STM32 MCUs Products

State when no settings are made in GPIO pin

Hello,​For example, i do not set any settings in PE10 pin. (Reset state)What state is PE10 pin?​Will the state of PE10 be floating or Pull down?(I don't use pull down resistor.)​​Best regards.​​​

Has anyone successfully used an SD card with STM32L471RGT6?

I have followed the directions below but keep getting failure to create FS. https://community.st.com/s/article/how-to-create-a-file-system-on-a-sd-card-using-stm32bubeide

Which STM32 MCU series have 6 UART connectivity?

I want to know which stm32 series have 6 uarts interface?

UART communication between Arduino and Nucleo-F411RE

I am trying to establish Serial communication between Arduino and Nucleo-f411re,I have connected the TX of Arduino to PA10 (UART 1 RX) of the Nucleo, I have tried using a voltage divider also but t did not workNucleo code#include "stm32f4xx.h" ...

STM32F446RE UART Tx DMA: The tx buffer gets mixed up

Hello all,I am very lost and would appreciate any advice. Currently, my final goal is to send an ADC buffer using HAL_UART_Transmit_DMA. But I am stuck on transferring a chronologically ordered array starting from 240 - 289. #define ADC_BUF_LEN 50uin...

How to control one STM32 using another STM32 via UART/USART?

I am trying to do control one STM32-L476RG using another STM32-L476RG via UART/USART. For now, I would like to turn on the LED of the "slave" STM32 using UART from the "master" STM32. Is that possible? If so, how? Thanks.

How to wakeup from STOP mode by using RTC and EXTI?

I'm using an STM32L051R8 in STOP mode with a 32.768KHz external crystal (LSE) that drives the RTC.I have set the RTC to generate periodic wakeup interrupts every X seconds, It's working.But I also want to wakeup using the external interrupt, whenever...

Temperature sensor TSYS01 on STM32U575I-EV

Hello, I'm trying to implement the temperature sensor TSYS01 on STM32U575I-EV.The datasheet of the sensor tells to reset the sensor first so I'm trying to do this like this:HAL_I2C_Master_Transmit(&hi2c2, 0x77 << 1, 0x1E, 1, HAL_MAX_DELAY);0x77 << 1 ...

Hello, I bought a new Stm32f746g_DISCO board and loaded the same code that has been running on 2 other boards for 2 years. With the new board, I load the code and everything is ok, but when I disconnect and reconnect the power supply, the display is ok, b

External Power supply for STEVAL-STWINKT1B

I wanted to know if there was any external power supply available to power the  STEVAL-STWINKT1B board instead of giving it power through the laptop or the provided battery pack. I wanted to implement it in an industrial setup and keep it on for the ...