Low power microcontrollers

[kevlar700]

The STM32U* and STM32L* parts have low power features namely; multispeed internal clocks (MSI) and sometimes low power run. This means the program can adjust the system clocks at any moment to reduce power usage. This would appear to only be compatible with light runtimes? I use light runtimes to make porting to chips more expedient in any case. I open this issue simply to raise awareness and consideration during future runtime developments.

Food for thought:
https://www.freertos.org/Documentation/02-Kernel/02-Kernel-features/07-Lower-power-support
https://www.freertos.org/low-power-ARM-cortex-rtos