Forums

Xilinx ISE 10.1 SP3 MPMC NPI VHDL simple sample needed

Started by Unknown December 10, 2008
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
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@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
Does someone has a mini EDK project with sources for me ?
I would really appreciate it ... :-)
On Dec 11, 3:12 pm, hardbreaker <goo...@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