STM32 MCUs Products

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Resolved! STM32H7 USB CDC not showing up as a port

I'm trying to get a USB virtial COM Port working on the STM32 Nucleo-H745ZI-Q. I've generated some minimal code to initialize the device on PA11 and PA12 and have tried connecting a four pin USB-C breakout board to wire GND, DP, DM, and U5V, as well ...

AC3 by Associate
  • 560 Views
  • 3 replies
  • 2 kudos

Identifying Fake STM32

Split from Black Pill: Debugging STM32F103RCT6 in Keil Fails to Enter main()Hi @mƎALLEm  , just about your "not genuine" statement:>- No "ARM " markingSame here on a F103 by STM , should be genuine, because its st-link on a F3-discovery board !>- The...

AScha.3 by Super User
  • 746 Views
  • 4 replies
  • 1 kudos

Resolved! [solved]STM32G RTC sets to some value afterr reset

Hello,I have an application which I would like to build on to of cubeMX generated HAL driver, but I came across strange issue that I am unable to keep RTC value on reset. Drivers part is as generated with cube using freeRTOS. system reset is triggere...

lauris by Associate III
  • 325 Views
  • 1 replies
  • 1 kudos

How to freeze IWDG without resetting MCU?

Hi,I am working on STM32 MCU, in my application once I start IWDG, based on certain event I want to freeze IWDG.Since my application is running, I don't want to reboot MCU.Once event processed, I want to continue IWDG without resetting MCU.Can anyone...

Utsavi by Associate
  • 178 Views
  • 1 replies
  • 0 kudos

Resolved! bootloader for STM32G474QET6 - usable UART pins?

I am trying to use the bootloader of the STM32G474QET6 with USART to program my microcontroller. I have multiple questions regarding this but the first one is more about hardware. I have found in AN2606 that for the bootloader I can only use one of t...

EliazLB_0-1744100551282.png EliazLB_1-1744100662917.png
EliazLB by Associate III
  • 511 Views
  • 7 replies
  • 6 kudos

Resolved! Timer controlled GPDMA write to GPIO

Hi.In AN5593, How to use the GPDMA for STM32 MCUs, on page 31, it says:"For some application needs, a timer request to GPDMA can be used to initiate a data transfer not involving timerregisters read/write, but other memory-mapped location, like for m...