STM32 MCUs
From FAQs to complete How-to articles, find useful articles on STM32 MCUs programming, troubleshooting, ecosystem, and product details.
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Knowledge Base Articles

How is my SPI's baudrate calculated using STM32CubeMX?

STM32CubeMX is a graphical tool that allows users to configure STM32 MCUs (microcontrollers) and MPUs (microprocessors) quickly and simply. In addition, the tool also assists in generating the corresponding initialization C code for the Arm Cortex-M...

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How can I output a clock signal to the STM32’s MCO pin?

STM32CubeMX is a graphical tool that allows users to configure STM32 MCUs (microcontrollers) and MPUs (microprocessors) quickly and simply. In addition, the tool also assists in generating the corresponding initialization C code for the Arm Cortex-M...

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Custom external loader "failed to download segment[0]"

Why do I get an "failed to download Segment[0]" error when using a custom external loader in STM32CubeProgrammer version 2.7.0 or higher? The trace shown below is only an example, some values may vary, but the main point is that an error is raised (a...

How to use STM32U5 with FreeRTOS™ in tickless mode

Introduction In this article, we cover the needed steps to use the FreeRTOS™ in tickless mode, specifically entering in STOP2 low-power mode with the STM32U5. In this example, we use the X-CUBE-FREERTOS™ pack with the LPUART and EXTI as the wake up ...

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How does the ThreadX Semaphore work

ThreadX provides 32-bit counting semaphores that range in value between 0 and 4,294,967,295. There are two operations for counting semaphores: tx_semaphore_get and tx_semaphore_put. The get operation decreases the semaphore by one. If the semaphore i...

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How to reach 480MHz for STM32H7xx MCUs

You can reach 480MHz only for the following STM32H7 part numbers:  STM32H747/757 STM32H745/755 STM32H743/753STM32H742STM32H750 Note: For some parts, you need to check the maximum frequency from the datasheet.This is not enough! you also need to check...

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Foued_KH by ST Employee
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