STM32 MCUs Products

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STM32H7R3 PSSI RDY/DE bug

Hello,I dug deeper into PSSI behavior, and and I observed unwanted behavior. From my point of view it is a bug.PSSI is configured as:OUTEN = 1 (transmit mode)CKPOL = 0 (outputs driven on rising edge, inputs sampled on falling edge)RDYPOL = 0 (0 at in...

pssi3a_valid.png pssi1a.png pssi2.png

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

How to test the SNR and ENOB of DAC?

Hi,Recently, I have been evaluating the DAC accuracy of STM32H743. The data sheet mentions the SNR and ENOB , but I have no idea how to test it. Could you please provide a testing method or a testing plan? Looking forward to your reply.

STM32G4 ADC offset correction in oversampling mode

Hello @Imen.D , A side question: RM0440 for G4 says oversampling mode does not support offset. Any change to this position as like the H7 change?  Solved: 'H7 ADC offset correction in oversampling mode - STMicroelectronics Community Thank you. SK

CSK by Associate
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  • 3 replies
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STM32C071 NUCLEO Start USB DFU Bootloader

Hi,how do I start the USB DFU Bootloader with a STM32C071 Nucleo? I tried it while putting Boot0 to high and pressing reset or do a power cycle but the STM32 DFU does not show up in the device manager. I connected USB to the NUCLEO extra USB port of ...

Resolved! Can not jump to APP from bootloader on STM32G0B0CET6

Hi I have a question that blocked me for several days, Hopefully someone can help, thanks a lot.1:MCU:STM32G0B0CET6,Develop tool:STM32CubeIDE2:I wanna have a test for OTA ,so i create a bootloader project and app project3:Flash segmentation:1)Bootloa...

sg0993_0-1767521397710.png sg0993_1-1767521424042.png
sg0993 by Associate
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  • 5 replies
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USART + DMA and RTO (receive timeout) together ?

Can i use UART + DMA  ( normal ) + RTO ? I try to add RTO but when activate RTOE bit the DMA buffer stops fills .I take interrupt with active RTOF , stop DMA , but nothing in buffer !? I use stm32H7 with hardware implemented RTO. Can some one to give...

Brussl by Associate II
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  • 6 replies
  • 1 kudos

Calibrating the STM32's real-time clock (RTC)

I have an STM32L011F4P6 with an RTC.  It is running at 3.3V and 16 MHz off the internal HSI RC clock.  The RTC is driven by a +/-20ppm 32.768 KHz crystal.  It is running at room temperature (23-25C).  After calibration, I am losing several seconds pe...