Segger has eliminated periodic tick interrupts in an RTOS, replacing the typically 1ms system tick with a single-shot hardware timer that generates interrupts when, and only when, necessary, it said. Dubbing the technique ‘cycle-resolution timing’, “scheduling of all time-based events, such as time-outs, delays and periodic timers, can now be specified in microseconds or CPU cycles”. It ...

This story continues at RTOS eliminates periodic tick interrupt for lower CPU power

Or just read more coverage at Electronics Weekly