Introduction This article includes preliminary updates of STM32 MCU errata sheets reported since 1st January 2024. It highlights the current description requiring update and the expected one if available. The purpose of this article is to deliver an...
Introduction Many applications require a periodic interrupt that serves as a time base for triggering tasks, adding delays, or tracking elapsed time. This article explains how to configure an STM32 timer to generate an interrupt every second. You can...
Summary Protecting the firmware is a paramount concern in the design and deployment of embedded systems. STM32 microcontrollers, which are integral to countless applications, employ various mechanisms to safeguard against unauthorized access and ta...
Introduction This FAQ concerns enabling USB DMA in STM32H7 devices. Many customers that are working with USB in STM32H7 devices face a problem when activating DMA. What they notice is that everything is working good and USB behaves normally before ac...
Summary This article is a tutorial on how to set up and run the I3C_Controller_Private_Command_IT and I3C_Target_Private_Command_IT example projects. This tutorial uses the NUCLEO-H563ZI board and can be followed with any other ST development board ...
A step-by-step guide to connect and publish real B-U585I-IOT02A Discovery Kit sensor data to a free Azure IoT Central Application.STM32U5 Azure Quick Connect - Getting Started Guide STM32U5 Azure Quick Connect is the fastest way to get your B-U585I-I...
Introduction A library is a collection of reusable, compiled, and tested code that can facilitate the coding of application functionalities. It is designed to support both the code developer and code compiler during the build process and the running...
Introduction Some external USB HS PHYs compatible through the ULPI interface are detailed in Table 12, compatible USB HS PHY in AN4879. However, not all transceivers could be listed in the application note. Compatibility checking is necessary before...
In our example here, we will use the Nucleo-H742ZI as our STM32 board to show you how to use the STM32CubeProgrammer to access the target’s USB-DFU bootloader.Every STM32 MCU comes pre-programmed from our factory with a system memory bootloader store...
In this knowledge article, we use the NUCLEO-H743ZI as our STM32 reference board to show you how to leverage the STM32CubeProgrammer GUI to access the target USART bootloader.Every STM32 MCU comes preprogrammed with a system memory bootloader stored ...
Software updates can be tricky. They often bring new features and fixes, but they can also introduce complications, particularly with migrating projects. Some users like automatic updates, but other users want to remain on a specific version that the...
SMPS (Switched-Mode Power Supply) Theory In packages with an integrated SMPS, the STM32 embeds two regulators that can be selected when the application runs, depending on the application requirements: one LDO (Linear Voltage Regulator) and one SMPS s...
Introduction It is very common for HMI-of-Things applications to have the capability to control and display data between a user and the machine. Such applications require the ability to interface with external memory such as non-volatile memories tha...
This is part 2 of an article, if you would like to read part 1 click here. Coding your application using STM32CubeIDE: 3.1 Generate your source files and edit Note: the full completed project with the source code is attached in the link section [3]....
Introduction The main objective of this article is to provide a step-by-step guide on how to improve DCMI frame rate. This demo uses a STM32U575I-EV that is mounted to a ov5640 camera module, but it can be easily tailored for other microcontrollers...
Within the Cube firmware packages, there are examples of in-application USB DFU that were originally created for use with the DFuse software utility. DFuse is now not recommended for new designs, so the purpose of this article is to show how these ex...
Introduction In some applications, specifically battery-powered ones, it is common for the supply voltage to drop as the battery discharges. Sometimes, both VDDA and VREF+ is powered directly by the battery. The problem with this is if the VDDA is b...
Introduction This article discusses the theory behind making a bit-bang driver as efficient as possible. In the bottom of this article, I have attached a single header file based bit-bang SPI controller mode 0 driver. 1. Pros and cons of a bit-bang ...
Introduction STMicroelectronics offers BSPs (Board Support Packages) for all STM32 Evaluation and Nucleo boards as well as Discovery Kits. This article shows how to add a BSP to your STM32CubeIDE project. 1. Prerequisites Hardware: Mini USB cable to ...
This article is a continuation of Part 1: Introduction to the STM32 microcontroller clock system.We recommend reading part 1 of the article before reading this article. 1. Clock security system (CSS) 1.1 Clock security system on HSE If a failure is ...