STM32F3xx microcontroller low-power application example

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12/25

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STM32F3xx microcontroller low-power application

example

This section describes a real use case with STM32F3xx microcontrollers and focuses on the

power saving techniques used to reduce the consumption of this application.

2.1

Application description

The application is designed as a smart motor monitor and control with the integration of

different low-power modes and features. It communicates messages to the user about the

different application steps and the log time profile.

2.1.1

Functional overview

The application is designed using the NUCLEO-F302R8 board based on a STM32F302x8

device.

The main features of this application are:

•

The use of multiple peripherals: USART, DMA, Timer, COMP, DAC, RTC

•

The use of multiple low-power modes: Sleep, Stop, Standby

•

The real-time log data: RTC calendar (LSE)

The following figure gives an overview of the application ecosystem.

Figure 3. Application synoptic

The application starts when the NUCLEO-F302R8 is powered on. Once the user has

pushed the button or the defined RTC time has elapsed, the user has to choose the