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
Xilinx ISE 10.1 SP3 MPMC NPI VHDL simple sample needed
Started by ●December 10, 2008
Reply by ●December 11, 20082008-12-11
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
Reply by ●December 11, 20082008-12-11
Reply by ●December 12, 20082008-12-12
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