http://forums.leaflabs.com/topic.php?id=74119 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:17:33 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=74119#post-104900 Wed, 13 Nov 2013 20:25:56 +0000 gbulmer 104900@http://forums.leaflabs.com/ <p>pyrohaz - <em>"I feel that if I can understand the workings of the hardware, I can get a better and more efficient final solution!"</em></p> <p>Couldn't you just read the SD library source? </p> http://forums.leaflabs.com/topic.php?id=74119#post-104899 Wed, 13 Nov 2013 18:26:38 +0000 pyrohaz 104899@http://forums.leaflabs.com/ <p>I am really appreciative of the Maple SD library, and I've used it in multiple situations, I was just using it as a kind of teaching task to really understand about how block and sectors on an SD card work, I feel that if I can understand the workings of the hardware, I can get a better and more efficient final solution! </p> http://forums.leaflabs.com/topic.php?id=74119#post-104897 Wed, 13 Nov 2013 13:11:13 +0000 gbulmer 104897@http://forums.leaflabs.com/ <p>pyrohaz - <em>"... so what would be the simplest piece of code to initialize the SD card and access this sector of data?"</em></p> <p>I assume neither:<br /> <a href="http://code.google.com/p/maple-sdfat/source/browse/trunk/maple-sdfat/examples/Arduino%20Examples/SdFatRead/SdFatRead.c" rel="nofollow">http://code.google.com/p/maple-sdfat/source/browse/trunk/maple-sdfat/examples/Arduino%20Examples/SdFatRead/SdFatRead.c</a><br /> nor:<br /> <a href="https://github.com/joeferner/maple-sdfat-gitclone/blob/master/maple-sdfat/examples/Arduino%20Examples/SdFatRead/SdFatRead.c" rel="nofollow">https://github.com/joeferner/maple-sdfat-gitclone/blob/master/maple-sdfat/examples/Arduino%20Examples/SdFatRead/SdFatRead.c</a><br /> nor:<br /> <a href="https://github.com/joeferner/maple-sdfat-gitclone/blob/master/maple-sdfat/examples/FileSys/FileSys.pde" rel="nofollow">https://github.com/joeferner/maple-sdfat-gitclone/blob/master/maple-sdfat/examples/FileSys/FileSys.pde</a><br /> is an adequate place to start.</p> <p>So what are your needs that the library doesn't satisfy? </p> http://forums.leaflabs.com/topic.php?id=74119#post-104887 Tue, 12 Nov 2013 19:19:44 +0000 pyrohaz 104887@http://forums.leaflabs.com/ <p>Hey guys,</p> <p>I've got the standard SD library working fine with the Maple. I read somewhere on the internet that I can completely avoid the FAT library by directly writing and reading from SD card sectors.</p> <p>After accessing my 32mb SD card with a hex editor, I can see that the start of my text file is at sector 585 or offset 49200. Obviously an SD card can be accessed through SPI so what would be the simplest piece of code to initialize the SD card and access this sector of data?</p> <p>Cheers, </p>