STM32 MCUs Products

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QSPI unexpected clock behavior STM32H723VGTx

Dear Community,for my application I use the STM32H723VGTx where I'm using the OSPI interface as a SPI and QSPI to control a external sensor (MCU SPI master, sensor SPI slave). Now I face some issues with this communication interface, for debugging re...

Screenshot_20230710_061705.png Screenshot_20230710_063602.png Screenshot_20230710_061552.png

Uploading option bytes over DFU

Hi, I have a custom board using STM32G431CBU6. I am using `dfu-util` to upload firmware and option bytes. I don't have any problem reading/writing flash area with DFU, and I can read the Option Bytes area with DFU, but when I try to upload a valid op...

USB not working in hard fault handler

I am trying to dump stack trace from hard fault handler using usb, but the usb not working in hardfault handler.Any one please help me to know why usb not working in  hard fault handler, if there is a way to use usb in hard fault handler

Anand m by Associate II
  • 2369 Views
  • 8 replies
  • 4 kudos

variable phase shift between two PWM signals

Hi,I am trying to create to PWM outputs with a variable phase shift between them. They are of fixed frequency, 50% duty and exactly the same shape but with variable phase shift. I need to dynamically change the phase shift between them as a control p...

mosiTX by Associate
  • 1008 Views
  • 2 replies
  • 1 kudos

STM32G051F8P6 GPIO state during reset

Hello,I have some strange behavior with a circuit.  My understanding is that the GPIO should be configured as an input at power up, however, I am seeing a brief flash on an LED during power up and Power down (images attached showing circuit and the 3...

troper by Associate
  • 1030 Views
  • 0 replies
  • 0 kudos

Resolved! STM32WL55 Dual core debug problem

Hellofriends, I am trying to make a dual core example on the Wio-E5 STM32WLE5JC Module. I made all the settings as in this video.  However, only CM4 works when debugging. CM0PLUS is not working and I am getting this error Target unknown error 32Error...

FAlpa.1 by Associate II
  • 1095 Views
  • 2 replies
  • 2 kudos

bug with USB_CHEP_RXTXBD count on stm32H5

Hi, I made an asm soft for the H5 (works well with H7,G4,G0,F7,F4,F0). That software configure the stm32H5 into an USB CDC device. When my frequency of my main clock, apb1 and apb2 is below 220 MHz, my software works well but when i put my main clock...

Nnabb.1 by Associate II
  • 902 Views
  • 1 replies
  • 0 kudos

CMSIS drives for STM32H5

Hello,For the STM32U5 there is a full collection of CMSIS compliant drivers. Will such drivers be provided for the H5 (in particular USB and Ethernet) and if so, does ST have an estimate of in what time frame?I'm trying to determine if I will need to...

Scribe by Associate II
  • 2063 Views
  • 6 replies
  • 3 kudos

STM32F103 USB CDC TX Error Issue.

If the Sub device is connected as below, the USB CDC TX output of the Main device does not work.Please refer to the information below.I don't know the reason.    

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seonmin by Associate
  • 1804 Views
  • 6 replies
  • 0 kudos