STM32 MCUs Products

stm32f4-disco USART3 st link baudrate switch problem

Dear Sirs or Madames,I have a stm32f4-disco board with an adafruit winc1500 wifi shield. The firmware update and the update of the ssl certificates for the winc1500 are carried out via a serial bridge. While updating I have to switch a few times USAR...

I already have the board!

Hi, i am using STM32F103RB micro controller. i want to use and print float numbers in atollic true studio. i have implemented all solutions available on google. they are not working. please guide me with some good tutorial.

Independent watchdog timer makes my MCU unstable

Hello,Here is my source code:  void WatchDog(void){   NVIC_InitTypeDef nvicStructure; NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);   nvicStructure.NVIC_IRQChannel = WWDG_IRQn; nvicStructure.NVIC_IRQChannelPreemptionPriority = 1; nvicSt...

STM32 L522C . I want to get chip to sleep mode and wake it up by time interrupt of 32KHz clock . How do I?

I'm about to start embedded programming and have an STM32f103C8T6 ARM-Coretex-M3 board to get started with. I'm also a C++ programmer and want to use that language to program a project to blink the LED of that board as my first embedded task.

Hi all, Apart from the board and two machines (Windows and Linux) I have also an MB-102 breadboard and a bunch of cables in hands. Firstly I wanted to make use of this tutorial for the task above but it's dealing with NUCLEO-L476RG that I lack for th...

I missed the confirmation E-Mail for the session.

Hello ST.I have missed the confirmation mail but I do pretend to join the session.My Board's buy is handled be my company's sales and should be invited soon.Please add my to the 11/3 session again.Thanks,Hagay

DMA UART TX single transfer

Hello, I have an stm32F103, I would like to start using DMA to transfer data from memory to TX pin, in circular mode it works fine but when I switch to normal mode it works only once, I cannot use the debug function since I'm not using a ST-Link, so ...

How does HAL_UART_Transmit_IT() triggered Interrupt handler HAL_UART_IRQHandler() for data sending?

HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size){ /* Check that a Tx process is not already ongoing */ if (huart->gState == HAL_UART_STATE_READY) {  if ((pData == NULL) || (Size == 0U))  {   return HAL_...