Am 07.07.2014 17:54, schrieb David Anders:
or just purchase a RTC Cape

http://elinux.org/CircuitCo:RTC_Cape for $29.99MSRP

Thanks, but I already have fully working hot-pluggable USB-RTCs I can use with almost all RTC-less boards I have.

But you might have an interesst in some patches I've written to use them. They will make it possible to use the RTC-drivers as modules (and the time still will be set automatically by the kernel), besides to choose by kernel-command-line which RTC driver will be used:

https://lkml.org/lkml/2014/6/13/6

Unfortunately they will likely never end up in mainline.

Regards,

Alexander Holler



On Friday, February 1, 2013 1:51:51 AM UTC-6, Alexander Holler wrote:

Hello,

I've ust had a look at the specs for BeagleBone Black.

As usual, my first question was: Does it support RTC operation?

Having a first look at the schematics, it does not look like it is
possible to connect some coin battery or similiar to drive the processor
in RTC only mode. Am I right and this another non-RTC design which needs
an external RTC connected to I2C or similiar?

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