STM32 MCUs Products

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_...

How to identify a genuine STM32 MCU and where to purchase genuine STM32 MCU ?

I am new to STM32, recently came across the compatibility of none genuine STM32 MCU issues.For example, I found the STM32F103C8T6 chip link at HERE, which one is genuine STM32 MCU in this case ?Secondly, where can I find a trusted vendors that supply...

STM32 Timer auto-reload preload

The conditions to reproduce: Here is my real life example that I would like to solve:I am developing an application on an stm32f411RET which needs to dynamically change the period of two PWM's.The two PWM's need to be synced and have exactly the sam...

Hardware Timer usage to get the time elapsed

Hi STM Community,I have just started to work on the STM32L4S5 based microcontroller and I wanted to use Hardware timer to get the time elapsed between two instructions, I generated a code using STM32CubeMX for Timer3 but it gave me only the initializ...