STM32L4R5ZI Stop 2 Mode Current Consumption

[DUrbano]

Hi to all,

I recently started to work on NUCLEO-L4R5ZI-P evaluation board; for my first tests I decided to test the current consumption using the JP5 jumper. I put an external 8MHz oscillator on X3 and using a pre-defined test project I tried to go into stop 2 mode; checking my current consumption with what datasheet shows I note an huge difference. Disabling SRAM3 and using the RTC to exit from low power mode, I measure on JP5 about ~75uA in stop 2 mode while in the datasheet this current should be about ~3uA. Please could anyone suggest me what I missing ?

Regards

[Mohamed Aymen HZAMI · Accepted solution]

Hello,

If you are using the X3 oscillator, you must follow this configuration:

Best Regards,

Mohamed Aymen.

[DUrbano]

Thank you very much for your precious support...

[Piranha]

This particular ST's individual is especially "gifted"...

Try suggestions from these topics:

https://community.st.com/s/question/0D53W00000947bASAQ/stm32l433-iwdg-wakes-up-from-shutdown-mode

https://community.st.com/s/question/0D53W00000BMXYMSA5/how-to-enter-sleepstop-mode-on-stm32wb-device-