Hi Bernhard,
It should be possible with some modifications to use a slow clock as the
xtimer source. There are a few developers working on improving the low
power operation in RIOT. As you discovered, the periph/timer API currently
needs to be updated to support non-MHz timer frequencies. I have
Hello everyone,
the STM32L053 has a low power timer which could be configured to be
clocked by an internal 37kHz oscillator.
For real low power applications it would be a good idea to use this
timer during sleep/stop mode (for the idle tread).
As far as I know the context switching is performed
