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Rockbox mail archiveSubject: Re: Some H340 impressionsRe: Some H340 impressions
From: Will Robertson <aliask_at_gmail.com>
Date: Thu, 5 Jan 2006 13:51:50 +1100 To save battery life. Increasing the CPU frequency increases the amount of power it consumes, so in the interests of conseving battery life it is kept to a minimum. On 1/5/06, John Lawrence <blaquestic_at_gmail.com> wrote: > > why is the CPU boosted at times, and not boosted at other times? > -John > On 1/4/06, Daniel Stenberg <daniel_at_rockbox.org> wrote: > > > > On Tue, 3 Jan 2006, John Lawrence wrote: > > > > > I second everything Jonathan Corbet has said. In addition, sometimes > > the > > > scrolling decides to take a mind of its own. It continues to scroll > > after I > > > let go of the button or doesnt stop at all. Sometimes it just works > > > perfectly. > > > > The continued-scroll-after-key-release is most likely because the key > > repeats > > happen faster than the LCD gets updated. > > > > The fact that it "works sometimes" is probably because this is not an > > issue > > while "boosted" (CPU runnning at 124MHz) since then the CPU runs fast > > enough > > to update the LCD faster than the key repeat, and if you play music > > while > > doing this it will boost every now and then for audio decoding purposes. > > > > We've discussed several different approaches to solve this, one of > > course > > being to enhance the LCD update function to run faster but another way > > could > > be to increase the low CPU speed used to something like 60MHz. > > > > -- > > Daniel Stenberg -- http://www.rockbox.org/ -- http://daniel.haxx.se/ > > > > Received on 2006-01-05 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |