Rockbox Development > New Ports

SanDisk Sansa m200 series (v1)

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shotofadds:
Time for a quick update...

Thanks to some sterling USB work by vitja and gevaerts, I've been able to dump enough raw NAND data from my M200 (harware revision v2) to the PC to be able to perform some useful analysis. I /think/ I now understand the FTL well enough to produce a reliable read-only Rockbox driver (the results of some initial PC-based tests run look encouraging).

The bad, but somewhat expected, news is that this seems to be using a slightly different FTL scheme to the D2 (and iAudio 7?). It's very likely the Logik DAX and C100 use this scheme, though.

The two schemes can probably be runtime-detected, but it'll likely work out easier to split the driver into a common raw NAND access layer (the existing ata-nand-telechips.c?) with separate ftl-v1 and ftl-v2 layers selected at build time, depending on the model.

I hope to find enough time at the weekend to update the Rockbox driver and do some testing on the device. Wish me luck!  ;D

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