Need a SD Card demonstration in NIOS II

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originally posted by hippo+jul 12 2006, 10:55 am--><div class='quotetop'>quote (hippo @ jul 12 2006, 10:55 am)</div>

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<!--quotebegin-william88@Jul 11 2006, 10:54 PM

hello,everyone

in the de2_sd_card_audio project, the designs uses a nios ii system to demonstrate how to read from the sd card.but the software in nios ii has not involved to the file memory operation,only has realized the signal succession.now i am making a topic about the video gathering and return back,needs the video which gathers to save to the sd card ,and reads out the video from it. i did not know how to edit the code about sd card , who has sd card examples?

thanks!

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what you need is a file system, may be fat? see this thread,

http://forum.niosforum.com/forum/index.php?showtopic=4233 (http://forum.niosforum.com/forum/index.php?showtopic=4233)

or you may try uclinux, there are good file system support. Jdhar had ported a SD driver, and you may port it to your board.

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hello!hippo

i&#39;m going to write a program to write some dato into my sd card by de2, i found it&#39;s not a small project to use most of the useage of a sd card, i haven&#39;t managed to meet the basic write operation yet, is there some already-exist examples for this project?

my board is de2, and my sd card is made by sandisk.