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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Forum Posts

ST-Link Virtual COM stops working

Posted on January 27, 2017 at 08:50Hi,I have a stm32469_disco board with ST-Link on it.I have a problem with the Virtual COM from the ST-Link: It stops working as soon as the embed-MSC is up.Is there a way to disable embed in the ST-Link firmware?#s...

Faulty Nucleo F446RE boards?

Posted on January 26, 2017 at 18:18Hello,I am having troubles with my project thats uses Nucleo F446RE development board. I have currently two pieces of this board at home neither of them working.The first board arrived with PA1 pin not working. I h...

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STM32 ST-Link Utility v4.0.0 gives message ''could not update the option bytes'' but option bytes updated

Posted on December 29, 2016 at 14:58Hello,I use ST-Link Utility v4.0.0 and STM32F103RC.CommandST-LINK_CLI.exe -c SWD -OB RDP=1gives message 'could not update the option bytes' but option bytes updated. And command returns an error code.GUI gives the...

STM32VLDiscovery ST-Link problem

Posted on December 15, 2016 at 14:20Hi all.Sorry for my english =(I'm writing espruino bootloader into my STM32VLDiscovery board, but process is failed. After this accident, computer shall not found device. Can I get original st-link firmware for st...

Resolved! Cortex M4 draining a lot of current.

Posted on December 24, 2016 at 02:00I'm doing a motor controller project, where I was using  STM32F446RET6 to learn how to work with an ARM processor. I designed the board myself.Without the microcontroller soldered the 3.3V LDO was working fine and...

Cannot download ST-Link Utility

Posted on June 23, 2016 at 22:12I'm on the ST-Link utility web page, but there's no download link. How do I download it?Same for the ST-Link USB drivers - what's going on?I tried multiple computers and different browsers. #st-link