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Rockbox mail archiveSubject: Re: BATTERY-FAQ and the FMRe: BATTERY-FAQ and the FM
From: Linus Nielsen Feltzing <linus_at_haxx.se>
Date: Tue, 03 Jun 2003 22:30:18 +0200 Martin wrote: > endlich one good answer from a roxbox guy :) > > but what happens to the fm recorder when you play ....connected to > the AC does it live (another word for eating:) on batteries or AC It needs the batteries for the hard drive spinup. The AC adapter can't deliver enough current to spin it up. However, it will charge the batteries continuously. It is supposed to keep the batteries full, as long as the drive doesn't run all the time. > and what happens when the recorder is fully charged.....how do you > know when the batteries is full.... you stop charge it when you think > the batteries is full or...what if the batteries is not full....and > vice versa about start the recharge again (if deep discharge is on) Are you talking about the FM recorder here? Then don't bother about the deep discharge option (which isn't present on the hardware-controlled FM recorder). On the ordinary recorder, we use the negative delta method to see if the charging is done, except if you reinsert the charger immediately after a complete charge (while the batteries are still warm). It is probably best to read the source code if you want to know the gory details about the Recorder charging algorithm. If you want to know more about the LTC1734, read the data sheet. It is on the data sheet page on the Documentation section on the Rockbox site. > it would be very good if you wrote something more inte the faq > (batteries) ....much more.... You are by far the most inquisitive person yet regarding the battery charging. Sure, we can add more to the FAQ, but not until we feel that we really need it. We have lots of other things to do, like fixing bugs and coding new features. Summary: - Don't ask me more about the FM Recorder charging algorithm. I don't really care that much about how it works, because I can't affect it anyway. - If you have questions about the Recorder algorithm, please be specific, so I can give you better answers. Or even better, read the source code. Linus Received on 2003-06-03 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |