Rockbox Technical Forums

Third Party => Unsupported Builds => Topic started by: Bilgus on November 15, 2017, 10:50:59 PM

Title: Sansa AMS v1/v2 Power Saving W/ menu clipv1/2, clip+ zip, fuzev1/2, e/c200v2
Post by: Bilgus on November 15, 2017, 10:50:59 PM
There have been quite a few issues across the SANSA AMS line related
to CPU undervolting while most players show greatly increased runtime
some crash.
Rather than constantly upping the voltage we now have a
setting with a safe value for all players and the option for lower voltages

In addition there are options to underclock I2C, Disk, (V2 Display)

So far we have a report of ~50% runtime increase over stock on the fuzev1
I have a clip+ that increased 40% and thats about all the runtime testing so far..
its been run on clip+, zip, fuzev1 but other ams players are supported ( c200v2, e200v2, fuzev2, clipv1..)

There are a few changes to the debug menu, more clocks are shown and the home button scrolls the
menu to the left so you clipzip users can read the values (center button or skipping to next screen resets the position)

Do Note: this is a WIP, some settings might cause undesired results on some devices ( let me know )

Gerrit patch:
http://gerrit.rockbox.org/r/#/c/1737/


Included are builds for Clip v1/2, Clip+, Clip zip, fuze v1/2, c200v2, e200v2

https://www.mediafire.com/folder/i1mw99rkf5ex2/AMS_Powersave

Title: Re: Sansa AMS v1/v2 Power Saving W/ menu clipv1/2, clip+ zip, fuzev1/2, e/c200v2
Post by: cereal_killer on November 16, 2017, 11:06:35 AM
I'd like to test this on my fuze+ (or is this not an AMS device?). Any chance for such a build?
Thanks.
Title: Re: Sansa AMS v1/v2 Power Saving W/ menu clipv1/2, clip+ zip, fuzev1/2, e/c200v2
Post by: Bilgus on November 16, 2017, 11:25:23 AM
fuze+ is the imx233 there are options for power saving there but I haven't messed with it as of yet