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DUrbano
DUrbano
Associate III
July 13, 2020
Solved

STM32L4R5ZI Stop 2 Mode Current Consumption

  • July 13, 2020
  • 3 replies
  • 1287 views

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

This topic has been closed for replies.
Best answer by Mohamed Aymen HZAMI

Hello,

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

0693W000001sqhEQAQ.png

Best Regards,

Mohamed Aymen.

3 replies

Mohamed Aymen HZAMI
Mohamed Aymen HZAMIBest answer
ST Employee
July 14, 2020

Hello,

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

0693W000001sqhEQAQ.png

Best Regards,

Mohamed Aymen.

DUrbano
DUrbanoAuthor
Associate III
July 15, 2020

Thank you very much for your precious support...

Piranha
Piranha
Principal III
July 15, 2020

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-

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