Support and General Use > Hardware
Sansа Clip Zip - Improve battery life
Mihail Zenkov:
Early I use two zip with CPU=240MHz and PCLK=120Mhz (in boost mode). ~180 hours without any freeze in everyday use. I not try get it higher.
Mihail Zenkov:
--- Quote from: saratoga on January 02, 2015, 05:32:53 PM ---Fuzev2: Lowering PCLK helps, but does not solve the problem.
--- End quote ---
64MHz still higher than 40Mhz in current rockbox and DBOP can by still very high for fuze v2 display. Maybe just try divide DBOP?
saratoga:
Its very encouraging that such high PCLK works on the Zip.
The first lower PCLK build I posted also divided the DBOP clock by 2, but it seemed to screw up the screen. Possibly I did something wrong. I suppose I should try disabling all frequency/voltage scaling entirely, set the PCLK at 96MHz and divide the DBOP down and see if any combinations work.
Mihail Zenkov:
I look at dbop-as3525.c and see "magic" delay in line 47 and 108, maybe we should check it?
[Saint]:
--- Quote from: saratoga on January 02, 2015, 11:17:01 AM ---I think devices with a wheel will boost whenever the wheel is used.
--- End quote ---
I just caught this looking though past posts, pretty sure GUI_BOOST was intended just for the PortalPlayer iPods, but it got into the Nano2G and Classic as well (probably cut and paste config shenanigans), neither of which necessarily require it in my testing, but I digress.
[Saint]
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