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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STLINK-V3MODS RTS/CTS -> RTS/DTR ?

Hello world :)I found STLINK-V3MODS extremely useful for automation testing (NuttX RTOS). I have ~50 different boards, some of them does not have on-board flashing capability, thus either JTAG/SWD or UART needs to be used.Most of the boards that use ...

CeDeROM by Associate III
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  • 3 replies
  • 2 kudos

Resolved! SPI on STM32G031

I'm attempting to configure SPI1 on an STM32G031.   However I must be missing something because there is no data being output.   I am trying setup SPI to transmit 16 bits at a time.  Any suggestions would be appreciated.   I'm running the uC at 64Mhz...

Resolved! SWO only works at 16MHz with STLINK-V3PWR

SWV 16MHz, SYSCLK 16Mhz = logging worksSWV 16MHz, SYSCLK 25Mhz = logs gibberish (expected)SWV 25MHz, SYSCLK 25Mhz = logs nothing at allSWV 48MHz, SYSCLK 48Mhz = logs nothing at allWhy would this be?It works with HSI 16MHz, so my wiring and configurat...

NateS by Associate III
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  • 8 replies
  • 4 kudos

STSW-LINK007 on FreeBSD

Hello world :)Trying to upgrade firmware on series of STLINK-V3MODS on FreeBSD, downloaded 3.16.9 package from [1], after running:java -jar STLinkUpgrade.jarI got error message "Platform not supported (freebsd)".Would it be possible to add support fo...

CeDeROM by Associate III
  • 558 Views
  • 6 replies
  • 0 kudos

STM32H735G-DK STM32 target not found

Hello,I have a Stm32h735g-dk card. I did some work and then the connection was broken. I don't know exactly why it happened later, but I didn't play with the pins, I just threw code with stlink via jumpers and stm32cube ide. Now every time I want to ...

WhatsApp Image 2025-08-21 at 09.18.48.jpeg WhatsApp Image 2025-08-21 at 09.20.39.jpeg
Yandas by Associate III
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  • 4 replies
  • 0 kudos

Stlink v3mods burning out

Hi,I am currently making a custom pcb that includes an stlink-v3mods in order to program two stm32's.I am encountering a problem in which the stlink keeps failing and drawing a large amount of current. I am struggling to understand why this could be?...

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Josh_W020 by Associate III
  • 392 Views
  • 7 replies
  • 1 kudos