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Encounter to Virtuoso

 Hi all, It is my first time on this forum so please may apologize  my lack of knowledge in some matter.I'll put my problem in context:We are designing a mixed-signal project in technology tsmc65nm. I...

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Difference between net and hNets in db commands

Hi,A) What is the difference between the below two statements 1. set a1 [dbGet top.nets.name]2. set a2 [dbGet top.hInst.hnets.name] B) Both 3 and 4 statements priniting the same name (RVXG1), which is...

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Multi point CTS implementation

I have a netlist and def with single clock port clk.I want to implement multi point cts with 4 clocks(clk1,clk2,clk3,clk4).They are equilent to clock port clk.What are the flow steps in encounter to...

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LVS Issue with power

I have got one issue in LVS In my design i have preplaced cell named PowerClamp 4 in number, each cell has different instance name, it has common pin name "VDDESD" "VSSESD" pin "VDDESD" connect to...

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uni-directional routing with EDI

Hi all, I am wondering how to force EDI router to strictly use the uni-directional routing only?  Although the routing directions are already defined in the LEF file, the router still create jogs,...

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error in qrc tech file

 Hi All ,when  I am running qrc in stand alone mode  , I am seeing following error ERROR (EXTSNZTECH-104) : The technology file defines layer active but does not specify theresistance of that layer.As...

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EndOfLine Violations

Hi,   I am working with a set of standard cells that I created myself and am in the process of testing them. When I run verifyGeometry I get EndOf Line violations. A sample is pasted below:EndOfLine:...

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trialRoute, error adjacent routing layers with same direction

 Hi there,i am using Encounter 13.1 and a STM 28FDSOI kit. Floorplanning and prePlace of the design run smoothly but when I try a timeDesign, trialrout exits with the following error:**ERROR:...

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clockRouting, selectNet -allDefClock cannot find any clock

Hi there, as the subject says,  selectNet -allDefClocis not able to find any clock nets:  " **WARN: (ENCSYC-1188):  Cannot select clock net - could not find it." Although, I ran CTS in advance:...

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Encounter cannot find a valid clock net / Timing library is not loaded

In SoC encounter 11.0, after I execute the following command: createClockTreeSpec -output ../CTS/${DESIGN_NAME}_spec.cts \   -bufferList BUFX2 BUFX4 INVX1 INVX2 INVX4 INVX8  It gives me the following...

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How to skip ERROR in cadence encounter13.2

Hi All,When i am source eco file i am getting ERROR.so its stop due to ERROR occur.so is there  any command available in encounter so we can skipp ERROR and run full file without stop anywhere??means...

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verifyconnectivity

After doing the verify connectivity, I am getting the error "dangling wires" . Please guide me how to solve the problem

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rc extraction in encounter

Hi, I'm using encounter for a tape-out. I want to use QRC for higher accuracy. However, I think I need to tell the tool where the executable for QRC is. How do I do that? Modifying PATH variable didn't...

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How to detect the clock glitch ?

Hi,All Now , there are two clock signal in the design, the two clocks and select signal are synchronous, but the phase between them is uncertain, then use the selecting signal 'SEL' to switch the two...

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Algorithm used for implementation of Division

HiWhat is the default algorithm used for hardware implementation of division operation when synthesised using RC Compiler. Like the code below  beginquot[n:0] = divd/dvsr;remi = divd%dvsr;end Thanks in...

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Manual CTS report

Hi everyone,I am currently doing a project mainly focus on clock tree synthesis in Cadence Soc Encounter. As I need  to study different topology of clock trees, I am using the manual mode CTS. What I...

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Manual CTS

Hi,Please give an example to build H-tree CTS in encounter. Thanks,Nitin 

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Printing common elements between 2 collections

Hi, Is there a quick way to print all the common elements between 2 collections. Right now I am doing to usual loop method of comparison. Please let me know if there is an easier/faster way.  Regards, 

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Syntax V93 VHDL

 Hi there, I am building an ip, i tested it on Xilinx FPGA is seems works  now i m testing it on virtuoso cadence and give me this 2 errors, someone can help please 1)...

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Encounter Library Characterizer gate recognition fails

 Dear all,I'm having a problem with the Encounter Library Characterizer tool in the ETS Suite.I'm trying to characterize standard cells, however, I'm having a problem that keeps returning at a lot of...

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