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STM32H562 RTC problems

Hello everyone. How are you?I created a test program based on https://community.st.com/t5/stm32-mcus/how-to-calibrate-the-stm32-s-real-time-clock-rtc/ta-p/744958 I calibrated and compared the signal (512Hz @ PB2) with an oscilloscope, resulting in an...

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STM32U5 DCMI DMA is not working as expected.

Hello,    We have developed an image capturing application successfully based on STM32H7xxxx and OV7725 camera. We are now targeting to port the application to target STM32U5xxxx with the same camera. But it looks the DMA doesn't works as expected. T...

DCMI GPIO.jpg DCMI NVIC.jpg DCMI parameters.jpg GPDMA1 channels.jpg

toolchain installation failures

Hi.  I have a newly purchased NUCLEO-U575ZI-Q.  I followed the instructions here to install the toolchain on Windows 11:https://www.st.com/en/evaluation-tools/nucleo-u575zi-q.html#documentationhttps://wiki.st.com/stm32mcu/wiki/STM32StepByStep:Step1_T...

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mdeis by Associate
  • 67 Views
  • 7 replies
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STOP1 UART Wakeup 115200

Post edited by ST moderator to be inline with the community rules for the code sharing. In next time please use </> button to paste your code and a linker script content. Please read this post: How to insert source code. I have a STM32L433RCT3 and I'...

MVeen.1 by Associate II
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  • 3 replies
  • 0 kudos

RTC LSE not working with VBAT on poweroff

I am working on an STM32 device with TrustZone enabled, and I am using the RTC with backup domain powered by VBAT. My RTC is initially configured while VDD is present, and after power-off, the time is supposed to be retained using VBAT.When I use the...

Ananth_ by Associate II
  • 35 Views
  • 2 replies
  • 1 kudos

Resolved! DBP bit couldn't be set to 1

I want to use stm32f103rct6 inner RTC, I write some code as below to active RTC, But I found I couldn't set DBP bit of PWR_CR reg to 1,   __HAL_RCC_PWR_CLK_ENABLE(); __HAL_RCC_BKP_CLK_ENABLE(); LL_PWR_EnableBkUpAccess();when I debug the re...

STM32U3 Workshop - NFC

Hello STM Community - This post is in reference to the recent STM32U3 workshop webinar. I worked through the rather involved / complicated setup associated with the NFC example. Once the code was generated, 23 errors were returned during compilation....