ncvhdl problem

Hi,

i have the following problem & appreciate any hints on this.

i used ncverilog all the time before. There, it was possible to use
system tasks($recordvar) within the testbench to write out *trn & *dsn
files which you one can use later with signalscan for debugging signal
waveforms.

Now i have to use vhdl and ncvhdl. Is it true that above method is not
possible for vhdl testbenchs.
How can i generate *trn *dsn. files with vhdl. Whats the most straight
and sophisticated way to do this. I don't want to use nclaunch nor
interactive ncsim tcl shell. I want to run the ncsim and later if
needed check the waveforms.

Another question:

would it work if i write a verilog testbench and instantiate vhdl top
level and use verilog system tasks to generate waveform files? What
are the command line then to compile&elab and invoke the
simulator(ncsim) ?


many thanks!!
Metin

Metin Yerlikaya

Hi,
Use TCL in batch mode, you don't need to do it interactively, try the
following tcl file:

-- tcl file

database -open waves -shm -default
probe -shm -all -depth all top
run
exit
----

Use it with ncsim -input dump.tcl <other options>

HTH,
Ajeetha
http://www.noveldv.com
Metin Yerlikaya wrote:
> Hi,
>
> i have the following problem & appreciate any hints on this.
>
> i used ncverilog all the time before. There, it was possible to use
> system tasks($recordvar) within the testbench to write out *trn &
*dsn
> files which you one can use later with signalscan for debugging
signal
> waveforms.
>
> Now i have to use vhdl and ncvhdl. Is it true that above method is
not
> possible for vhdl testbenchs.
> How can i generate *trn *dsn. files with vhdl. Whats the most
straight
> and sophisticated way to do this. I don't want to use nclaunch nor
> interactive ncsim tcl shell. I want to run the ncsim and later if
> needed check the waveforms.
>
> Another question:
>
> would it work if i write a verilog testbench and instantiate vhdl top
> level and use verilog system tasks to generate waveform files? What
> are the command line then to compile&elab and invoke the
> simulator(ncsim) ?
>
>
> many thanks!!
> Metin

Ajeetha