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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"No STM32 target found" on consumer device

I'm trying to use a ST-LINKv2 to re-program a consumer device that I know has an STM32 of some kind inside (fairly sure it's a STM32L-something). I found four headers on the board that a continuity tester has shown to be Vdd, Vcc, SCLK, and SWDIO.Con...

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Jonah by Associate II
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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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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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