Genos Clock

[maartenb]

It will be interesting to see how long the back-up power holds (once I have a G to test).

Hahaha, nice try. According to a post in this thread (can't find it quickly) the Genos holds its time for around seven days.

Can you manage to let the Genos stand without power and not play on it for seven whole frickin' days, just to test the capacitor?

I don't think so.


Maarten

P.S. This whole post is meant as a joke.

[EileenL]

Yes I feel it must be a joke. With such a beautiful keyboard why aren't members playing it and enjoying it

[pjd]

Yes I feel it must be a joke. With such a beautiful keyboard why aren't members playing it and enjoying it

Because I haven't gotten delivery yet?   

-- pj

[zionip]

I think the original poster Ian worried about having to replace a backup battery in 5 to 10 years to keep the clock of Genos - that was the purpose of this thread - to remind other Genos owners of this potential issue.

From the Genos service manual, now we find that there is no replaceable battery, just an Elna 0.33F 5.5V DX-5R5H supercapacitor that is recharged when Genos is up, and it could last for 1 week or so without power.

Like all members who participated in this thread, I personally would rather enjoy playing Genos than to stop playing for days to test how long the supercapacitor will hold the clock without power.

Thanks,
Paul

[Joe H]

It's strange Yamaha don't install NVRAM to hold the clock and other data in memory.

Joe H

[zionip]

It's strange Yamaha don't install NVRAM to hold the clock and other data in memory.

Joe H

Hi Joe,

Genos uses TI AM4376 ARM Cortex-A9 CPU and runs Linux OS - we can see it as a specialized computer.  A computer always has a real time clock to keep time.  In the case of Genos, time keeping is essential to keep track of file creation and modification date/time. 

Linux OS relies on real time clock to keep the Unix time:
Unix time (also known as POSIX time or epoch time) is a system for describing a point in time, defined as the number of seconds that have elapsed since 00:00:00 Coordinated Universal Time (UTC), Thursday, 1 January 1970, minus the number of leap seconds that have taken place since then.

NVRAM only keeps configurable settings, data, and firmware etc., comparatively static data, and it has nothing to do with real time clock.  That is why the real time clock needs either a battery or a capacitor to sustain its operations when the computer is powered off.

Thanks,
Paul

[Joe H]

Paul,

Thank you for the detailed explanation about how computers work.

It's nice to have knowledgeable people here on the forum with different expertise.



Joe H

[browzer]

Sorry to interrupt but has anybody got the correct time? I forgot to wind up my watch. 

Ronnie

[Toril S]

Hello friends Why did rhey not place an internal clock in their other keyboards? All kinds of gadgets haave clocks these days! All I create on my S970 is stamped 1.1.2015. It would have been nice to have dates on the files. I

[StuartR]

Hahaha, nice try. According to a post in this thread (can't find it quickly) the Genos holds its time for around seven days.

Can you manage to let the Genos stand without power and not play on it for seven whole frickin' days, just to test the capacitor?

I don't think so.


Maarten

P.S. This whole post is meant as a joke.

Well my Genos is sitting in my little music studio in another house (I have a Tyros 5 here at home). The Genos is powered off for 7 days at a time so I'll check and see if the time remains correct.

[Pianoman]

Yes I feel it must be a joke. With such a beautiful keyboard why aren't members playing it and enjoying it

I too am still waiting for mine to show up.

But when I do get it, I'm not sure if it will be for the purpose of enjoyment though.

I will most probably use it as a work tool. To learn new songs, update old ones, maybe create my own music,
but mostly for the purpose of earning a living with it.
I very much enjoy performing though.

Best Regards and a Merry Christmas,
Pianoman.

[travlin-easy]

Abby, you are going to have so much fun with that new Genos while performing that you will never want to go home again.

Good luck,

Gary