STM32 MCUs Products

STM32L412: When I turn the reset (physical) switch, the µC jumps into the DFU bootloader, although it isn't supposed to

Hi there!I have a weird problem, where I'm a bit lost, probably also due to my limited knowledge of assembly. So I am trying to write a function (which is called using a very secret pattern) which sets a magic number and soft resets the microcontroll...

Hi , I use ST micro controller: STM32H743VIT6 1. I want to knew if the I/O pins are 5-Volt tolerant? 2. in the Datasheet i reed there is a I/O structure called FT. This structure can tolerate 5V. How VDD_FT in this structure get 5V?

Why does the I2C state remain in HAL_I2C_STATE_BUSY_TX when an access is completed.

I am doing a DMA based I2C transmit using HAL_I2C_Master_Transmit_DMA and am seeing an issue with the state of the I2C. The transfer completes as expected as confirmed using an oscilloscope on the pins. However, the state of the I2C gets switched to ...

SPI Communication with STM32G031 using HAL

Hello,I tried to configure the STM32G031K8 Nucleo Board using CubeMX to send a request to an attached sensor using SPI1. To my request (2 bytes) the sensor should answer with 4 bytes. I configured the data size to 8 bits and the clock parameters core...

how to generate random time series signal in stm32 and perform fft and compare its results

timer

I am using NUCLEO-H743ZI2. I am trying timer to generate pulse using TIM_OCMODE_TOGGLE channel 1. my timer clock is 100MHz, I set pre-scaler as 9 and channel 1 pulse as 9 as well. It seems it is difficult to get pulse, except I add more count on chan...

How do I prevent one ISR from interrupting another ISR that is in the process of reading the RTC? HAL_LOCK?

I'm working on my first large-ish C++ embedded program running on a STM32F413. Bare metal, no RTOS at least so far. The program reads data from a dozen or so UART and I2C sensors. All the UART sensors currently use DMA for TX and RX. When a compl...

Cable length limitation for SPI run at 40MHz ???

I had trouble to activate SPI communication with SPI in 40MHz frequency in 55cm long cable , even I modified output speed to "Very high speed" . Is any other register that I need to set to support high speed clock in long length cable ? 55cm long cab...