Rockbox Development > New Ports
SanDisk Sansa c200v2, m200v4, clipv1, clipv2, clip+, and fuzev2
Moarc:
I see SanDisk provides iNAND documentation (not full, but e.g. with pin description, isn't it important information?) freely at its website, maybe it should help with hacking NAND on v2's?
http://www.sandisk.com/As...ls/ProdManiNANDAbr1.1.pdf
cosmocat:
--- Quote from: Moarc on October 05, 2008, 04:38:20 AM ---I see SanDisk provides iNAND documentation (not full, but e.g. with pin description, isn't it important information?) freely at its website, maybe it should help with hacking NAND on v2's?
http://www.sandisk.com/As...ls/ProdManiNANDAbr1.1.pdf
--- End quote ---
Link seems broken, this one should be better....
http://www.sandisk.com/Assets/File/OEM/Manuals/ProdManiNANDAbr1.1.pdf
funman:
Thanks, this document shows for example that for initializing the device, you have to send ACMD41 until it answers that it's ready.
In the MMC specification, they use CMD1 for that, and CMD41 is 'reserved'
tobi-lu:
Using google, i've found a "non-abridged" version of the manual:
http://www.spezial.cz/pdf/inand_manual_v3.1.pdf
But this document doesn't say anything about CMD41...
edit: Instead, it has lots of references to the "SDA Physical Layer Specification, Version 2.00" which isn't available freely >:(
edit2: well, a simplified version is available on http://www.sdcard.org/developers/tech/sdcard/pls/
edit3: on page 15, there are some informations about initialization.
--- Quote ---The busy bit in the OCR is used by the card to inform the host that initialization of ACMD41 is
completed. Setting the busy bit to 0 indicates that the card is still initializing. Setting the busy bit to 1
indicates completion of initialization. The host repeatedly issues ACMD41 until the busy bit is set to 1.
--- End quote ---
funman:
--- Quote ---Any implementation of the Simplified Specification may require a license from the SD Card Association, SD Group, SD-3C, LLC or other third parties.
--- End quote ---
I believe this will be a problem, so we rather should not look at this document at all.
EDIT: unrelated to SD, but good news anyway ;)
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