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Author SHA1 Message Date
Daniel Thompson
fb18705b9b manager/rtc: Experimental power saving technique
Currently the time is calculated 8 times per second from (relatively) slow
python code. Optimize the power consumed by reducing the number of times
we check for wall time updates to only once-per-second and use native
code generation to reduce VM overhead when executing this critical code.

At the time of writing the difference is battery life has not yet been
measured (but we know the current master branch is worse than v0.4 and,
in theory at least, this should close the gap).

Signed-off-by: Daniel Thompson <daniel@redfelineninja.org.uk>
2021-06-04 10:49:33 +01:00
Daniel Thompson
d0a99d5636 manager: Implement alarm callbacks for applications to use
Create a simple time queue where actions (functions or bound methods) can
be queued against the real time clock.

Signed-off-by: Daniel Thompson <daniel@redfelineninja.org.uk>
2020-11-14 12:24:28 +00:00
Daniel Thompson
880083977c drivers: nrf_rtc: Finalize docstrings 2020-05-14 21:36:33 +01:00
Daniel Thompson
09071427e4 drivers: nrf_rtc: Fix some tab/space issues
These issues do not appear when parsing with micropython but when we
import this file into sphinx then things go a bit south.
2020-05-10 09:34:22 +01:00
Daniel Thompson
c1f8823f61 Add PNVRAM support to avoid forgetting the time during a reboot. 2020-05-09 14:19:10 +01:00
Daniel Thompson
2d437b0f68 wasp: drivers: nrf_rtc: Fix a nasty bug when setting the time
The code to recalculate the uptime to walltime adjustment was broken
(e.g. the longer we leave it after reboot the more inaccurate the time
setting becomes).

Fixes: 80079e4 ("wasp: nrf_rtc: Add a tiny bit of extra resolution")
2020-04-26 15:01:48 +01:00
Daniel Thompson
9348e758b2 wasp: nrf_rtc: Add a tiny bit of extra resolution
We now have a couple of applications (stopwatch, Game of Life) that benefit
from sub-second precision. The micropython RTC/utime code for nrf still
needs a major overhaul but this allows us to paper over the cracks for
just a little longer.
2020-04-26 15:01:48 +01:00
Daniel Thompson
b9fe31241c Add licensing information for all wasp-os files. 2020-03-22 15:40:18 +00:00
Daniel Thompson
9664c394a6 drivers: nrf_rtc: Add a higher res monotonic timer 2020-03-07 11:49:35 +00:00
Daniel Thompson
f689c90498 wasp: Add full dd-mm-yyyy calender tracking 2020-02-19 19:57:08 +00:00
Daniel Thompson
127df66335 wasp: pinetime: Basic RTC support
Currently this supports time only (no date) and it based on the
RTCounter class which is customized for nRF ports. At present
the nRF port doesn't have proper machine.rtc support so we have
implemented within wasp instead.
2020-02-03 19:12:04 +00:00