Two board I2C communication
Iam Using 2 STM32F407VGT6 board one as master and another board as slave from Master side it is Transmitting but slave is showing the Bus error both Master and slave iam using in the inturrept mode
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.
Forum Posts
Custom Board Review Based on MB997E .
Hi ST Community,I have developed a custom board based on the MB997E evaluation board as a reference design.1. Could you please help me review my custom board design and schematic to identify any possible mistakes.2. In my custom design, I have also a...
Nucleo-L433RC-P board - difficulty with flashing and debugging
I am using the Nucleo-L433RC-P board but having difficulty flashing and debugging. 9 out of 10 times I get the following error...STMicroelectronics ST-LINK GDB server. Version 7.11.0 Copyright (c) 2025, STMicroelectronics. All rights reserved. Star...
STLINK-V3SET Out of Stock
It seems that the STLINK-V3SET is out of stock almost everywhere. Is there any information on when it will be back in stock?Thanks
Resolved! LDO Power Supply for STM32H757A
Hello everyone,I've noticed that several users have experienced issues related to the LDO power supply setup for the STM32H757A. I’m currently working on a design using this MCU in LDO mode, and I’d like to confirm whether my power supply implementat...
Resolved! Blink User LED on Nucleo-F439ZI
I want to let the user LEDs blinken, however it is not working. When I run the code the LD4(COM) is blinking red and green. after the run the LD4(COM) is red the whole time and the user LEDs do not blink. Should the LD4(COM) be lighting green?
Resolved! STM32H7471-DISCO Schematic
Hi Community,I am about to work on STM32H7471-DISCO Development BoardCan you provide Schematic of this Board.I found all the technical documents from https://www.st.com/en/evaluation-tools/stm32h747i-disco.html# but I do not found board schematic.
Resolved! Not able to detect STM32H743 in MATLAB simulink
Hi, I am using Nucleo-144 boards in my project where I have changed the clock source for STLINK IC to external crystal using STLINK firmware upgrade tool. Before it was HSI/2 =8MHz. Now I am trying to revert the configuration back to 8MHz but I am no...
Resolved! Nucleo-L433RC-P: How to access STLINK_RX pin
I am using the Nucleo-L433RC-P board and want to use LPUART RX on pin PA3.But the schematic shows that pin PA3 is used for STLINK_RX. What is STLINK_RX / STLINK_TX used for ?Can I remove SB75 to access the pin or would this stop STLINK from working ...
stlink-V3pwr and X-NUCLEO-LPMO01A inconsistent & inaccurate current readings
stlink-V3pwr current ： 21mA X-NUCLEO-LPMO01A current ：17mA actual current ： 15mA