In this tutorial, we’ll discuss The STM32 Sleep Mode, how to enter sleep mode, how to exit from sleep, Wakeup Pin in STM32 microcontrollers, and other wakeup sources with some code examples and a full test project. Without further ado, let’s get right into it!

Jun 25, 2014 · To enable and use the WKUP pin PA0 - you must set the EWUP bit (bit 8) in PWR power control/status register (PWR_CSR). The reference manual does not specify what to set the port pin to (input, output or analogue).

In order to enter the SLEEP MODE, we must disable the systick interrupt first, or else this interrupt will wake the MCU every time the interrupt gets triggered. Next, we will enter the sleep mode by executing the WFI (Wait For Interrupt), or WFE (Wait For Event) instructions.

May 22, 2019 · CubeMx 를 실행하고 아래와 같이 Pin 을 설정합니다. PA0 핀은 EXTI0 인터럽트를 발생하여 Sleep 모드에서 Wakeup 하기 위한 용도입니다. PC13 핀은 GPIO Input 핀으로 입력 변화 시 다음 모드를 실행하기 위해서 사용됩니다.

Jul 9, 2024 · This guide will explore the mechanisms for entering and exiting Sleep Mode using the HAL library, describe different entry and exit methods, and offer practical tips for utilizing Sleep Mode in your STM32 projects.

Oct 9, 2023 · After the timed, alarm and Serial wake-up, the most used one is the wake-up via an external source. In this case, we must pay attention to the pinout of our device to select the correct pin in the correct situation.

May 13, 2024 · Only the real-time clock (RTC), backup domain, and predetermined wake-up pins can be used in this mode. 2. Common tips. For sleep and stop modes, you want to suspend the SysTick system timer before entering the low power mode. If SysTick is still running, it prevents the core from entering stop mode properly.

Mar 19, 2025 · 1.2 Sleep mode. In this mode, the CPU is off, meaning no clock is provided to it. ... Five wake-up pins are available to wake up the device from Standby mode, with configurable polarity for each pin. The wake-up clock is MSI with a frequency configurable from 1 to 8 MHz. ... How to use STLINK-V3PWR to monitor power consumption on STM32 MCUs ...

Nov 5, 2018 · One of the feature of the project, is I'm trying to configure it to go into standby mode to conserve lowest power consumption if my program has been idling for some amount of time, then use WKUP pin (PA0) which is wired to a button to trigger a rising edge to wake the MCU.

In this tutorial, we’ll discuss The STM32 Deep Sleep (Low Power Sleep) Mode, how to enter the low power sleep mode, and how to exit from it with some code examples and a full test project. Without further ado, let’s get right into it!