[time-nuts] Motorola Oncore UT+ firmware upgrade & backup power questions

[paul swed]

Bobs description is accurate. As an example we had a power hit last night.
My gps rcvr came up at some odd time. (normally its all fine in 10-30
seconds) I guessed the battery was bad its been 5 years. Sure enough
sometime later in hours the time is correct. Time to get a screw driver and
battery. :-)
Regards
Paul
WB8TSL

On Sun, Jun 21, 2015 at 7:41 AM, Bob Camp <kb8tq at n1k.org> wrote:

> Hi
>
> I think there is some confusion here between the almanacs / ephemeris and
> the
> firmware. The Oncore saves the most recent GPS information (almanac and
> ephemeris)
> in RAM. If that’s battery backed up, it re-loads it at boot. The firmware
> is in flash memory.
> Re-programming the flash is (at best) a “return to vendor” process. Given
> how long the
> parts have been out. There is no guarantee that any given part will have
> enough silicon to
> handle this or that rev of the firmware.
>
> Bob
>
> > On Jun 20, 2015, at 7:06 PM, Hal Murray <hmurray at megapathdsl.net> wrote:
> >
> >
> > gigneil at gmail.com said:
> >> I didnt see this well answered - the device loads firmware at each start
> >> cycle.  If i am not mistaken you can even use ntp.
> >
> > I just scanned the ntp source code for the Oncore driver.  I didn't see
> any
> > hints of loading firmware.  There is code to read the firmware version.
> >
> > --
> > These are my opinions.  I hate spam.
> >
> >
> >
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