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.