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DUrbano
Associate III
Jul 13, 2020 9:17 AM UTC
Solved

STM32L4R5ZI Stop 2 Mode Current Consumption

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.
Mohamed Aymen HZAMI
ST Employee
Jul 14, 2020 3:15 PM UTC

Hello,

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

0693W000001sqhEQAQ.png

Best Regards,

Mohamed Aymen.

3 replies

Mohamed Aymen HZAMI
ST Employee
Jul 14, 2020 3:15 PM UTC

Hello,

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

0693W000001sqhEQAQ.png

Best Regards,

Mohamed Aymen.

DUrbano
DUrbanoAuthor
Associate III
Jul 15, 2020 8:25 AM UTC

Thank you very much for your precious support...

Piranha
Principal III
Jul 15, 2020 9:09 AM UTC