STM32 MCUs Products

Wakeup from standby with RTC is causing losing time accuracy

Hello,I am using STM32L073V8T MCU, STM32CubeIDE. My application needs low power consumotion. When some events occurs, MCU move to standby. Than it waits new event for waking up. In other words, my application periodically check new event. After goin...

Hi, I am trying to connect ESP8266 module to STM32F429ZI so I am wondering if (and which) transmit pins of UART transmit max voltage of 3.3V (not 5V)? Thanks in advance!

Hello. When I use external crystals, I have a low frequency (2Hz) disturbance on PWM outputs. This disturbance also appear on SWDIO & SWCLK pins. But everything is ok with internal oscillator. The MCU is STM32f401RBT6. Thank you for your help.

The first image is PWM output when using internal oscillator & The second image is PWM output when using external crystal.

Hardfault (Usage Fault INVSTATE) on STM32H743 - how can I find the position where the fault happened?

I have a system with several SPIs and logging of data to SD Card. During a test which logged data over night the system ran into a Hard Fault (INVSTATE) after some hours. My questions:What is the reason for an INVSTATE Hard Fault? How can I detect, ...

Issue with microseconds delay with timer

Hi,we are using stm32f745xx and bellow are our configurations.we are using total 6 timers, out of which we are using TIM6 to generate 50us interrupt.htim6.Instance = TIM6;htim6.Init.Prescaler = 1;htim6.Init.CounterMode = TIM_COUNTERMODE_UP;htim6.Init...

I2C HAL sensor reading

Hi,I am using HDC1010 temperature and humidity sensor with STM32F103VET mcu. I am trying to read the sensor temperatre and humidity data, but i always get "0" value from sensör. My project code is below. Any advise ?/* USER CODE BEGIN Header */ /** ...

My HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) function is not being called?

I am using UART2 on STM32F407VG-DISC1, my HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) function is never called.