Simulation error

Hi, guys
Tried to run some simulation and errors kept showing up. For example, in /design/sys/iop/ctu/rtl/ctu_clsp_pllcnt.v, line 298
always @(/*AUTOSENSE*/ `RSTSM_FREQ_CHG or `RSTSM_PLL_LCK
ncverilog keeps complaining about this. I am new to verilog, but the above statement does looks suspecious. It's weird to put a defined constant value in a always statement.

Hi Guys,
I also encountered simulation problem while using ncv version 5.4. NCV coredump on always statement or initial statement. Please help!
ncverilog: 05.40-p004: (c) Copyright 1995-2004 Cadence Design Systems, Inc.
ncsim: 05.40-p004: (c) Copyright 1995-2004 Cadence Design Systems, Inc.
=== OpenSPARC T1 PLI Version 1.0 ===
Copyright (c) 2001-2006 Sun Microsystems, Inc. All rights reserved.
Loading snapshot worklib.core1:v .................... Done
ncsim> source /tools/eda/cadence/ldv/tools/inca/files/ncsimrc
ncsim> run
ncsim: internal (rts_seghandler - SIGSEGV unexpected violation pc=0x498f9e8 addr=0x1d000000
Always stmt (file: /export/home/nzhang/OpenSPARCT1/design/sys/iop/ctu/rtl/ctu_clsp_clkgn_1div.v, line: 215 in worklib.ctu_clsp
clkgn1div [module])).
Please contact Cadence Design Systems about this problem
and provide enough information to help us reproduce it.
ncverilog: *E,SIMERR: Error during Simulation (Core Dumped), exiting.

Similar Messages

Constant Simulation Errors

Hey everyone
I have been trying to make a rather simple relay control timing circuit and I keep running into errors when I flip the trigger swithch. I get a simulation error that wants me to run a convergence check. When I run the check, it will not find anything. Even when simulating just a part of the circuit, or removing components in case it is a Spice error, I still get this error coming back. It only stops when I turn off the 5v supply. I then tried to provide a seperate 5v supply, but the error comes back. Anyone have ideas what is going on? I ran an electrical check and the errors it gives me do not make sense for the components I am using.
The circuit is attached.
Thanks
Attachments:
CircDesignLEEFI.ms12 ‏225 KB

Hi,
You can go to Simulate -> Interactive Simulation Settings. Change the Intial conditions drop down menu to "Set to zero". Then run the simulation. It does not seem to be giving an error after this. Check the output of your circuit to make sure if you are seeing what you expect.
Hope this helps.
Regards,
Tayyab R,
National Instruments.

Long simulation errors

Hi,
I have some long simulations to run and to get realistic resuilts I need to keep the timestep small.
I am getting simulation failures with 'internal simulation error'.
If I remove some variables it can go longer.
After the failure if I open the grapher it tries to graph the data but halts and restarts every 6-8 seconds and starts over -forever. Each try it is able to plot some varying amount of the data. The data is very good with the small timestep as opposed to longer timesteps, but it does not seem MS12 can handle the amoun tof data.
What are the limitations? How many samples of how many variables can I accumulate and still have the simulation and grapher work?
Thanks.

I tried the recorder, but is seems to only take up to four signals. It also hangs MS after closing the configuration panel.
I have had better luck just saving a segment of the data I want. i.e. I run a 50msec simulation but the first 40 msec is start up activity. I tell MS to simulate 40-45 msec, and though it simulates the full interval it only stores the segment of data requested. The grapher can then handle that. At least it could until I tried to turn on sample display. Then it never recovered and I had to kill MS and lost my overnight simulation data. :-(
The fine timestep simulation data is vastly more accurate than default timesteps or other values suggested in the forums.
I should think there should be a simulation option that forces finer timesteps when signals are active and stretches them out when static. If I just set the simulation tolerances tighter does this do that?
Thanks,
David B

Multisim simulation error

I am encountering an error while simulating AD636, ADG407 and AD623. I even tried to use ADI Multisim AD Edition but still receiving the same type of error. These multisim symbols are downloaded from Analog Devices website.
I have provided the following links to gain access to the error log files and screen capture of the circuit.
AD636 simulation error, multisim failed to resolve the problem using convergence assistant:
http://www.engineers.auckland.ac.nz/~htar006/error/ad636/capture.jpg
http://www.engineers.auckland.ac.nz/~htar006/error/ad636/Circuit2.ms10
http://www.engineers.auckland.ac.nz/~htar006/error/ad636/simulation_log_file.log
ADG407 simulation error, also multisim failed to resolve the problem using convergence assistant:
http://www.engineers.auckland.ac.nz/~htar006/error/adg407/capture.jpg
http://www.engineers.auckland.ac.nz/~htar006/error/adg407/Circuit1.ms10
http://www.engineers.auckland.ac.nz/~htar006/error/adg407/simulation_log.log
AD626 output is clipped operating in single supply mode and biased in the middle of the supply voltage:
http://www.engineers.auckland.ac.nz/~htar006/error/ad626/capture.jpg
http://www.engineers.auckland.ac.nz/~htar006/error/ad626/Circuit4.ms10
and for the AD623
http://www.engineers.auckland.ac.nz/~htar006/error/ad623/capture.jpg
http://www.engineers.auckland.ac.nz/~htar006/error/ad623/Circuit6.ms10
http://www.engineers.auckland.ac.nz/~htar006/error/ad623/simulation_log.log
I hope anyone can help me clear out the problem.
Regards,
Harold
Attachments:
error.zip ‏993 KB

Hi Harold,
Circuit 2
Please use the attached model. The sqrt function is causing a problem with the current SPICE engine, you can replace sqrt with pwr () function and the model should behave the same.
Circuit 1.
You need to add a semi colon to indicate comment on the line shown below. Double click on the component and select Edit Model
R_VB_C 422 500 1E6 components on these nodes
Circuit 4.
I believe this is a model issue. There are many models that were not designed to work single power supply and I believe is the case here.
Circuit 6.
I ran the circuit in ADI edition and also 10.0.1 and was not able to replicate the simulation error.
Tien P.
National Instruments
Attachments:
AD636.txt ‏4 KB

Capacitor simulation error

Hi; I Have an problem;
When simulating "time step too small " often occurs; After Using Convergence Assistant; I can simulate but the output of XSC1 is not corrent , It include direct flow,
The capacitor C1 not filter dirent flow. and in "alteractive simulation settings" ->"initial conditions" is changed from "Automatically ..." to "user defined"
If I change from "user defined " to "Automatically ...", when simulating the simulation error dialog occurs. the multisim version is 10.0

Avoid re-build the circuit map, I post the circuit map directly.
summarize: "interactive simulation settings" -> "set to zero"     result:     output have direct flow.
                    "interactive simulation settings" -> "user define"     result:     output have direct flow.
                    "interactive simulation settings" -> "DC operating ..."     result:     simulation error occurs: time step too small
                    "interactive simulation settings" -> "Automatically ..."     result:     simulation error occurs: time step too small
Would you like to explain the role of "time step" in multisim?
Thank you!
Attachments:
bjt_time_too_small.zip ‏68 KB

How to solve simulation error

Hi,
I am new out here,so need your help with a few things.
I am continuously getting a simulation error with almost every circuit i am implementing. It runs the convergence assistant but it couldn't reproduce the error for any of my circuits so didn't help.
Is there any tutorial available or any website which helps out on how to design to remove such errors or steps to rectify them ?
regards,
S!D

Hi S!D;
Since you don't give much information on the error you're obtaining I can think of two common issues, the first one is that Multisim is searching for an unexisting folder and the second one is an issue regarding the power inputs of your circuits. I attach two links to documents that can help you solve either one of the issues I mentioned, but if you get a different error from the ones I've told you, could you send more information regarding the error you obtain?
http://digital.ni.com/public.nsf/allkb/221393F998C08491862571ED0077FCC3?OpenDocument
http://digital.ni.com/public.nsf/allkb/15526EB2464F3EDD8625722C00696BB0?OpenDocument
Hope the information is useful.
Good luck
Francisco Arellano
National Instruments Mexico
Field Systems Engineer - Energy Segment
www.ni.com/soporte

Trip simulation error in WD ABAP

Hi SDNers,
We are using WD ABAP based travel management via ESS/MSS with EP 7.0 ECC 6.0 EhP4 landscape.
We are trying to raise a travel request for various employees (pernrs), it gives the following error message.
Trip can not be saved due to errors in simulation Display Help
Entry not found in table T706V. Argument: SCP AIN 1A 0031620100419
We have maintained cost cetre details in Infotype 17, 27, 0001, maintianed the entries in above view (V_T706V) for India country gruping.
Still gives the same error messages for various employees.
However, the trip is successfully recorded in trip, pr05 tcodes.
Please suggest the way forward, we are stcuk with this issue from past two days.
Regards,
Anil Kumar

V_T706V is the perdiem table. Make sure that you have configured properly in this table.

Vendor & customer invoice posting.....while simulating -- error ?...

Dear,
   While posting vendor and customer Invoice----
      When Invoice date and posting date has given as xx.xx.xxxx with fiscal year xx.xx.xxxx while simulating - the error message saying that "posting takes place in the previous fiscal year". When i wanted to overwrite the error message
it is telling that --in company code number range 19 is missing for the fiscal year. For the customer the number range 21 is missing. I gave the number ranges while creating vendors and customers accounts. As the document types are already given in default. I haven't changed them.
   As such invoice postings is not saved.
Pls help me out in this regard.
Thanks in advance
regards
Jyothsna Singh

Hi....
The error pertains to maintaining accounting doc number ranges.
Go to T.code FBN1-- Give company codeselect change intervals buttonCreate number ranges14,16 and 18 for customers and 15,17 and 19 and 21 (21 if required) for the fiscal year.
Save data.
Post the doc
Assign points if helpful
Regards
Aravind
Message was edited by:
        A.Aravind

Simulation error in ERM

Hi Experts,
We are on GRC AC 5.3 and ERM patch level is: 7_0
I was simulating a role from change view-> Risk Analysis-> simulate-> iclude users-> yes-> clicked on simualte.
In configuratio->background jobs, the job status is showing as completed. when drilling down inside in Job history it is showing the message at step 3 that: Error in backend system/Web service; Name or password is incorrect (repeat logon).
In Simulation option in the risk analysis also it is showing no logs.
FYI, Both Adopters and connectors are working fine. I am stuck in between
Could any one please tell me, how to resolve the error?
Regards,
Gurugobinda

Hi Alpesh,
Thank you very much for analyzing the issue and suggesting me the closest solution.
I am also feeling the same.
Hi Satyabrata,
Thanks a lot for your response.
Regards,
Gurugobinda

Billing simulation error

Hello Experts,
While doing billing simulation (T.code EA00) ,I am getting error.
Error:- An internal error has occurred in form modify_iger_from_idevnum in function module isu_installation_struc_analyze. This is probably a programming error which you cannot resolve.
In installation there is change in device .The old device has meter reading(MR) with MR reason 22 and new device has MR reason 21 and MR took on different dates.
I couldn't see functional solution for this error.Is debugging is only option for this error?
Please help me out.
Thanks in advance.
Shabnum

Hello, a hint...this error is usualy cased by data base inconsistency in the table EASTL.
You may have to make manual changes here.......?
I hope this helps.
Regards
Olivia

IOS 6.0 simulator error / Flex+AIR 3.5

I am not able to run a Flex/AIR program on the IOS 6.0 simulator. I searched all forums. I am new to using IOS simulator. Any help is appreciated.
I am using Flex 4.6 and AIR 3.5, with target swf version 18. A simple Flex app (WindowedApplication with a Label in it) crashes at initialization in IOS simulator.
<?xml version="1.0"?>
<s:WindowedApplication
xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:mx="library://ns.adobe.com/flex/mx"
xmlns:s="library://ns.adobe.com/flex/spark">
<s:Label text="Test"/>
</s:WindowedApplication>
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at spark.components::WindowedApplication/initialize()
at ptest/initialize()
at mx.managers.systemClasses::ChildManager/childAdded()
at mx.managers.systemClasses::ChildManager/initializeTopLevelWindow()
at mx.managers::SystemManager/initializeTopLevelWindow()
at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::kickOff() at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::preloader_completeHandler()
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.preloaders::Preloader/timerHandler()

Update: the problem was resolved by changing WindowedApplication to Application.
Is WindowedApplication not allowed for IOS/mobile ? I couldn't find any doc on this.

Client copy simulation errors

Hi Gurus
i have created a client with sap_all profile from 000 client to my target system. and i run sccl for simulation then this following error came, what could be the reason?
can i proceed to actual copy.....?
thanks in advance..
Error: Table /1FB/MD___B40001 error in DDIC - Check table with SE14
The data object could not be created: The type /1F B/MD___B40001 does not exist.

Goto to SE14>enter the table name>edit-->click on Activate and adjust the database
n then try again.
Reward points if it solves ur problem.

Simulation error : size mismatch in mixed language port association with VIVADO simulator

Hi,
I have instantiated a VHDL module in a verilog top file . When I tried to simulate the verilog top , I received the following error .
ERROR : Size mismatch in mixed language port association , vhdl port vid_data
(Simulation tool : VIVADO simulator . VIVADO ver : 2015.1)
// Following is the instantiation of VHDL module in verilog top file
VPS VPS_inst
.clk (VPS_clk),
.reset_n(~user_reset),
.vid_active_video(data_valid),
.vid_data(data_to_mem)
The port 'vid_data' is declared in the VHDL module as std_logic_vector (15 downto 0)
"vid_data : out std_logic_vector(15 downto 0)"
'data_to_mem' is declared in verilog top file as "wire [15:0] data_to_mem" .
No size mismatch exists actually . But , I am getting the above mentioned error in simulation.
I have searched for similar threads . Nothing was useful .
Does anyone know how to solve this?
Thanks and Regards
Raisa

You might also get this error if you mis-spelled "data_to_mem" such that the declaration did not match the instantiation port map. For example:
wire [15:0] data__to_mem; // double underscore before "to"
VPS VPS_inst
.clk (VPS_clk),
.reset_n(~user_reset),
.vid_active_video(data_valid),
.vid_data(data_to_mem) // only one underscore before "to"
In Verilog this is not an error unless you disable automatic net inference. In this case Verilog is happy to create a single wire for data_to_mem, but then you would be trying to attach a 1-bit wire to a 16-bit port. That would also be valid in Verilog, but not allowed for connections to VHDL.
I typically avoid this sort of error by placing:
`default_nettype none
at the top of each Verilog file, and
`default_nettype wire
at the bottom of each Verilog file. This prevents the automatic creation of wires when you mis-spell or forget to declare nets.

Configuration Simulation Error

Has anyone encountered the error below while simulation, It is not throwing 403 error.
HTTP connection to ABAP Runtime failed.
Error: Unexpected end of file from server
URL: http://<hostname>:8000/sap/xi/simulation?sap-client=800 User: PIDIRUSER

Check the SM59 HTTP connection and user defined there is not locked.
VJ

Xcode IOS Simulator Error

I'm currently using Xcode 3.2.6 on Snow Leoperd. I downloaded everything sucessfully, and it worked great for a couple of hours. Than all of a sudden I try to test a iPhone application in IOS Simulator, (I hit "build and run") and in Xcode I get a message saying "Error from debugger. Failed to launch simulator. Operation Failure with underlying error (enter some random error number here)" My question is how can I fix, and or reinstall THE IOS SIMULATOR. I am not willing to reinstall Xcode 3.2.6 and any other software for 8+ hours just to fix a single issue. Also I get this pop-up box in IOS Simulator when I open it seperatly from Xcode saying something like "The IOS Simulator has to be relaunched " Any ideas would be helpful.

This is a USER forum. You need to discuss this on the DEVELOPER forum.

GTX IP core simulation error IS_*_INVERTED

Please see the below -
I've upgraded to vivado 2015.1 and GTwizard core v 3.5
and still get the below error when using _funcsim.v or .vhd , only work around is to use the verilog and comment stuff out...
http://forums.xilinx.com/t5/Simulation-and-Verification/1000BASE-X-PCS-PMA-or-SGMII-v14-2-funcsim-won-t-simulated-IS/m-p/589975#M12690
Loading unisims_ver.GTXE2_CHANNEL
# ** Error: (vsim-3584) ..xxxxxx/gtwizard_gtx_sfp_funcsim.v(958): Module parameter 'IS_CPLLLOCKDETCLK_INVERTED' not found for override.
... and many others like this for each IS_**_INVERTED term in the funcsim file......

fyi - if attempting to simulate without the funcsim but compile source code directly I get similar error which I don't have a work around for:
# Loading work.gtwizard_gtx_sfp_multi_gt(rtl)
# Refreshing ...../sim/work.gtwizard_gtx_sfp_gt(rtl)
# Loading work.gtwizard_gtx_sfp_gt(rtl)
# Loading unisim.gtxe2_channel(gtxe2_channel_v)
# ** Error: (vsim-3733) ../ip/gtwizard_gtx_sfp/gtwizard_gtx_sfp_gt.vhd(821): No default binding for component instance 'gtxe2_i'.
#    The following component generics are not on the entity:
#           IS_TXUSRCLK_INVERTED
#           IS_TXUSRCLK2_INVERTED
#           IS_TXPHDLYTSTCLK_INVERTED
#           IS_RXUSRCLK_INVERTED
#           IS_RXUSRCLK2_INVERTED
#           IS_GTGREFCLK_INVERTED
#           IS_DRPCLK_INVERTED
#           IS_CPLLLOCKDETCLK_INVERTED
#         Region: /tb_rlp_transition/dut/gtwizard_gtx_sfp_i/U0/gtwizard_gtx_sfp_i/gt0_gtwizard_gtx_sfp_i/gtxe2_i
# Loading secureip.GTXE2_CHANNEL_WRAP
# Refreshing ............../sim/work.gtwizard_gtx_sfp_cpll_railing(rtl)
# Loading work.gtwizard_gtx_sfp_cpll_railing(rtl)
thanks!

Simulation error

Similar Messages

Maybe you are looking for