We checked the VRTC pin on the TPS65022 and we got 3V reading when the board
was unplugged. We figured that RTC must get power then. Could anyone suggest
how else to test if RTC gets powered correctly? Otherwise, any ideas why the
clock is reset on every restart?
On 7/26/07, Timur Alperovich <timur.alperovich@...> wrote:
> > For the sake of others who may find this thread, care to share?
> I ended up loading the rtc-sa1100 module along with rtc-core, rtc-dev,
> rtc-proc. In the end I had rtc0 device created in /dev. hwclock can query it
> and reports the time from the chip, but on restart the time is still reset.
> We desoldered the 0 ohm resistor and attached the leads for the 3 Volt
> battery to it. We did continuity test and the pins on the 24 pin connector
> are the same as the ones where the 0 ohm resistor was connected. What could
> be the cause for the rtc to reset? When gumstix reboots, is power lost to
> the board?