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 includes SPI characteristics and clarification of maximum clock frequency when using PB13 and PB14. They are applicable for STM32H523xx, STM32H533xx, STM32H573, STM32H562xx, and STM32H563xx microcontrollers. The purpose of the a...
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 This article presents a quick guidance on how to prevent HardFault occurrences when the ICACHE is enabled on the STM32H5 MCU. 1. Summary and description This article explains why a HardFault may occur when accessing the following: Int...
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 example, we will use the Nucleo-H743ZI as our STM32 reference board to show you how to leverage the STM32CubeProgrammer GUI to access the target’s USART bootloader.Every STM32 MCU comes pre-programmed with a system memory bootloader stored in...
Introduction It is very common to need to port an existing embedded design from one STM32 microcontroller part number to another when application requirements change (for example, Flash, SRAM, GPIO, or peripherals). This is something that can be done...
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...
The purpose of this article is to explain how to generate a custom signal, a sine wave in this case, using an STM32 Microcontroller’s DMA controller and a PWM output from a timer. Although this example uses the NUCLEO-H745ZI-Q, the same steps can be ...
Although it is possible to program the option bytes through a debugger with a tool like STM32CubeProgrammer, there are many times where it is necessary or helpful to program the options bytes in the runtime of the application. The STM32 HAL libraries...
In STM32H7, the base address of system memory is different from the entry point of the bootloader. Thus, in order to jump to the bootloader, address "0x1FF09800" should be used instead of "0x1FFF0000". Below, you find a sample code permitting the j...
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]....
Summary Semihosting can be used to enable code running on STM32 to communicate with the host computer during a debug session. This makes it possible to use host computer I/O (for example keyboard, display, or file system) instead of having such input...
Introduction Data logging applications require storing large amounts of data over a period of time. SD cards are a convenient solution for storing data and many STM32 products include the proper hardware interface. Using a standard file system to wri...
Improving DCMI frame rate with a ov5640 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 ea...