STM32 MCUs Products

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Forum Posts

Wake STM32L4xx from SHUTDOWN using RTC Alarm?

I'm currently using the STM32L4R9I-EVAL board and trying to prototype an application where the microcontroller will need to be in lowest power (i.e. SHUTDOWN) mode for several days or weeks and then wake up to perform an action. I can get the the mi...

Interpretation of SPI communication error

Hello,Still struggling with my SPI setup.See https://community.st.com/s/feed/0D53W000006r3jX for details on SPI and GPIO settings.On the exact same setup I have sometimes a correct communication and trace is :SCK in yellow, MISO in blue. I send bytes...

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Gpeti by Senior II
  • 728 Views
  • 4 replies
  • 0 kudos

How to use flash loader demonstrator to program STM32F427VI

Hi all,I have the STM32F427VI connected using serial RS232 cable.I downlaoded the latest version of the Flash Loader and the parameters are Even/115200/Disabled/8I tried using jumper on boot 0, boot 1 and boot 0&1 but I can't connect to the MCU.Any i...

As.51 by Associate III
  • 747 Views
  • 3 replies
  • 0 kudos

stereo I2S communication

I am using STM32F103C for mcu and SPH0645 model for microphone.When I connect only one microphone and communicate with I2S it works!then I wanted to do make stereoSo I connected two microphones one with SEL=0 and the other with SEL=1However, WS gives...

JAn.1610 by Associate II
  • 1209 Views
  • 7 replies
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WWDG reset failure In the Self Test library

MCU : STM32H743ZTi OS : RTEMS STL: en.x-cube-classb-v2-3-0STL code integrated with RTEMS os plat form and STL test initiated from boot start area. WWDG test is working as expected until RTC and HAL_PWR_EnableBkUpAccess is disable. After enabling the ...

KVija by Associate II
  • 897 Views
  • 3 replies
  • 0 kudos

Resolved! STM32F401 ADC not getting all the values

Hi,First time poster here, I have looked around for answers and didn't find anything that could help me. I also tried to reach out to ST but they doesn't want to help and they are throwing me to local suppliers instead.So here's the thing, the ADC is...

0693W000001pdSZQAY.png 0693W000001pdS5QAI.png
SBeno.1 by Associate II
  • 2594 Views
  • 10 replies
  • 0 kudos