The Squeezebox Radio does not have a special purpose RTC chip, it has a low power general purpose microcontroller with an accurate crystal. It also has, like Boom, a backup super-capacitor, which can power that microcontroller for up to 24 hours when the power goes out to keep time. This processor can also be powered by the rechargeable battery, and in fact, manages the battery charging and can power up (and down) the main CPU.
The current plan is to copy the basic behavior that Boom has in the case of a power and/or network loss. Preserve the real time clock and, in the case that the network isn't available remember when the next alarm time is and play a back-up alarm sound if it can't play the network audio. If you have the optional battery installed and there's no AC power available, Radio can also power itself up before the alarm time and play back the network audio if there's a network available, then fail back to the built-in alarm sound. I think this is a great first-cut for the 1.0 release. Because the main CPU and the microcontroller can both be upgraded in future releases, there's plenty of opportunity for improvement. Please let the team know how you think this can be improved... -- dean ------------------------------------------------------------------------ dean's Profile: http://forums.slimdevices.com/member.php?userid=2 View this thread: http://forums.slimdevices.com/showthread.php?t=68252 _______________________________________________ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
