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Comp.Arch.FPGA | ML310 xirtex II pro development board: HOW TO WRITE onto the DDR DIMM?

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ML310 xirtex II pro development board: HOW TO WRITE onto the DDR DIMM? - ViKi - 2005-04-08 15:39:00

Hi,

I am trying to work with ML310 virtex II pro development board and I have
pretty much stuck with the basic stuff, Can someone please tell me:
1- How many way one can load an image into the DDR DIMM? is this correct
that all accesses to the external memory (the DDR DIMM) have to go through
the PPC? if not, what are my options?

2- Ideally I would like to read the images from a camera and store them onto
the ddr dimm, what's the best way to do that?

I greatly appreciate any help,
thanks,
viki



Re: ML310 xirtex II pro development board: HOW TO WRITE onto the DDR DIMM? - beeraka@gmail.com - 2005-04-09 00:35:00

Hi,
     You can load the DDR with whatever u want by just specifying the
address of the DDR which is nothing but 0x00000000 So u can just say

addr = 0x0000000;
*addr = 0x01;

   So this loads "1" to 0x0000000 address location..But if ur Hardware
has to access the DDR then u need to be a Bus Master (so that u can
grab control of the bus and do whatever u want )...and for this  u need
not go through PPC...
   So I guess this answers ur question 

 --
 Parag Beeraka