Skip to main content
S
StanCosgrove
Associate III
May 2, 2024
Question

Sleep stop standby mode - when to use them

  • May 2, 2024
  • 3 replies
  • 2926 views

Hi i m currently coding standby mode to conserve battery energy a application, i know its the lowest current consumption, what and when to use the 3 modes? 

which mode should i use if i wana save battery life yet i still want SPI DMA to transfer in the background? 

3 replies

Andrew Neil
Andrew Neil
Super User
May 2, 2024

The datasheet describes the various features & restrictions in each of the low power modes.

So you consider those features & restrictions, and see which mode best fits the requirements of your particular project.

In general, the deeper the "sleep", the more power you will save - but the less you can do while sleeping, the fewer options you have for wakeup, and the longer it will take to wake up.

Some of the lowest power modes will lose things like memory contents and register settings - which may or may not be a problem to your particular application...

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
S
Sarra.S
ST Employee
May 2, 2024

Hello @StanCosgrove, 

Each mode offers different levels of power conservation and functionality, please check Getting started with PWR

 

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
    Terms & ConditionsAccessibility statement