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How to let STM32L476 shutdown mode optimization power consumption

Question asked by starlin lin on Jul 12, 2017
Latest reply on Jul 13, 2017 by starlin lin

Dear Sir:

I am using STM32L476 and want enter shutdown mode to save power.

Right now I had call 

MX_GPIO_Init();//this is set all GPIO to Pullup and set Input, 

and now the power consumption only 98uA,

But spec write Shutdown mode is 8 nA or 260nA(with RTC)

How can I reduce my power to nA.


PS:I have try disable PVM and  __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WUFx), but still same.