how to suppress warning in modelsim

modelsim suppress warnings

how to suppress the warning message in modelsim

# ** Warning: There is an 'U'|'X'|'W'|'Z'|'-' in an arithmetic operand, the result will be 'X'(es).
# Time: 1211550 ps Iteration: 1 Instance: /tb/tmp4/mot/mtc0/ad21

I tried to suppress them at simulationOptions\Suppress warnings by
ˇ　from synopsys package
ˇ from IEEE numeric std packages
but failed,

how to do that?

modelsim disable warning

hello.

solution 1 - editing MODELSIM initialisation file
----------
go to Modelsim installation, then you should find "modelsim.ini" under the
path <install_path>. First, to edit this file, you need to make it write enable; turn remove the READ-only protection.

; Turn off warnings from the std_logic_arith, std_logic_unsigned
; and std_logic_signed packages.
StdArithNoWarnings = 1 [removing the semicolon]; Turn off warnings from the IEEE numeric_std and numeric_bit packages.
NumericStdNoWarnings = 1 [removing the semicolon]

Save the file and make it READ-only.


solution 2- using ModelSIM TCL variable
----------
Assuming that you are working the batch/TCL command driven in the GUI mode, after you execute the "vsim" command

type: (this is TCL command)

set StdArithNoWarnings 1
set NumericStdNoWarnings 1

then, type
run -all (or similar)

solution 3- using ModelSIM GUI menu
----------
Assuming that you are working the GUI interactive, after you execute the "vsim" command

halt the simulation using break command

Go to ModelSIM menu, click on Simulate -> SIMULATION options ->

Check on
StdArithNoWarnings Disable
NumericStdNoWarnings Disable

Continue to run your simulation

then, type
run -all (or similar)


solution 4- VHDL recoding
----------

Always initialisation all variables/signals used to known logic state.

suppress warnings modelsim

I got a mpf project file, so I remove the mark of the StdArith....
in mpf file & found that works,
If you don't have built a mpf file, then modified .ini file will work.

You must be a veteran!