STM32 MCUs Embedded software

Why 2 SD cards with the same characteristics won't work the same way on SDMMC1 peripheral (STM32H743ZI)

Hello everyone, I am facing a strange issue. I am working with a nucleo-h743ZI2 biard using SDMMC1with fatfs to write data on µSD card. I have 2 SD card with apparently the same characteristics : 4GB, SDHC, class 10. SDMMC is set in 1 bit mode (4 bi...

CAN TX Mailbox errors defines and comments mismatch

CAN communication with HAL library: error codes in stm32f1xx_hal_can.h inconsistent, TX Mailbox errors defines and comments mismatch.Can this be corrected in subsequent versions?/** @defgroup CAN_Error_Code CAN Error Code * @{ */........................

Delay needed before executing newly written code

I am using a STM32F401 MCU and STM32 HAL library. I am writing a bootloader that will update an application that is located into a different sector. The sequence is this:/* Unlock the flash */HAL_FLASH_Unlock();/* Erase the sector that will hold the ...

Ethernet program works on developement board but not on custom board

Hello I have STM32F779I- Eval developement board . My program works on developement board but not on my custom board with same controller (STM32F779BI) ( My pin configuration are same for both. ( MII configuration ) for both I have made jumper setti...

How to change PWM polarity for different channels on the TIMER1 of STM32 using HAL?

H7 MCU usb OTG host mode

I am using H7 MCU's usb OTG in host only mode. I try to directly power the VBus by on board 5V without power switch. That means VBUS is always on after power the board. Is it support by H7's USB OTG?

How to interface the FTDI USB device??

Hi, Everyone?I'm googling a couple of days to find clue of interfacing the FTDI USB device to my USB host service. But, I cannot find any solution like cool sparking water.​I'm using STM32F207VE with STM32CubeIDE. I know that FTDI does not use CDC se...