RTC (Real-time clock)

STM32 power saving: RTC backup register and SRAM preservation

RTC (Real-time clock) / STM32 / STM32 power saving

23 October 2023

STM32 power saving: RTC backup register and SRAM preservation – 9

In this article, we finally delve into the backup domain, a crucial step towards resolving the issue of state preservation across sleep modes. We initiate with a comprehensive exploration of the RTC backup registry, subsequently moving onto an analysis of the backup mechanisms for SRAM memory.

STM32 power saving: backup domain intro, and variable preservation across reset

RTC (Real-time clock) / STM32 / STM32 power saving

17 October 2023

STM32 power saving: backup domain intro and variable preservation across reset – 8

Another important element of STM32 is the backup domain. After a brief introduction to the topic, we will evaluate and test the standard solution for RESET, namely the use of variables in the “noinit” and “persistent” memory areas, a very interesting management. And we will write some simple functions to check the features of our devices.

STM32 power saving: wake up from external source

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RTC (Real-time clock) / STM32 / STM32 power saving

9 October 2023

STM32 power saving: wake up from external source – 7

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.

STM32 power saving: wake up from RTC alarm and Serial

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RTC (Real-time clock) / STM32 / STM32 power saving / UART

25 September 2023

STM32 power saving: wake up from RTC alarm and Serial – 6

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.

STM32 power saving: sleep, deep sleep, shutdown and power consumption

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RTC (Real-time clock) / STM32 / STM32 power saving

18 September 2023

STM32 power saving: sleep, deep sleep, shutdown, and power consumption – 5

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.

STM32 power saving: library LowPower, wiring, and Idle mode

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RTC (Real-time clock) / STM32 / STM32 power saving

11 September 2023

STM32 power saving: library LowPower, wiring, and Idle mode – 4

In a remote device, one important feature can be the power consumption, and like other devices, STM32 allows a set of Low Power states.
In this article, we look at the library to use and performance with our devices.

STM32 power saving: intro and Arduino vs STM framework

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RTC (Real-time clock) / STM32 / STM32 power saving

16 August 2023

STM32 power saving: intro and Arduino vs STM framework – 3

In a remote device, one important feature can be the power consumption, and like other devices, STM32 allows a set of Low Power states.
In the Arduino framework, these states are wrapped and simplified to allow the most straightforward management, but we will look at the original state of STM32 to better understand the test results.

STM32: internal RTC clock and battery backup (VBAT)

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RTC (Real-time clock) / STM32 / STM32 micro controllers line Tutorial

2 May 2023

STM32: internal RTC, clock and battery backup (VBAT)

In this article, we will delve into the inner workings of the STM32’s internal RTC and its associated clock system. We will also discuss the importance and implementation of battery backup (VBAT) in ensuring the accurate and uninterrupted operation of the RTC. Whether you’re a seasoned engineer or a beginner looking to broaden your knowledge, this article aims to provide you with an in-depth understanding of these key STM32 features, allowing you to unlock the full potential of your embedded systems.