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writing data to DDR SDRAM card.

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suddy72

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xup2vp

hi,

I have posted a similar question on here before and got no where.
I am having problems with writing data to a DDR SDRAM card which sits in a 184-pin Dual In-line Memory Module (DIMM) socket on board an XUP Virtex II pro Evaluation board.

I have set the board up so that it reads data on switches and displays the output on LEDS -- SIMPLE. I now want to sample this outputed data ( can use the system clock for now) and store the results in memory. (ie) for 64000 sample. My plan is then to send this data to the PC. But i want to do one step at a time first.

Can anyone guide me through step by step just how i can write this data onto the DDR SDRAM.

Thanks again for all your help.

Stuart Sutherland
 

kishore2k4

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Since you didn't mention anything about a DDR-SDRAM controller, I am assuming you didn't use one. You'll be needing a dram controller to interface with the external DRAM module. XUP2VP comes with a some VGA examples, you can check them for basic understanding.
 

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