The sam0 rtt busy loops for 180us every time an alarm is set or the counter is read, this propagates and leads to timing errors on ztimer_msec that are higher than > +-1msec. The same goes for fe310.
The sam0 rtt busy loops for 180us every time an alarm is set or the counter is read, this propagates and leads to timing errors on ztimer_msec that are higher than > +-1msec. The same goes for fe310.