STM32 MCUs Products

STM32 I2C not receiving further bytes

Hello I am beginner to MCU, I have set STM32F407 Discovery as a master on I2C communication with nucleo STM32F446RE as a slave. PC host connected to the STM32F407 via UART. The code for the master ischar RecBuff [20]; while (1) { HAL_UART_Receiv...

I have 3 errors and I don't know what is the problem . I use Stm32h755ZIQ with 1MB of Ram and 2MB of Flash .

STM32H743ZI Nucleo 144, UART interrupt handling

Hello ST family, I'm working on STM32H743ZI chip for my project. I want to execute simple program which communicates with PC through RS232 UART with configuration of 9600 baud rate, 1 stop bit and no parity and No Fifo used. Functionality should be s...

Need help getting 1.8V SD card working on STM32H743

I have a new board design that interfaces an STM32H743 to a uSD card using 1.8V I/O. The SD Card is powered by 3.3V, and the card I am using supports the LVS mode of SD. I'm having a hard time trying to get the card up and running, and my searche...

Is it possible to dynamically switch between CDC class and DFU class during run time?

When module is powered up, communication takes place through CDC class and for firmware updates, DFU class is used.

HAL_SPI_ functions to read rc522 register have echo!

SDRAM W9812G6KH and STM32H732

Hello!​I have never created custom PCB with SDRAM before and I would like to clarify whether this memory will work with FMC.​Thank you very much!​

Bldc mechanical resistance

Hello i want to implement a variable mechanical resistance using a BLDC.​So for example the shaft of the motor is turned by an external force and the bldc tries to counteract the force to the tune of e.g. 100Watt.​Since the bldc acts like a generator...