Hello all,
NuttX offers a function clock_synchronize() that synchronizes system clock with clock from RTC (internal or external). The synchronization is done during board initialization and I suppose this can also be called from an application level if required. However I was not able to find any implementation that would automatically synchronize system time with (correct) values from RTC if system clock drifts from real time. It seems the only possible option is to "force" the synchronization by calling the mentioned clock_synchronize() function periodically from application level. What is your view on adding some sort of automatic synchronization that would ensure system clock stays in sync with RTC (or at least error is less than some value) even when i drifts away from "real time"? Quite simple solution is to let clock_gettime() to update base time after N reads however this would add some computation complexity to gettime (I2C communication delay for external RTC etc.) and I am not sure if we really want this inside clock_gettime(). Best regards, Michal Lenc
