Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

[SOLVED] RTL errors while portling simulation tools

Status
Not open for further replies.
dpaul

dpaul

Advanced Member level 5
Joined
Jan 16, 2008
Messages
1,799
Helped
317
Reputation
635
Reaction score
342
Trophy points
1,373
Location
Germany
Activity points
13,070
Hi all,

I would like to keep it simple & would provide details as needed by expanding the thread.

Background: There is an existing legacy uP RTL code which simulates perfectly well with VCS Synopsys. Now I need to use that legacy code to simulate the uP core using ModelSim (it is impossible for me to use VCS, I don't have access to it).

RTL language is Verilog + SystemVerilog

While simulating in ModelSim I am getting error messages.

How do I go about solving this problem?

Thanks.
 

Um, maybe read the error messages? Don't they tell you what the problem is?

I realize you don't want to provide too much detail, but you don't provide ANY!!

What kind of errors? Multiple drivers? Missing library? Segment fault? Your question is a bit too vague.
 

Sorry for that, I want to give out the details as needed so as to avoid confusion.

I get the following error message from many module level *.sv design files.
** Error: (vsim-3906) : Enum types must match.

Why is this not reported by VCS for other users?
I am should be using legacy code and not supposed to change the RTL files. But now these simulation time errors are limiting me.
I am using ModelSim SE-64 10.2b for simu using the -novopt switch.
 

Is it asking too much that you examplarily track down the error message to the related code, at least in a single case?
 

Are you enabling the -sv switch in modelsim?
 

ok, so now I am using Synopsys VCS-MX and none of the errors appears!

Just for information to others:
VCS passed where ISIM(Vivado) and ModelSim had both failed.

This leads me to the conclusion that all SV constructs are not handled by all tools.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top