Firefly Open Source Community

Title: RTC? [Print This Page]

Author: Aussie_john Time: 2/23/2015 17:35
Title: RTC?
just wondering if anyone has any advice on how to add a real time clock to the board as I couldn't find any mention of the firefly having a battery onboard?

Author: leungtek Time: 2/26/2015 09:36
Title: Re: RTC?

just wondering if anyone has any advice on how to add a real time clock to the board as I couldn't find any mention of the firefly having a battery onboard?

yes , it support rtc , hardware need to do a little change .

Author: solid Time: 2/26/2015 10:51
Title: Re: RTC?
might be possible with an arduino RTC module.

Author: busybee Time: 2/26/2015 10:56
Title: Re: RTC?

No RTC battery on board, but have pads reserved.

Please check J14 (RTC_BAT+), J15 (RTC_BAT-) in the position reference file at:

http://www.t-firefly.com/download/firef ... 30_pos.pdf

Author: Aussie_john Time: 2/26/2015 14:46
Title: Re: RTC?
Thanks, I must have missed it the first time I checked the board diagrams. I assume I can just solder some wires and connect a normal coin battery?

Author: solid Time: 2/26/2015 19:16
Title: Re: RTC?

Aussie, busybee posted the interface, as I understand it - you may need to recompile source to turn the ports on...

sounds like an arduino RTC will fit the bill

Author: busybee Time: 2/27/2015 17:37
Title: Re: RTC?
These are pads, not gpio ports. They should be connected to normal coin battery

Author: Aussie_john Time: 2/28/2015 20:07
Title: Re: RTC?
thank you

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