STM32 MCUs Boards and hardware tools

Ask questions and find answers on STM32 hardware set-ups, including schematic-related challenges, debugging probes, power configurations, and more.

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Resolved! Error in initializing ST-Link device. Reason: (-1) Unknown. Please check power and cabling to target.

When I tried to debug my STM32F303RE nucleo board with Truestudio , I get this messages from console:When I get this message , I was working on EXTI interrupts at register levelSTMicroelectronics ST-LINK GDB server. Version 5.1.0 Copyright (c) 2018, ...

AAdin.1 by Associate II
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Resolved! I got two STM32H735 Discovery kits (STM32H735G-DK) and broke them somehow by connecting both via USB at the same time. A) What causes these problems and what can be done to avoid them? B) What can be done to revive the boards?

I performed the following steps:1) Set JP7 to STLK2) Connect USB -> Demo starts correctly3) Flash a simple self-written code (sets LED to state of user-button) via OpenOCD -> ST-Link works4) Flash a second self-written code (sets both LED to state of...

KNeus.1 by Associate
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  • 3 replies
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Resolved! NJTRST (PB4) pin for stm32l431

Hello, thereI was not able to use the NJTRST (PB4) pin as a general GPIO input pin. I googled and other people having the same issue using the macro: __HAL_AFIO_REMAP_SWJ_NONJTRST()to remap the NJTRST pin. Yet, this macro is not available for the STM...

ELin.4 by Associate II
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  • 7 replies
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Destroy the MCU and ST-Link v3

I destroyed the MCU(STM32H743ZIT6) and ST-Link V3.But I don't know what happen.When I connect the ST-LinkV3 with the Laptop, then the ST-Link and MCU was broken.So, if you know what happen, please teach for me.

RTaka.3 by Associate II
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  • 14 replies
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Resolved! NUCLEOF303 dev board as ST-link programmer

Hello,can I use the NUCLEO-F303K8 dev board as ST-link SWD programmer for external MCU? There is a SWD connector on the board (not populated), but it seems that it is for input programming rather than output. Am I right?Link:https://www.st.com/conten...

Juraj1 by Associate
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  • 2 replies
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