Re: [myhdl-list] fxintbv dependency on dspsim

[Christopher F. <chr...@gm...>]

Jan L.

Sorry for any confusion, I had put the fixed_point MyHDL object in the
user and projects space to share with the MyHDL community and others.
I mistakenly had the one testbench  in the examples that used the
"dspsim".  The "dspsim" is another tool that I put together and it
currently isn't available (also renamed to dspsys).  My intention was
only to make the fxintbv available as the "dspsys" is not complete.

The fixed_point package (fxint and fxintbv) can be used with out the
"dspsys" package.  Certain portions of the examples will not be
operational because of the "dspsys" dependency.

I will gladly send you a copy of the latest dspsys but it is in a
primitive state with no documentation and probably lots of bugs.  I
will try and send you a copy later tonight (GMT-6).

Little background on "dspsys" (dspsim) package.  It is a fork of the
"dsptools" provided by
Chris Terman (http://web.mit.edu/6.02/www/s2009/dsptools/index.html).
The signal processing hardware that I was creating with MyHDL in most
cases had similar testbenches.  There would be some set of DSP blocks
that were used to drive the HDL and some set of blocks to capture and
analyze the results.  The dspsys allows a user to simply define a
signal processing system for the testbench and mix high level blocks
and HDL blocks.  It can be used for "golden" model comparisons.  I
converted the dsptools to use the MyHDL simulation engine so that it
can be used to simulate (or run real-time) DSP systems or uses for
mixed simulation with HDL.

.chris

On Wed, Dec 2, 2009 at 4:37 AM, Jan Langer
<jan...@et...> wrote:
> Hi,
> I encountered a problem using the fixed_point library on the myhdl
> website. It tries to find a module called dspsim (fixed_point/fxlib/
> _blocks.py, line 23), which is not found on my system. A google search
> didn't turn up anything useful. What is it and where can I get it?
> Best regards,
> Jan
>
> traceback:
>
> --
> Jan Langer
> (Telefon) +49-371-531-33158 / (PGP) F1B8C1CC
> Schaltkreis- und Systementwurf / TU Chemnitz
>
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