STM32 MCUs Embedded software

Internal USB FS PHY data lines sometimes are floating inputs. - Solution?

Hi dear support people,floating CMOS inputs in general pose both serious hardware and software problems, as we all are quite aware of.Regardless, the D- line of the STM32H7 USB FS PHY (used as a USB device role) is floating, when the host USB cable i...

STM32G474 jump to ST Bootloader without Boot0 pin

Hi,I'm trying to boot to the system memory so I could use ST bootloader (USB-DFU in mind), but unfortunately not succeeded.I have a custom board with a STM32G474RE and another similar version with a STM32G473RB. I cannot use the PB8/Boot0 pin, cause ...

RTOS ThreadX with NetXDuo in CubeMX uses a lan8742 driver file called nx_stm32_phy_driver.c wherein the HAL calls have too many variables. Has this been reported?

The calls in particular are HAL_ETH_ReadPHYRegister and HAL_ETH_WritePHYRegister. In the HAL driver files, specifically stm32f7xx_hal_eth.c, these routines take 3 variables and not 4. For example, in the nx_stm32_phy_driver.c, the function for Read ...

I found a bug in HAL_RCC_OscConfig for stm32f2xx (file stm32f2xx_hal_rcc.c).

When this function is called with the OSC configured, e.g. from bootloader, it checks if the PLLM/N/P/Q in RCC PLLCFGR reg are the same as requested. That check fails, even if the parameters in the second config request are the same.Problem is locate...

STM32F723 USB HS FIFO arrangement

Hi,Sometimes (randomly) I encounter a problem in firmware, even though sometimes it works well for hours without any problem.The whole idea of the firmware is that it receives data over USB HS with DMA enabled and initiate a transfer over another int...

Hi, I am trying to use X-CUBE-USB-AUDIO with STM32F446RE MCU. I am stuck at 1 compiler error at line- USBD_AUDIO_InterruptTypeDef interrupt, for both playback and recording session. What should I do to remove this error?

AzureRTOS NetX STM32F407 Discovery compile errors

Hello,I am trying to create project with STM32F407/429 discovery and AzureRTOS and getting compile errors.Attached the cubemx project.The errors appear in KEIL, IAR and CubeIDE. (I tried same cubemx configuration for STM32H743ZI without any compile e...

Program STM32G030 by UART

I'm trying to program STM32G030 but I don't have a ST-LINK.I wonder is it possiable to program this chip through UART interface? There is a LED-BLINKING program programed by distributer in main flash memory. I have tried to pull BOOT0 to VCC and rese...