Building a SDRAM controller

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originally posted by zaphod@Oct 18 2006, 12:15 PM

hi.....im quite new to the altera de2 board, and i have a very fundamental question. lets say i wanted to build hardware that does y = (a+http://forum.niosforum.com/work2/style_emoticons/<#emo_dir#>/cool.gif *c where a is my input and b and c are prestored values in the sdram. the final output y also goes to the sdram.

a)how do i build a sdram controller that i can integrate with my verilog code (for the above function)? all the tutorials keep talking about using c or assembly to do the function which i dont want to do.

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I don&#39;t think you want to build your own SDRAM controller. You want to write your own Avalon component (presumably a master) that does this. Or, you could just use C2H and let it do the job for you.

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originally posted by zaphod@Oct 18 2006, 12:15 PM

http://forum.niosforum.com/work2/style_emoticons/<#emo_dir#>/cool.gif how do i use the burst modes in these?

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If you&#39;re using the Altera-provided SDRAM controller, I don&#39;t think enabling burst will help you. The Microtronix SDRAM controller does support bursting....so you might want to have a look at that. For a sample of an Avalon master (that supports bursting), you could take a look at the provided Avalon DMA controller.

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originally posted by zaphod@Oct 18 2006, 12:15 PM

sorry if this seems trivial and thanks for the help in advance. http://forum.niosforum.com/work2/style_emoticons/<#emo_dir#>/smile.gif

-zaphod

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Best Regards,

- slacker