How do ThreadX Message Queues work on STM32?Message queues are the primary means of inter-thread communication in ThreadX. One or more messages can reside in a message queue. A message queue that holds a single message is commonly called a mailbox. M...
How does the ThreadX Mutex work on STM32?A mutex is basically a binary semaphore, which means that only one thread can own a mutex at a time. In addition, the same thread may perform a successful mutex get operation on an owned mutex multiple times. ...
STM32 I2C does not workSummary This FAQ describes few tips related to I2C peripheral on STM32 devices. 1. I2C Hardware 1.1 Signal integrity The I2C IO pins must be configured as open drain mode. The logic high level is driven by external pull-up...
How to manage multiple EXTIs with the STM32Cube HAL1. Introduction It is very common to have multiple GPIOs used as External Interrupt (EXTI) sources in an embedded system. But how to manage them in an application code? This is exactly what is going ...
How to configure and use the PSSI on the STM32H71. Introduction The PSSI which stands for Parallel synchronous slave interface and was introduced in our high performance STM32H7 family. The PSSI can be used as a fast interface between two STM32 micro...
How to export a project configuration to a compatible STM321. Introduction For various reasons, a particular STM32 part number selected for a project may not be available in the desired time frame. In this case, you will then need to find a compatibl...
What are the preferred Integrated Development Environments (IDEs) for STM32 microcontrollers?Introduction A typical question new STM32 users ask is what are the preferred IDEs for developing and debugging application code. While there are a variety ...
Baby Detector is an application developed to sense the presence of babies in a small environment. The idea is to face the problem of babies forgotten inside cars, that can lead to their death especially on hot summer days. The core elements of the sy...
1. Introduction and theory When running instance of FreeRTOS on each core, we can implement inter-process communication (IPC) using FreeRTOS message buffers as described here:https://www.freertos.org/2020/02/simple-multicore-core-to-core-communicatio...
How to format input data to import in NanoEdge AI Studio?In NanoEdge AI Studio v3, sensor data can be imported either from file, or "live" from a data logger via serial (USB) port. In both cases, the data format is the same. There are 3 cases to dis...
How can I automate TraceX reads from STM32CubeIDE?To make TraceX automatically fetch information, we can create a batchfile and run it with the debug session of the STM32CubeIDE Goal: Add TraceX support to STM32CubeIDE using X-CUBE-AZRTOS-H7 and make...
How do I remap an alternate function from one GPIO to another using STM32CubeMX? Most of the alternate functions on STM32 Microcontrollers can be remapped to other GPIOs. Refer to the product's datasheet for the alternate function mapping option...
How to compare different STM32 part numbers using the cross selection tool of STM32CubeMX?ST users often ask how they compare different STM32 part numbers. This can be done using STM32CubeMX (or STM32CubeIDE which integrates STM32CubeMX). 1. Procedur...
The STM32H7 products are part of the most powerful STM32 and bring many new features and capabilities. The drawback is the increase of the complexity of the system. Many resources are available on the ST community but also on the net to help you. The...
1. OctoSPI You can find the detailed example with explanation inMOOC - STM32H72x/3x hands-on workshop - 6 Code execution from external FLASHIn this MOOC page you will find the link to the video and the full set of materials to download.Application No...
How to find compatible devices for an MCU from ST products portfolio to work with? This FAQ answers the question: how to find compatible devices for an MCU from ST products, by describing two methods using ST tools. Here is an example using STM32G473...
What are the most important information to know about LoRa communication?What are the resources offered by ST and dedicated to the development of LoRa solutions?This FAQ concerns the LoRa communication, this tutorial contains the basic information to...
What is FSMC and why do I need it?1. What is FSMC FSMC is a parallel line interface used to connect microcontrollers to external memories (like NAND/NOR Flash etc) and transfer data at high speed, it is used in applications that require to process a...
How to make sure the STM32 starts properly in our design? Let's look at the following aspects in more detail: 1. HW considerations2. Start-up configuration3. Software4. Summary (TL;DR)1. HW considerations Datasheet and other documentation Please ...
What are Bluetooth Low Energy Packet Formats?Summary This article details the Bluetooth LE packet formats for different applications from IoT to Automotive. 1.Link layer packet format 1.1 Bluetooth LE Protocol stack The Bluetooth LE protocol stack...
