Difference for stop modes

prudhvichitturi · ‎2025-03-16

Hello ,

I have used the below to go into stop mode:

HAL_PWR_EnterSTOPMode( PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI ); /* CPU will be halted here until a wakeup event occurs */

in the above function, what is the difference

PWR_SLEEPENTRY_WFI & PWR_STOPENTRY_WFI as parameter?

STTwo-32 · ‎2025-03-16

Hello @prudhvichitturi

PWR_STOPENTRY_WFI is used as a parameter of the HAL_PWR_EnterSTOPMode() function to enter STOP mode with WFI instruction. But the PWR_SLEEPENTRY_WFI should be used as a parameter for the HAL_PWR_EnterSLEEPMode() function to enter SLEEP mode with WFI instruction. More details are provided on the pages 384 and 385 of the UM1749 Rev7.

Best Regards.

STTwo-32

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.