please let me know which file I should set for lefout.list? Thanks
Hi, I am working on a standard cell library designed by me using Cadence virtuoso. I am using Spectre for netlist generation. Now I am trying to characterize the library using encounter Library Characterizer(ELC). But I am not able to move ahead. It stars with the database 1st. in the command file, I am using the following command. db_
Hi, We are using encounter Digital Implementation system 13.10. The technology library we are using is NCSU_TechLib_ami06 and the standard cell library is IIT_stdcells_ami05. While exporting the design from encounter to virtuoso we are facing some problems. I tried to export the design to the virtuoso using 3 different (...)
First Hey All I have done a design in it's schematic and layout and get the area and write lef file to presented to dc compiler to integrate with encounter layout , My question is about the timing of this design how to present time to dc compiler and encounter to make STA analysis to this new lef file Second how to make post place and ro
To accelerate design, I used following commands for multiple CPU processing command in Cadence encounter APR tcl file: " setMultiCpuUsage -acquireLicense 8 -localCpu max" It seems working fine. For Cadence virtuoso Calibre DRC/LVS, may I use similar tricks to make it run faster? It's pretty slow for a large design. Also, is there a way
Hello, I installed virtuoso 6.14 and worked fine, and now I go on installing SOC encounter 62 But when start to run command "encounter", the following error: This version requires license using cdslmd daemon Checking out encounter license ... Fail to find any encounter license... Please check your (...)
The Cadence SOC encounter is targeted for RTL to GDSII flow where you start your design with HDLs/SystemC and synthesize to generate/simulate gate level netlist, do auto place & route, to DFM and generate GDSII. This flow always has presence of standard cells to enable all the stuff. The virtuoso on other hand is targeted for custom design (mainly
Only for a handful of cells.. Look at Cadence VDI, which gives access to RTL Compiler/encounter

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