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...
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...
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...
Summary This article guides you on how to use FileX, a fully compliant FAT library for media storage and file system management with eMMC. In this example, the selected hardware is an STM32U5A9-DK board featuring anintegrated eMMC card readily avail...
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 ...