TagSTM32 Boards

How to use EEPROM M24256 with STM32 microcontroller

In this post we will see how we can use the M24256 EEPROM to read and write data with an STM32 microcontroller. The complexity of those operations are really minimal as long as the provided HAL libraries generated by STM32CubeIDE basically does most of this job. Our main idea is to safely read and write data to M23256 by considering the delays that this chip may have and ensuring our operations...

Use the NAND Flash Memory ( MT29F2G01ABAGDWB-IT) with STM32

In this post, you will find a simple, yet easy to use middleware to interface the NAND Flash Memory MT29F2G01ABAGDWB-IT with an STM32 microcontroller using QUADSPI communication . The Micron NAND Flash devices are available in different configurations and densities to fit your project’s needs. It uses SPI and it is a good an alternative solution to SPI NOR, offering superior write...

STM32L4 Sleep mode using FreeRTOS

A useful functionality in low-powered applications is to set the microcontroller in sleep mode for a specific time. This will reduce the overall consumption of the system, and depending on the application it can dramatically improve the battery life. However, using FreeRTOS, the activation of this mode is a bit tricky due to the fact that you have to take into account several other parameters. In...

STM32 UART – Receive unknown size data using DMA and FreeRTOS

There are several situations where we need to use a UART/Serial interface to connect our microcontroller with an external device. However, a common issue is that in most of those cases we do not know in advance the size of the messages thus, our final application needs to use either per character interrupt or a more advanced way like DMAs. Each method has it’s own pros/cons. As you can...

HowTo: STM32 Custom Bootloader/Application

It is a common practice in embedded system these days to use a bootloader-application architecture. The following source code snippets will help you to build you own bootloader/application project providing by the minimum code that is required to jump from one to the other. The example also works with FreeRTOS. First we need to understand 2 simple things. Each binary will be placed in different...

How to write data to the internal FLASH memory of an STM32

There is a common practice of today’s embedded systems to perform firmware upgrade using custom procedures in order to support different communication protocols during the data transfer such as (KWP2000 etc). For that reason the stock STM bootloader(DFU) is not useful and the development should proceed by creating a custom bootloader that supports the requested functionalities as well as...

STM32 DiscoF7 Simple CAN Frame Transmitter + GUI

This example contains a simple STM32CubeMX + Atollic project based on the STM32F7-Disco board which is able to transmit a CANbus Frame. On top of that the board has a really basic GUI with touchscreen capabilities to activate/deactivate the transmission and of course give a feedback of the procedure. You can freely use alter copy this project but keep in mind that it is a sample and not commented...

STM32 video player over network

This example presents a simple video streaming(PC) and video player(STM32F746 board). The video streaming solution is designed to be flexible with a simple “threading” architecture that allows customization. Due to the image processing limitations (missing JPEG decoder) of the STM32F746) which acts as a client, the server (linux PC) is responsible to decode the selected media files and transmit...

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