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Rockbox mail archiveSubject: RTC alarm works - any software design ideas? (was: need RTC help!)RTC alarm works - any software design ideas? (was: need RTC help!)
From: Uwe Freese <mail_at_uwe-freese.de>
Date: Wed, 8 Jan 2003 16:31:36 +0100 Hello Zagor & all others, Now it works: My AJB was successfully switched on from the RTC alarm function after switching if off! The problem was the Trec bit. It is set to 1 when Vcc is turned on. If I set Trec to 0, it means that the RTC is write-protected for 200 ms after Vcc goes down (switching off the AJB). And so the alarm works. I will now add a firmware/rtc_alarm.[c|h] (locally at my computer, not in CVS of course) with a function that sets the alarm and can read a .rockbox/default.alm after startup. So the user (at the moment: me ;) ) can set an alarm time in the format "08:30" in this file to wake up with music.. This will be enough for now. In the future, one could add: - format of default.alm so that the user can write "timers". That means the device switches on at the given time and plays a playlist/dir or records something. I think of a format like this: MTWTF-- 08.30 /music/test dir/ MTWTF-- 09.00 shutdown 08-12 10.30 record /recorded/radioshow.mp3 08-12 11.00 shutdown - with an option, one could tell rockbox if the alarm mod is done at the AJB. If not, all the timer functions can work the same way - only the AJB stays on the whole time. What ideas do you have for this? Comments? Zagor: Did you plan a general timer function like this in more detail? It would be nice if I know what you planned. I'd like to implement this, but don't want to add features that nobody wants/needs. For the electronics part: Expect a detailed description and photos of this mod in a few days if all works fine. Bye, Uwe. Received on 2003-01-08 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |