STM32 MCUs Embedded software

What connector and version of USB is preferred for the STM32L552 MCU? USB C, micro B USB, etc...?

We are building a test card for a host that embeds the STM32L552 microcontroller in it. The data lines are broken out and VDDUSB is tied to the same voltage as the VDD for the MCU. Do we need to use VBUS in this case? Please advise.

USB MCU not recogniced as a keyboard

Hi! I'm really new to this, so sorry if this is a dumb question, but I'm currently trying to make my STM32nucleo-F103RB work as a keyboard, i've followed a few tutorials but I have a problem when connecting my MCU because when I connect it to my lapt...

Jump to bootloade from application on STM32G48xx and use DFU

I'm stuck on performing jump to bootloader in order to update firmware via DFU. MCU is STM32G484. On empty project I configured the clock for USB, my code is: int main(void) { HAL_Init(); SystemClock_Config(); /* Initialize all configured peri...

The correct way to scale main clock frequency when using Azure RTOS ThreadX

For a specific application, I’d like to decrease the main clock (MSI in this case) in runtime. Frequency scaling itself is not an issue but after scaling, Threadx timings are not correct anymore (since TX_TIMER_TICKS_PER_SECOND is not correct anymore...

USB HID right click button

Hello, I am designing board with stm32f723 with 2 USB. On one side i have mouse attached to STM on other side STM attached to PC. When i transfer report to PC x, y and left click button works fine but i cant make right click. Bellow is the struct of...

Issue related to application start address in bootloader

Hello everyone,I am facing an isssue related to Bootloader project in STM32F407VGT6. My bootloader placed at start address of internal flash memory 0x0800 0000 and occupied 16kB. My application's size is 74kB. If the application is placed at 0x0806 0...

Hello, we are using STM32H753 with USB3343 PHY. All boards are working fine but one of them need a 2.5ms. delay before enter USB_CoreReset() other case the CSRST bit in GRSTCTL register remain pending. All board power-up seems equal. Any ideas?

Erasing and writing flash by Bootloader fails

Hi,I am trying to use the ROM Bootloader on an STM32G071 Nucleo to upload code to the board. However erasing and writing to flash is not acknowledged by the G071. Other commands like reading from memory are acknowledged and return the correct data.I ...

Can I use both USB of STM32F723 as HID ?

I have STM32F723-DISCO board and I am designing project with two USB. First USB_HS is set as HOST and on it is attached mouse. Second USB_FS is set as Device and is attached to PC. The idea is to transfer descriptors from the mouse thru STM32 to PC. ...