STM32 MCUs Embedded software

Ask questions and find answers on STM32Cube packages, including HAL, LL and middleware, and expansion software.

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Resolved! USB device stack - STM32U5xx

Hello, I wonder if it exists a basic example or application note illustrating how to configure the USB_OTG peripheral (host mode) of Stm32u5xx mcu as virtual port."Device USB" is anymore available under Middleware in STM32CubeMx and the USBx stack is...

ilariari by Associate II
  • 1939 Views
  • 2 replies
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STM32F429IIT6 stuck on bootloader

Hi, I'm using STM32F429 to build a prototype. I found my board couldn't enter the USB bootloader mode. What I found was: Connect Boot0 to 3.3V via 100k ohm resistor, no pull down on Boot0. The MCU could enter USB bootloader mode properly. I can see a...

YKuo.1 by Associate II
  • 713 Views
  • 0 replies
  • 1 kudos

I2C. address is not transmitted after START condition

Hi, I'm trying to write i2c ISR by myself with LL. But after START condition address don't transfer(I see it in my oscilloscope), although I write to I2C1->DR address of slave and read reference manual with attention for proper handling.I generate in...

FSky.1 by Associate II
  • 1334 Views
  • 5 replies
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virtual com problems with STM32L4P5VGT6

Hi,I prototype the use the USB virtual com port on a STM32F407 Discovery board andit worked without any problem. I then repeated the exercise on our custom board(STM32L4P5VGT6), the first stage was just transmitting it worked without aproblem. Now ad...

kweisi50 by Associate II
  • 861 Views
  • 3 replies
  • 0 kudos

UART don't initialize

Hello,I'm working on a NucleoF746ZG, for the past week i'm unable to communicate with board tought UART.The problem seems to be that HAL_UART_Init(&huartX) return 0 which means that the UART is not initialized.I tried to check if it was a hardware pr...

JAgue.1 by Associate II
  • 1701 Views
  • 4 replies
  • 1 kudos

Resolved! STM32H7B0VBT6: Can I use USB HS at VDD=1.8V?

Hello,We are designing a board with an STM32H7B0VBT6 and USB3320 USB HS-transceiver. The MCU will run at VDD=1.8V. In AN5307, p. 11 it is written:"On some packages neither the VDD33USB pin, nor the VDD50USB pin are available, it is the VDD pin which ...

JWeij.2 by Associate
  • 757 Views
  • 1 replies
  • 0 kudos

TouchGFX 4.21 + Azure RTOS on STM32F7

Has anyone been able to convert a TouchGFX project from FreeRTOS to Azure RTOS by simply using the freeRTOS compatiblity module provided, then changing the oswrapper files to use non-CMSIS calls (pure FreeRTOS API) and no other changes? This would b...

keymaker by Associate
  • 727 Views
  • 0 replies
  • 0 kudos