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From: google on 10 Dec 2008 17:39
Hello all,

as a newbe with FPGAs I have no clue how to use the NPI interface of
the MPMC from Xilinx.
I haven't found a really good example.
What I need is a simple module in VHDL which reads and writes the
memory (maybe a simple memory test).

Is there something available ??? Can someone help me out ?

Thanks a lot!

/HB
From: Matthias Alles on 11 Dec 2008 03:43
Hi!

I think that the MPMC documentation is a good starting point here (part
of the EDK). All the signals of the NPI interface are explained here.
Furthermore, timing diagrams show how using it should look like.
I was able to use the interface with this documentation. In Genode we
use the NPI interface to read pixel data from the memory or to clear a
memory region by bursts rather than by software. The code there is not
so easy to understand though, since there is quite a lot of overhead for
the framebuffer controlling (fpga-graphics.org). Another VGA controller
using the NPI is available on opencores.org.

Matthias



google(a)schwarzers.de schrieb:
> Hello all,
>
> as a newbe with FPGAs I have no clue how to use the NPI interface of
> the MPMC from Xilinx.
> I haven't found a really good example.
> What I need is a simple module in VHDL which reads and writes the
> memory (maybe a simple memory test).
>
> Is there something available ??? Can someone help me out ?
>
> Thanks a lot!
>
> /HB
From: hardbreaker on 11 Dec 2008 09:12
Does someone has a mini EDK project with sources for me ?
I would really appreciate it ... :-)
From: ales.gorkic on 12 Dec 2008 04:50
On Dec 11, 3:12 pm, hardbreaker <goo...(a)schwarzers.de> wrote:
> Does someone has a mini EDK project with sources for me ?
> I would really appreciate it ... :-)

Download a Genode FX project http://sourceforge.net/projects/genode-fx/

Cheers,

Ales
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