[STM32L433] Asking if there is an example code about how to enter/exit low power sleep mode correctly.

[EHsie.2]

Hi everyone,

I'm working on STM32L433 Nucleo-64 board and I would like to try the low power sleep mode to see the power consumption part.

From datasheet, current consumption us XXuA.

 

Use my example code, the current consumption(PIN is JP6) is about 5.2mA.

 

Anyone can help me to refine/debug my example code(at attachment)?

If possible, I would like to see the current consumption is matched with datasheet. Thanks.

[Piranha]

Set DBGMCU_CR to zero and disconnect the debugger physically.

[EHsie.2]

Let me try it first. Thanks.

[MFran.4]

I had a similar problem and for obtaining reasonable results i used a custom board with only the MCU soldered. I passed from hundreds of uA to the promised few uA.

I checked the NUCLEO's jumpers but it wouldn't work. If you can use a custom board I'd try.