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 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...
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 ...
Summary This article presents a step-by-step tutorial on who to use the USBX package to develop a USB device composite application on an STM32. The tutorial is based on NUCLEO-H723ZG and can be easily tailored to any other STM32 that is compatible w...
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...
Summary There exist a few helpful examples of UDP applications in our X-CUBE-AZRTOS-H7 package. However, you may find that these examples are not helpful in understanding the steps needed to bring up a similar application on your custom hardware. Th...
How to add your SPI flash into the STM32CubeProgrammer’s external loader?Welcome back with the part 2 of our article series that explains how to add a custom SPI flash memory in the External Loader portion of the STM32CubeProgrammer and in the STM32C...
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 ...
The USB device is detected by the PC (USB host), but the device initialization reports an error, like. "error code 10" on Windows. What is the problem? When using the HAL libraries, the source of this problem can be a too small heap configured in th...
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 ...