CortexM4 doesn't appear to be sleeping when using configUSE_TICKLESS_IDLE 1

kamab wrote on Tuesday, March 04, 2014:

Are you sure your application is ever being given the chance to sleep? Usually you would need > 2 ticks to pass without any task being scheduled to allow for tickless mode to be entered.

You should hit those breakpoints. Look for an error in your config file.