Stm32 sleep. You can use any of the STM32 Timers to achieve this task.

Stm32 sleep. Jan 29, 2018 · Posted on January 29, 2018 at 13:02 What is the best way to put STM32L0 micro-controllers to sleep for limited time duration (preferably using RTC)? #stm32l0 #stm32-sleep Sep 25, 2023 · As usual our microcontrollers give a wide range of wake up sources, we already see a timed wake-up, and now we introduce the wake-up via RTC alarm and Serial of our STM32. Jun 13, 2022 · Entering low-power modes, especially the Standby and Shutdown modes, is another mostly software related disaster from ST. I found this post which gets me almost all the way there Jun 18, 2024 · So I wonder whether sleep mode can do such a thing On the table ,it state "U" in sleep mode for ADC, which is unchanged. How does library low power modes translate to MCU modes - well, you would have to go through Oct 30, 2016 · Posted on October 30, 2016 at 15:45 Hello! I am using the STM32L476 for my project and i need to implement a standby mode. Low-power modes are implemented with other features to reduce the average current consumption over the life of the application. In this article, we look at the library to use and performance with our devices. Mbed Studio looks promising and anything is cool. I have tried it with an interrupt using UART and Button and both the modes are working fine. g. Step-by-step guide with code example. The code is executed from the SRAM or the flash memory. Point of this modes is simple. According to the following state diagram that shows all the possible transitions for STM32 low-power modes, we first need to go from “ Run Mode Jun 26, 2024 · For sleep and stop modes, you want to suspend the SysTick system timer before entering the low-power mode. Nov 3, 2021 · The thing is I encounter the very same problem with tx_thread_sleep () when I create a new STM32 project with the board selector. com STM32 Sleep Mode Introduction Power consumption is a critical concern in modern embedded systems, especially for battery-powered devices. 声明：文章装载自己的CSDN账号 一、低功耗模式简介在系统或电源复位以后，微控制器处于运行状态。当CPU不需继续运行时，可以利用多种低功 耗模式来节省功耗，例如等待某个外部事件时。用户需要根据最低电源消耗、… STM32 Timer Delay us & ms An alternative solution other than the STM32 DWT Delay is to use STM32 Timers to achieve delay in milliseconds, microseconds, and even nanoseconds (require SysCLK >= 100MHz). First, we need to make sure that the configuration of FreeRTOS includes the IDLE Hook and it is not in tickless mode. Contribute to stm32duino/STM32LowPower development by creating an account on GitHub. I want to use Sleep Mode. Ask question microcontroller arm stm32 low-power sleep Jan 15, 2025 · STMicroelectronics Community STM32 MCUs STM32 MCUs Embedded software Configure peripherals after sleep Options Apr 17, 2024 · Hello @Kai_Satone n To reach stop modes you can use LPTIM or RTC clocked by LSE typically, the RTC has a resolution of 1 sec, which is inappropriate for most cases. Thus, the Feather can only wake from deep sleep using the clock (unless you do some very tricky soldering with magnet wire). The STM32 microcontroller can wake up from shutdown mode by a WKUP pin rising edge, RTC alarm (Alarm A and Alarm B), RTC wakeup, tamper Sep 11, 2018 · I'm working on a low power driver for our project and want to put the mcu into sleep mode to be woken up by a timer. h> #define CLOCK_INTERRUPT_PIN Sep 14, 2021 · I'm trying to use RTT on an stm32L433 and it looks like it doesn't work when the device is in sleep mode (no output on the RTTViewer). I have programmed the controller to wake for every 10s and blink LED. Does anyon STANDBY MODE in STM32 || LOW POWER MODES || CubeIDE ControllersTech 46. STM32 Sleep Mode, Deep Sleep Mode, Stop0-Stop1-Stop2 Modes, Standby Mode, Shutdown Mode & Wakeup Sources Jun 26, 2024 · Learn how to use sleep, stop, standby and shutdown modes to reduce power consumption and debug your applications. 介绍STM32具有多种低功耗模式，当前以STM32L4系列的低功耗模式最为丰富，此处基于STM32L476和STM32CUBEIDE环境介绍睡眠模式（SLEEP）事件唤醒的实现 (HAL库）。 这里以管脚中断为中断源。 Feb 8, 2025 · Hi, I want to go to sleep/stop mode with STM32 and wake on interrupt. 0 now 🙂 Now for at little “test things out” I’m trying to get my Blue Pill board (STM32F103C8T6) doing deep sleep. Sleep Mode is the first level of low-power operation in Sep 18, 2023 · We have already described Idle mode and the relative power consumption, in this article we continue to measure power consumption of other sleep modes to have a brief comparison. However my code doesn't seem to work on the stm32f030 but works on an stm32f103. During 1 cycle all the process to receive and send data lasts about 1 minute, the rest 9 minutes the 4G/GPS module is shut down and the MCU needs to be set to sleep mode to minimize p Sleep and Low-power sleep modes allow all peripherals to be used and features the fastest wakeup time. I prefer using a general-purpose or basic timer so you don’t lose valuable hardware resources (like advanced PWM, trigger sources, etc Aug 29, 2023 · Hi, I work with low power sleep mode in stm32 and it is sleep mode works well in our programme. The STM32 family of microcontrollers provides several low-power modes that allow developers to significantly extend battery life by reducing power consumption when full processing power is not needed. May 3, 2023 · In this article we selected the STM32F401 MCU that can be configured in four different modes: Run mode, Sleep mode, Stop mode and Standby mode. May 2, 2024 · 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? May 1, 2015 · For library 39, I made a low power modes library. 8mA. If SysTick is still running, it prevents the core from entering stop mode properly. Is there any other solution to solve this? Is it too much of the work With the integration of the ART accelerator 8‐Kbyte instruction cache, the STM32U5 series MCUs can operate at frequencies up to 160 MHz and achieve 240 DMIPS performance, while maintaining extremely low dynamic power consumption. It describes how to use the STM32F10xxx product family and details the clock systems, register settings and low-power management in order to optimize the use of STM32F10xxx in May 27, 2022 · Introduction The STM32’s integrated RTC (Real-Time Clock) peripheral can be used to periodically wake it up from one of the various Low Power modes. when a debugger is attached, stepping through the code makes it works fine when a debugger is attached ru Start asking to get answers Find the answer to your question by asking. Sep 27, 2023 · Hi everyone, Is anyone can explain the SLEEPDEEP bit from SCB->SCR with more information than the pm0214 stm32 cortex-m4 reference manual? Controls whether the processor uses sleep or deep sleep as its low power mode: 0=Sleep, 1=Deep Sleep What i want to know exactly is why do we need to reset this Mar 28, 2019 · 確認環境 STM32マイコン Keil μVision 及び TrueSTUDIO ST-Link/V2 STM32Cube (HALライブラリ) SLEEPモードの実装 まず、SLEEPモードの実装は概ね以下となります。 Dec 2, 2023 · In sleep mode, HSE clock still enable and in stop mode and deeper mode, HSE clock is disable. The purpose of this article is to share tips for power consumption optimization while describing steps to achieve it. Additionally there also seems to be one or two hardware bugs and/or undocumented conditions. I will get data from another MCU via UART. To archive our results we need to make some minor modifications. The internal oscillator clock is then used for frame reception: The power consumption is the biggest advantage of low-power STM32 microcontrollers. Nov 21, 2021 · Hello, I'm trying to use an STM32 (blue pill) with some other modules (including an external RTC). It will also highlight important points and precautions for customers who encounter issues. Jul 20, 2016 · I'm trying to implement a sleep mode in a microcontroller to save power but I don't quite understand why it behaves the way it does. 1 Mar 16, 2023 · Hello, I have the following line, assert(TX_SUCCESS==tx_thread_sleep(2)); I can see that the thread is generally not sleeping at all. The time base can be programmatically changed but normally it’s 1ms as the systick Jul 2, 2009 · But at the same time i need in using watchdog timers. Any specific actions to reduce the total consumption to the minimum, particularly thinking to the radio? When is it good to enter SLEEP or STOP mode ? If anyone can point a working example, it will be great :) Context Aug 14, 2025 · 文章浏览阅读8. push-button is mapped to EXTI pin. Sleep mode Low-power run 4. Feb 6, 2022 · Different Low Power mode are described in the STM32L Datasheet: Low Power Run : CPU switch to 131KHz clock to save power. I want it to wake up after 10 seconds. Introduction This application note is intended for system designers who require a software and hardware implementation overview of the low-power modes of the STM32F101xx, STM32F102xx and STM32F103xx products. my test code is a loop with a printf and a 2seconds sleep. I have checked threads are created with no errors. Mar 1, 2024 · I'm working on some code to wake up from Sleep or Stop mode when a low ADC value happens. when a debugger is attached, stepping through the code makes it works fine when a debugger is attached ru Nov 3, 2021 · The thing is I encounter the very same problem with tx_thread_sleep () when I create a new STM32 project with the board selector. Current is down to 6,5uA Sleep Mode : CPU is stopped, Memory & Register are retained, some peripheral stays active. In our test, the NUCLEO-F401RE is configured in the Stop mode. See code snippets, current measurements and common pitfalls for STM32 MCUs. But I see an edge case where interrupt could occur just before going to sleep/stop mode. I want the device to go to sleep/standby mode for 10 seconds and wake up after the 10 seconds are done. After last interrupt it should wait for 10sec and go back to sleep. it is mostly used in deeper sleep modes and not in sleep mode. I use the latest STM32 Core and the Stm32 LowPower library. You can set current down to about 2uA with proper low power mode. However, when I create a new project with MCU/MPU Selector to choose STM32F429ZI, following the same steps and using the same source codes, there is no problem at all. I would as well suggest upgrading to another STM32 as @Andrew Neil said the blackpills are mostly fake! There are quite range of affordable Nucleo boards with LPTIM In this video, I will show how to use the HAL SLEEP function with Interrupt to exit. I want my microprocessor to sleep for 10 seconds after processing. How do I handle interrupt just before going to sleep/stop mode (cancel sleep/stop mode)? Oct 26, 2024 · Low Power Modes As ST’s stated there are 6 low-power modes available in STM32L4 microcontrollers. The L4 series MCU Mar 22, 2024 · Sleep Mode State The sleep mode code snap shoot is below. 1. What might be causing the thread to ignore the sleep? Aug 31, 2023 · STMicroelectronics Community STM32 MCUs STM32 MCUs Products Timer waking from Sleep mode Aug 10, 2021 · After a year of being elsewhere I’m back in mbed world. See full list on controllerstech. In these modes, the CPU is stopped and each peripheral clock can be configured by software to be gated ON or OFF during the Sleep and Low-power sleep modes. h> #include <STM32LowPower. Jan 29, 2018 · Posted on January 29, 2018 at 13:02 What is the best way to put STM32L0 micro-controllers to sleep for limited time duration (preferably using RTC)? #stm32l0 #stm32-sleep Learn how to create precise delay in microseconds in STM32 using HAL timer configuration. Sleep Mode : CPU is stopped but it can be wake-up by any of the active peripherals. 101 - Any difference to WFE and WFI power mode exit here? 110 - No idea! 111 - No idea! Aug 28, 2014 · I want to enter the sleep mode with WFI on a stm32f030 (cortex M0). This timer is usually set up in such a way that it’s initially loaded with a value that keeps decrementing until the timer reaches 0 and fires an interrupt every 1ms. Afterwards we need to set the RTC with the highest priority (0). Active peripherals: Even though the CPU is off in LP Sleep Mode, peripherals and other components may still be active (refer to " Table 27. The minimum relevant code example is as follows #include <Wire. There are no calls to tx_thread_wait_abort in the code. I enter the sleep mode by configuring all GPIOS as analog and disabling the GPIO’s clocks. The internal oscillator clock is then used for frame reception: Jun 26, 2024 · Hello, I am trying to use the SLEEP and STANDBY modes with the RTC. Dec 9, 2016 · In addition to dim's answer, which would indicate that you might try manually turning off peripherals before going into deep sleep (I don't know if this is handled by deep sleep all by itself) to see if this reduces your sleep current, you need to absolutely pore through the schematics for the Nucleo Board to see if there might be pull-ups, LED's, etc, that might be sucking up current. 📁 Download project files & article: STM32 Low Power Modes Nov 23, 2019 · I can’t understand how to enter and exit sleep mode. h> #include <RTClib. How can I do? Arduino Low Power library for STM32. However, I am confused if for example I wanted to have my project to sleep for every 500mS, and wake up and read some i2c before going to sleep again, how can I put the timer interrupt method to wake up my chip? May 6, 2022 · Preface Nowadays, MCUs are required to be power-efficient. c file also only appears to offer functions for entering sleep, stop_2 and standby states but not the shutdown state that we desire in our application. set up WFE/WFI with ADC Jul 24, 2019 · When trying to implement sleep mode it appears the code enters and exits sleep mode once and then gets stuck in sleep mode after and will not wake back up. The firmware execution starts from the very beginning, all previous context is lost and the system starts fresh. Since I have the Seggar J-link connected to over a JTAG port for debug, I can see that the RTC Alarm call back is being Apr 2, 2021 · Introduction The STMicroelectronics family of ultra-low-power MCUs utilize a low-leakage technology and an optimized design in order to achieve outstandingly low current consumption, making them ideal for battery powered and energy harvesting applications. The idea is to make the stm go into deepsleep and wake it up once every day to do its business. The only difference to tell whether it’s a clean boot up from a reset or a wakeup from standby is the SBF status flag in the PWR power Feb 2, 2022 · Hi. I am using STM32L010C6Tx. I posted some code below of what I believe Jul 9, 2024 · Power management is a critical aspect of designing efficient and sustainable electronic devices. I know that the sleep entry mode is either WFE or WFI. This issue what we observed is once immediately flashing hex file to controller using STlink programmer, Controller is not entering in sleep This project is an STM32 based sleep tracking device. 4. This allows users to control power consumption in more flexible ways. The regulator is in low-power mode to minimize its operating current. Can someone share an example of how to enter and exit sleep mode on the L4 series? I use ADC + DMA + TIM and I want to go to sleep mode, and after the interruption comes from DMA, I want the microcontroller to wake up, process the result and go ba STM32 Wakeup (Exit) Shutdown Mode When the STM32 microcontroller wakes up from Shutdown Mode, it’s like booting up after a complete system reset. You can use any of the STM32 Timers to achieve this task. Then it waits for the external interrupt to wake it up, execute the interrupt and continue with the main program. STM32 Deep Sleep (Low Power Sleep) Mode The STM32 Low Power Sleep Mode (Deep Sleep) is entered from the Low Power Run Mode. In the past I had a good dialogue over here: How to deep sleep? - #11 by kenjiArai , and I think I have tried following what I learned back May 22, 2024 · I am working with STM32 U575/U5A5 and L4 series of STM32 controllers in low power mode. I will tell you only the highlights of all 3 power down modes in this post Mar 19, 2021 · STOP2 and STANDBY modes are great way to achieve uA and sub-uA consumption. If you want to use PinAlarms, you'll need something like the Micropython Pyboard, which exposes PA00 on the X1 pin. com/1sand0s Nov 5, 2024 · The stm32_lpm_if. You want decrease current on device. ST has introduced the L series and the latest U5 series of MCUs for power-saving purposes. If one of my data is 6, I want to wa Sep 26, 2022 · I don't use the ST HAL but I do have a question. C Nov 23, 2021 · 本节我们来讲一讲stm32的电源控制，也就是低功耗模式。 1）stm32的低功耗模式简介 stm32有三种低功耗模式，功耗依次降低： 睡眠模式（sleep mode），停止模式（stop mode），待机模式（standby mode）。 Nov 5, 2022 · STMicroelectronics Community STM32 MCUs STM32 MCUs Products IWDG disable during Sleep/Stop Dec 4, 2023 · stm32 low power sleep code. Each interrupt/event line corresponds to an edge detector, which can detect the rising edge and falling edge of the input signal. My aim is basic, but I can not use the process. This topic provides an example of how to do it correctly and reliably and an explanat Nov 8, 2021 · When I include in my thread a call to tx_thread_sleep the program stops in HardFault_Handler when this function is called. But with RTC I am facing an issue. 2. STM32 SysTick Timer All STM32 ARM Cortex-M processors have an internal SysTick (System Tick) timer which is a 24-bit down-counting timer. I don't have any interrupt pins. Jan 11, 2017 · 001 - as 000 010 - How does pending affect entry into sleep mode for WFE and WFI? 011 - I guess the answer here is as 010 but with possibly different wake up conditions? 100 - I'd guess WFE and WFI both enter low power mode and exit low power mode no problem. You must either create complex synchronization between tasks, and possibly create a “managing” task that puts the system into deepsleep, or you can use #Misc Thanks for the hard work & inspiration for all the people working on STM32duino! For more about low power on STM32 devices, see e. STM32 Low Power Modes Tutorial. Sep 25, 2023 · As usual our microcontrollers give a wide range of wake up sources, we already see a timed wake-up, and now we introduce the wake-up via RTC alarm and Serial of our STM32. I started with a simple program that puts the CPU into sleep mode at the beginning of the execution. Source code can be downloaded from: https://github. During advertising, CPU1 has nothing to do, CPU1 is in CSTOP, only CPU2 wakes up to manage the advertising. HAL_PWR_EnterSLEEPMode(power mode, sleep entry mode); function. According to datasheet, current consumption in sleep, state is 0. MCU goes sleep mode after 5 seconds and wakup for external interrupt pin to connect for MCU wake up. STM32 Sleep On Exit The Sleep On Exit feature in STM32 microcontrollers is a low-power mechanism that allows the device to automatically enter Sleep mode after exiting an interrupt service routine (ISR). I am using MikroC as an environment and I don't think they have Wait for interrupt function. So I send it to sleep using: PWR_EnterSleepMode(PWR_Regulator_ON,TRUE) which works, but now it does not wake up when I send data through the uart. Hello, I would like to understand what is the recommended approach when working with interrupts and low power modes, when using the H In this video we take a look at the various low power/sleep modes available with STM32 devices. Feb 19, 2025 · For example, reducing the system clock to below 2 MHz before entering Low-power sleep mode can decrease the power consumption of peripherals that rely on the system clock. Is there anything else i need to do before entering the sleep mode besides using - HAL_PWR_EnterSLEEPMode(PWR_MA Apr 10, 2022 · Hello, I'm working in a project to receive GPS NMEA sentences and send data thru 4G TCP connection every 10 minutes. I want to use the sleep mode and i have a few questions: 1. STM32 Wakeup (Exit) Standby Mode When the STM32 microcontroller wakes up from Standby Mode, it’s like booting up after a complete system reset. Can i disable IWDG and how? At certain points in execution, I would like the chip to go into low power sleep mode. How do you wake up from sleep mode, and is that source powered up with clock and interrupt enabled? From your description it appears you never exit sleep mode. Dec 17, 2020 · STM32 only allows a single pin to wake from deep sleep, PA00, and it isn’t exposed on the STM32F405 Feather Express. Aug 21, 2019 · If you happen to use stm32 hal library, you can initialize your systick interrupt for 1 ms and use the standard in stm32 world HAL_Delay() function and provide your own implementation of sleep(): We would like to show you a description here but the site won’t allow us. Current is down to 400uA @ 16 Mhz to 1mAh Low Power Sleep Mode : CPU is Oct 27, 2015 · Posted on October 27, 2015 at 13:33 I have implemented IWDG and when entering sleep mode IWDG wakes up STM and resets the device. 6k次，点赞2次，收藏44次。本文介绍了STM32L4系列芯片在睡眠模式下的事件唤醒实现，通过HAL库配置GPIO管脚触发事件，进入SLEEP模式并优化唤醒机制。在进入SLEEP模式前关闭不必要的中断，确保只有指定事件能唤醒系统，提高低功耗应用的可靠性。同时讨论了如何在多事件环境中选择性 May 24, 2020 · 按功耗由高到低排列，STM32具有运行、睡眠、停止和待机四种工作模式。上电复位后 STM32 处于运行状态，当内核不需要继续运行，就可以选择进入后面的三种低功耗模式降低功耗，这三种模式中，电源消耗不同、唤醒时间不同、唤醒源不同，用户需要根据应用需求，选择最佳的低功耗模式。三种低 Learn how to use STM32 Sleep Mode to minimize power consumption and wake the MCU using interrupts. Aug 1, 2025 · Summary This article provides an overview of the low-power modes available in the STM32N6 series. Exiting from sleep mode is on EXTI external interrupt. Introduction The STM32N6 series is designed to offer a range of Dec 7, 2016 · STMicroelectronics Community STM32 MCUs STM32 MCUs Products Wake up from the sleep mode Options Nov 12, 2023 · I want to use sleep mode because of the power consumption of the MCU. Jul 9, 2023 · Hello, I am trying to put my STM32F103C8T8 in sleep mode where all clocks are running etc. How can i update (reload) watchdog counters while sleep mode during? Usually it is making in some interrupt handlers (WWDG_IRQHandler for example), but after interrupt occurs, MCU exit from sleep mode. Low power mode and wake from sleep. If you are working on battery project, this will be very helpful. In order to take full advantage of the low-power capabilities of these devices, it is necessary to know what low-power modes are available Dec 17, 2023 · NOTE: I have edited this post after some of the replies, to fix some typos in the code and to use "insert code" instead of "Preformated" to get syntax highlighting. I think it works because when trying to flash Sep 11, 2023 · In a remote device, one important feature can be the power consumption, and like other devices, STM32 allows a set of Low Power states. enter sleep mode and shutdown mode 2. and wake it up using external UART interrupt. EXTI (External interrupt/event controller) manages 20 interrupt/event lines of the controller. I haven STM32F4 power consumption Embedded system designers are currently facing an urgent need to make a trade-off between power efficiency and high performance, especially with recent high-performance microcontrollers such as the STM32F4 series. I’m on mbed-os 6. Dec 31, 2021 · STM32 低功耗睡眠模式（SLEEP）事件（EVENT）唤醒实现及优化1. I changed this call by a delay with tx_time_get as in TX_thread_Creation example and this works correctly. GitHub Gist: instantly share code, notes, and snippets. If you never wake up, that delay call in the Jul 2, 2020 · Hello, I wonder how the STM32WB device should be entered in SLEEP or STOP mode. This allows you to simple put STM32F4 into SLEEP, STOP or STANDBY mode. 1K subscribers 30K views 5 years ago STM32 Low Power Run Mode This mode is achieved by reducing the system clock frequency (SYSCLK) below 2 MHz. The components required to utilize the code are as follows: STM32F103C8T6 development board MAX30102 heartrate sensor and pulse oximeter, connected via the I2C1 line MPU6050 gyroscope and accelerometer, connected via the I2C2 line MicroSD card module and MicroSD card, connected via the SPI1 line HC-05 Bluetooth module, connected via the . The mcu enters the Sleep mode but does not exit from the same. Prerequisites 2. The point is i want to deploy a function that adc wake the mcu from sleep mode with low layer lib, but I can't find examples. Oct 11, 2019 · In this example, we are using an STM32 microcontroller (STM32L4) to perform sleep modes using the RTC. There is already Arduino low power library for Arduino 32b boards so this one uses same names as in Arduino library for compatibility. It’s a combination of Low Power Run (LPR) Mode and Sleep Mode to achieve even less current consumption than both modes. But I need a output for MCU sleep for 1 min without ADC function and I wakeup the MCU to ADC value to inc Jun 3, 2020 · The name of low power modes are different because it's a library for Arduino IDE. The firmware example in this application note provides helpful hints on achieving the datasheet levels of power consumption and a simple framework to ease further experimentation with different configurations. 1 Wake-up from a low-power mode when the internal oscillator is off If the STM32 MCU is in a low-power mode, and the internal oscillator clock used as USART/LPUART kernel clock is switched off, when a falling edge on the USART/LPUART receive line is detected, the USART or LPUART requests the kernel clock to be switched on again. Also, I assume ST must update the FreeRTOS tick counter on wakeup after sleep to account for the lost RTOS tick interrupts while sleeping. Before you watch this, please see the video on how to use the STM32CubeM Oct 9, 2023 · STM32 external interrupt controller (deep-sleep wake-up) Each IO of STM32 can be used as an external interrupt input. It provides hands-on instructions for utilizing the Standby demo, detailing how RAM retention is implemented and how to run the demo code. You either you this low power library or you do it by yourself using asm or registers. One of the most effective techniques for reducing power cons Oct 25, 2013 · Posted on October 25, 2013 at 15:00 Hi everyone I'm trying to put my STM32L1 into sleepmode and wake it up again with an uart interrupt. This chapter will mainly introduce the operations under various power-saving modes, and provide an example program using the Sleep mode. 13. When it goes into low-power sleep mode though, the watchdog timer remains activated and will reset the entire MCU after the timer goes to 0, making it seemingly impossible to use both the watchdog and low-power sleep mode at the same time. When using an RTOS, the tasks must synchronize when to go to deepsleep, especially to STANDBY mode, which requires most hardware modules to be re-initialized. ie6k qcdfcq fdu dgme27 htqff nvm oij r9f udq7b 3rrly