STM32 MCUs Products

STM32H743ZI2 TIM2 which clock source?

HelloI have configured TIM2 to throw an interrupt every 10 ms. Looking at APB1 Timer clocks clocks in the clock configuration, a prescaler of 199 with AutoReload set to 9999 should call the interrupt every 10ms. In reality the interrupt is called eve...

Error when use printf UART

hi everyoneuse printf in UART, i add in file main.c#include <stdio.h>//--------------#ifdef __GNUC__#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)#else#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)#endif //------------PUTCHAR_PROTOTYPE{ HAL...

Problem trying to compile RTC functionality on STM32F405

Hello,I am trying to get my RTC module working working, I have setup everything using the stm32cubemx, so far all my peripherals are working but I seem to have an issue trying to setup my RTC which is a totally new experience for me using the STM32cu...

Not able to trigger DMA using GPIO input pin in STM32G030K8.

I have to generate a DMA request using GPIO input pin to change the polarity bit of my TIMER which I'm using as PWM(initial polarity is set to HIGH) to LOW which will change by setting the polarity bit to 1. Whenever the GPIO input pin get a rising e...

Hi Team, I am working on stm32f769 board, as i am trying to test sdram. In my project i need to test sdram . Can you please guide me further. In the root terminal, what is the node path. like /dev/i2c[for i2c ]

STM32H743 / STM32H750 RTC BUG - hour keep counting above 23

Hi,  What could be possibly wrong to make the RTC hour keep count up above 23 hour. With some boards it works correctly, going to 00 from 23. but some other keep count up 24, 25...  How is that possible? There is any configuration to do that?

Error when use prinf in UART

when i use HAL_UART_Transmit(&huart1, u8_TxBuff, sizeof(u8_TxBuff),100); then reset stm32 workswhen i use printf /* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : m...

after calling __set_MSP the local variables get corrupted

Hello,First, I am sharing some basic information.The target - STM32G0, compiler Keil C11.I am trying to jump from a Bootloader to an application. The scenario is very frequent and there are many questions about that on the web, but unfortunately I fa...