The voltage reference buffer embedded in most STM32 devices serve two main purposes: 1. used as a voltage reference for ADCs, and DACs 2. used as a voltage reference for external components through the VREF+ pin Note that as each product family is un...
Introduction Some STM32 MCUs embed two unique identifiers: a unique 96-bit unique identifier and device ID. This article shows how to both obtain these values in your code, and describe some possible use cases for them. 1. 96-bit unique ID This 96-b...
Introduction Following the knowledge article on configuring USB FIFO over USB OTG, this article focuses on practical FIFO memory allocation and configuration examples for different USB device applications on an STM32. 1. Memory allocation parameters...
Introduction This article provides an in-depth explanation of the FIFO (First-In First-Out) architecture implemented in USB OTG controllers operating in device mode on STM32 microcontrollers. The USB system features up to 4 Kbytes of dedicated RAM w...
Introduction The readout protection (RDP) is a security feature that protects flash memory from any unauthorized access. This protection notably prevents an external debugger from reading or modifying the memory content, which is crucial for safegu...
Introduction to CK_INT clock The STM32 products include a flexible clock system for timers, enabling each timer to operate with a specific kernel clock. The RCC configuration determines the kernel clock source for each timer.Timers can utilize vari...
The aim of this article is to provide guidelines for disabling Trustzone on STM32U5. 1. Hardware and software setup Nucleo MB1549-U5A5ZJT6Q1. Hardware and software setupSTM32CubeProgrammer As you can see when connecting your board to STM32CubeProgram...
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...
Summary This guide helps you migrate an STM32 application from a USB HID mouse to a USB HID keyboard using the STM32 legacy library. Below are the steps to achieve this. 1. Project setup You can start by obtaining the project from the mouse device p...
Summary This article provides a step-by-step description of a lightweight algorithm to write and retrieve data from flash using virtual addresses. The key aspect is the low footprint and overall simplicity. The code example in this guide is provided...
There are two possible solutions for connecting two quad-SPI memories using only one OCTOSPI interface. Solution 1: Use a dedicated bit in the OCTOSPI_CR register for external memory selection: MSEL bit for STM32H5, STM32U5, and STM32L5 series or FS...
Users experiencing connection issues with the NUCLEO-WB05KZ, NUCLEO-WB07CC, and NUCLEO-WB09KE boards should check if the problem is due to the low-power mode. The low-power mode is activated by the BLE_p2pserver demo, which is pre-programmed on the ...
The low power wakeup radio (LPAWUR) feature is not enabled by default on NUCLEO-WL33CCx boards. It has been designed for the reception of a specific frame to trigger the wake up of a system. To enable and use the LPAWUR feature on the NUCLEO-WL33CCx ...
Hello and welcome back to the second and last portion! 1. Recap We resume from the point we left off, just to give a brief recap, in part 1 we made all the way up to the code generation with STM32CubeIDE: Among the several files created automatically...
The NUCLEO-WBA55CG with MB1801-NoUSB-D02 has a different configuration for reset management compared to earlier versions. In the default configuration, the reset via mass storage and the reset via debugging tools are disabled, which may cause issues...
To add TraceX support to a STM32CubeIDE project and properly use it you’ll need to follow a few steps, described in detail in this article. Goal: Add TraceX support to STM32CubeIDE using X-CUBE-AZRTOS-H7Although the example is using the NUCLEO-H723ZG...
Introduction This article explains how to set up Sigfox connectivity on the STM32WL3x microcontroller. Sigfox is a low-power wide-area network (LPWAN) technology designed for IoT applications requiring long-range and low-energy communication. By fol...
While the STLINK-V3 is compliant with USB 2.0 and exhibits reliable USB performance across various platforms since several years, the USB communication may fail between an STLINK-V3 and some recent computers. 1. Root cause The root cause comes from...
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 the ...
This article explores the methods of safeguarding your code from unauthorized external access in the STM32H5 series. It delves into the new "Product State" feature, which functions similar to the readout protection (RDP) feature available in other ST...
