STM32 MCUs Products

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Forum Posts

Jump to Freertos application

Hi all,I have developed a bootloader for STM32F412, the bootloader works perfectly, however, when I change the user app to be FreeRTOS based, it ceases to work.I added a blink led in the Hard Fault in both the bootloader and app, but both were not tr...

Qusai by Associate II
  • 1026 Views
  • 12 replies
  • 1 kudos

Resolved! Designing a custom board with STM32H725ZGT3

I designed a custom board using the STM32H725ZGT3. The references I followed include the datasheet, application note AN5419, and the STM32H745ZIT6 Nucleo board design, among others. After powering up the board, I was able to connect to it via ST-Link...

Ironman by Associate II
  • 285 Views
  • 4 replies
  • 1 kudos

UART DMA not transmitting data properly

Hi, I am working on a project and having the following problem:My UART DMA is not working. I am transmitting a string, that should be visible in the terminal but it is not. The TX complete callback function is being triggered, so it looks like it wor...

fa31_0-1752840534623.png Screenshot 2025-07-18 140925.png
fa31 by Associate III
  • 583 Views
  • 11 replies
  • 5 kudos

VREFBUF Enable Problem

Hi,I am working on STM32G474CET mcu. I am trying to use VREFBUFF voltage for ADC channel referance voltage. My configuration looks like the following. When i run the code, it stuck in the HAL_SYSCFG_EnableVREFBUF function. Whenever i check the 'ticks...

gunccc_0-1691414511024.png
gunccc by Associate II
  • 3322 Views
  • 5 replies
  • 2 kudos

STM32G474 FDCAN BitTiming Register values?

Hello All,I got Classic CAN running on the FDCAN3 module of STM32G474CE device using MXCube and other example projects for STM32G474 devices.Problem is, all these example codes have a fixed baud rate of 1Mbps. My application requires thebaud rate be...

ma.alam9 by Associate III
  • 6887 Views
  • 4 replies
  • 3 kudos

Nucleo-U575zi-Q EXTI GPIO IRQ with stop 3 sleep mode

Hi ST Community, I am currently trying to evaluate if I can use EXTI GPIO IRQ handlers (function executed at USER BUTTON press) in combination with the STOP3 sleep mode.Firstly, I would like to request, if this is supported by the u5 CPU. Based on th...

akarner by Associate
  • 173 Views
  • 2 replies
  • 0 kudos

Ethernet on custom board with STM32H730

I have a custom board with an STM32H730 and a LAN8710A PHY, operated in RMII mode.  The board is a new design, based on an older board but with some differences (the older board has an STM32H750).  My short-term goal is to prove out the hardware -- a...

DanS by Associate
  • 2576 Views
  • 4 replies
  • 1 kudos