Rockbox Development > New Ports

SanDisk Sansa c200v2, m200v4, clipv1, clipv2, clip+, and fuzev2

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kugel.:
We do it wrong if the OF handles those cards and also has voltage scaling.

Also, we boost on any microSD access (and thus raise the voltage), so in theory all cards should work if they work without voltage scaling. It looks like the switching doesn't work right yet.

BlueHazzard:
I have found that sometimes i can access the card in the "explorer" and play the files.
The manual boosting is working, when i boost then i can access the card without any problems...

So i think also that the problem is the correct boosting on card access.

At the moment i have slight problems with cygwin, so i can't compile, but I' m working on it....

thanks 

mc2739:

--- Quote from: FlynDice on January 09, 2010, 10:56:44 AM ---Does anyone have any thoughts on perhaps disabling voltage scaling again?  It appears right now it only adds about 30 mins runtime.

--- End quote ---

It looks like voltage scaling is causing problems with recording to the microSD card. See FS#10810

I think it would be a good idea to disable the voltage scaling and see if the microSD problem reports decrease.

saratoga:
Has running the core at 200MHz max and keeping voltage low been tried?  I wonder if that also has SD issues.

FlynDice:

--- Quote from: saratoga on January 12, 2010, 02:08:37 PM ---Has running the core at 200MHz max and keeping voltage low been tried?  I wonder if that also has SD issues.

--- End quote ---

Yes I've tried it but my player/uSD card are not particularly fussy it seems....

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