STM32 MCUs Products

UART transmit DMA, receive interrupt

Hello dear friends,I use F4 series MCUs. I am looking to send UART data via DMA and receive data in interrupt. How can I reach this goal? I am able to send data via DMA and receive data in interrupt, but the problem is in simultaneous use of DMA for ...

How to convert 16-bit Timer to 32-bit?

Hello everyone,I'm using 4 timers of a stm32 nucleo board to count the increments in encoder mode. 2 timers are 16 bit and 2 others are 32 bit. The increments can be between -1,000,000,000 and +1,000,000,000.With 32 bit timers, there is no problem be...

SMBUS works with STM32F401 but fails with STM32F446

Hi all, I connect to a BMS board (TI BQ4050) using the HAL SMBUS driver.In my old platform, STM32F401, I can read registers from the BMS. Somehow, identical code on a STM32F446 fails half way through the read transaction (HAL_SMBUS_Master_Receive_IT)...

Why STM uses HAL?

Hello!Can anybody explain why STM use HAL and what is the difference and hierarchy between low layer API, CMSIS, HAL, SPL ?I always worked with just header files, but now all distributes API and I cant construct these API and their necessary in my he...

How to enable external RAM using SDRAM on STM32F429?

Hi,I'm new to STM microcontrollers.I was wondering if you could help me with running external ram IS42S16400 on STM32F429 using SDRAM interface.I'm attaching my project.Thanks a lot for your help :)

Which guidelines should I follow to write C++ code for STM32? (please do not evangelise me on not using C++ on micro controllers)

STM32f429: problem with using external SDRAM as an additional data memory

Hi,I can read/write an external sdram using fmc in stm32f429. But working with address and read/write functions is not proper for my purpose. I want to introduce external sdram as if internal sram is clearly extended and whenever I define a big varia...