Why does HAL_PWR_EnterSLEEPMode use NOP instead of DSB to "flush instructions"?
I am using an STM32L071CB MCU. It has a Cortex-M0+ core.I noticed that the implementation for `HAL_PWR_EnterSLEEPMode` in the latest version of the HAL uses a NOP instruction to "flush instructions" before WFI. I don't understand how this is guarante...