Rasclock (PCF2127 ) Hardware Clock FreeBSD 12.0
Stefan Parvu
sparvu at kronometrix.org
Wed Jul 17 22:02:49 UTC 2019
>
> The spurious interrupt problems are fixed with this patch (it isn't
> really a problem, the patch just disables the messages):
> https://svnweb.freebsd.org/base/head/sys/arm/broadcom/bcm2835/bcm2835_intr.c?r1=332262&r2=346489&view=patch <https://svnweb.freebsd.org/base/head/sys/arm/broadcom/bcm2835/bcm2835_intr.c?r1=332262&r2=346489&view=patch>
Thanks. I can live with these.
> My RasClock battery had gone dead too. It was no more than 2 years old
> at the most, but the rasclock was running on battery all that time
> (until it died), because I almost never power on the rpi boards. I
> think the rasclock may use more battery power than some other rtc
> boards because the chip it uses is more accurate than most. Part of
> how it does that is to use a temperature-compensated oscillator, but
> that means it uses extra power to measure the temperature.
Right. Now it makes sense. I was wondering is this chip using more battery
than others ? Looks like. And maybe my batteries I bought might not have been
very good. I need to test other models.
Thanks a lot for help.
Stefan
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