problems with using altera vhdl testbench in ModelSim

Hi all,
I try to convert a file with extension *.vwf (used in Quartus) to btim
or tim one. I tried to use exported (Quartus option) to vht (vhd)
format files in ModelSim Actel Customer version  but with no success.
Could you tell me why ModelSim (Libero Design Flow) doesn't see the
testbench file created in that way (there is'nt any altera libraries in
the code) and propose any solution?

Thanks!
Best regards,
Karl

karollo@o2.pl wrote:

> I try to convert a file with extension *.vwf (used in Quartus) to btim
> or tim one. I tried to use exported (Quartus option) to vht (vhd)
> format files in ModelSim Actel Customer version  but with no success.
> Could you tell me why ModelSim (Libero Design Flow) doesn't see the
> testbench file created in that way (there is'nt any altera libraries in
> the code) and propose any solution?

A simulation testbench written in vhdl
or verilog is portable across vendors.
A waveform based simulation is not.

    -- Mike Treseler

>A simulation testbench written in vhdl
> or verilog is portable across vendors.
> A waveform based simulation is not.
>
>     -- Mike Treseler

Could you explain the difference between extension vht and vhd? Does It
means that I can't  use testbench exporetd from waveform to vht in
Quartus.
ModelSim doesn't see this file. I changed name from tbench.vht to
tbench.vhd but it doesn't work. I have few waveform files and I want to
try export them to another format. I could do that in Waveformer Pro
(Synapticad) but it is only eval version in which I can't even save.

karollo@o2.pl wrote:

> Could you explain the difference between extension vht and vhd?
goggle is your friend:
http://www.google.com/search?q=quartus+vht+file+definition

vhd is vhdl code for modelsim or synthesis

Read some docs.

> Does It
> means that I can't  use testbench exporetd from waveform to vht in
> Quartus.

quartus uses vht for it's simulator. Modelsim doesn't.

> ModelSim doesn't see this file. I changed name from tbench.vht to
> tbench.vhd but it doesn't work. I have few waveform files and I want to
> try export them to another format. I could do that in Waveformer Pro
> (Synapticad) but it is only eval version in which I can't even save.


You have discovered one good reason to learn an HDL.

      -- Mike Treseler