STM32 MCUs Products

Ask questions, find answers, and share insights on STM32 products and their technical features.

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

stm32f091 rtc error

Hi. As you can see in the picture I haven't got the LSE crystal resonator so I have 40 Khz as RTC input. The datetime is not well calculated.How can I resolve the problem? Is there a way to have an affidable rtc whitout the resonator?

0690X000006CxyrQAC.png

My IWDG init (stm32_IwdgSetup(..)) halts – why?

Hi.I use the STM32F107 and shall implement the IWDG to supervise my SW.But my IWDG init-code (stm32_IwdgSetup(..)): 1) stops/halts the MCU in the "IWDG->KR = 0xCCCC" statement below 2) MCU never proceeds/advances from the "IWDG->KR = 0xCCCC" statemen...

Missing bytes in UART frame through dma

Hi,​I implemented a UART communication using the DMA feature on a STM32L4 microcontroller.DMA RxCallback is called on UART Idle line detection interrupt as I d'ont know the length of the incomming frame. The baudrate is 230400 and I receive a frame e...

Manon S by Associate II
  • 1170 Views
  • 4 replies
  • 0 kudos

How to sure LSI of stm32f103 started?

My product has a 5% chance of that LSI didn't start when system Power up. So IWDG not functional due to LSI missed.Here is my code to start LSI******************************LSI_CNT = 0; RCC_LSICmd(ENABLE); while( RCC_GetFlagStatus(RCC_FLAG_LSIRDY) =...

lzyos by Associate II
  • 804 Views
  • 2 replies
  • 0 kudos