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

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 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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How to connect a J-Link debug probe to the Nucleo-WB55RG

1. Introduction Onboard, the NUCLEO-WB55RG includes a ST-LINK/V2-1 debugger/programmer with USB reenumeration capability: mass storage, virtual COM port and debug port.The ST-LINK/V2 is an in-circuit debugger and programmer for the STM8 and STM32 mic...

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How does the ThreadX Mutex work on STM32 part 2

Welcome to the second part of the article covering how to use the Mutex in the ThreadX using STM32 (Part 1 available here). This will cover the code editing and debugging. 1. Code Editing and debugging Using the previously code generated, open Core\S...

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How to change the readout protection on STM32F4

Introduction STM32F4 microcontrollers offer three levels of readout protection: level 0 (no protection), level 1 (Flash memory, backup SRAM, and backup registers protected), and level 2 (same as level 1, but with permanent protection by locking the o...

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How to change the Read Out Protection on STM32F7

Introduction STM32F7 microcontrollers offer three levels of read-out protection: level 0 (no protection), level 1 (Flash memory, backup SRAM, and backup registers protected), and level 2 (same as level 1, but with permanent protection by locking the ...

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How to change the Read Out Protection on STM32H7

Introduction STM32H7 microcontrollers offer three levels of read-out protection: level 0 (no protection), level 1 (Flash memory, backup SRAM, and backup registers protected), and level 2 (same as level 1, but with permanent protection by locking the ...

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How to change the Read Out protection on STM32F3

Introduction STM32F3 microcontrollers offer three levels of read-out protection: level 0 (no protection), level 1 (Flash memory, backup SRAM, and backup registers protected), and level 2 (same as level 1, but with permanent protection by locking the ...

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