STM32 MCUs Products

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Timers first pulse is different and timers not in sync

Hi,I have spent a few days trying to get the timers in sync, that is use one timer with multiple outputs; oc,PWM,base. I am generating a 1MHz clock for an external device. And then a start pulse. When the timer overflows ADC starts. It needs to be ex...

DWuje.1 by Associate II
  • 727 Views
  • 1 replies
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USART receive break and reset mcu

Hello,I use STM32G0 and USART2 in IT mode or DMA mode.When the mcu receive a break command on uart line, he reset after entering on the IRQ handler.Have you an idea ?Regards

tvill.1 by Associate II
  • 7047 Views
  • 18 replies
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No response from TIM2 and SPI2

Hello all,I have been working on an STM32F0, with an external ADC. I used PA5 as an SCK with SPI1_SCK, PA6 as an SDO with SPI1_MISO, and PA8 as a CNV with TIM1_CH1. With one external ADC, it all worked as intended. I used an oscilloscope to confirm t...

JKing.8 by Associate III
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  • 5 replies
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Is there a workaround for the 'Additional reset needed after power off/on to enable connection to the BL interfaces' bootloader bug of STM32H743?

I would like to use the integrated Bootloader of the STM32H743 for updating the firmware over I2C. I don't have access to BOOT or RESET pins at the I2C master side, so my desired procedure would be:Send a command over I2C to my firmware. Once my firm...

JArwe.1 by Associate II
  • 658 Views
  • 0 replies
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Fill Stack with watermarks without reset handler

Hello,I need to fill the stack with watermarks, but I do not have access to the assembly startup script. Usually I would do it right at the start of the reset handler, is there another way of doing this?

LHans.2 by Associate II
  • 869 Views
  • 4 replies
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Is this a fake UART idle line?

Hello!I'm working with UART+DMA+IdleDetection. I receiving long frames of data(250-300 bytes) 250 times per second at 921600bps without HT & TC interrupt from several sensors and one Arduino, then I send them by USB . Sometimes, I receive overwritte...

0693W00000QKwfpQAD.png 0693W00000QKwgTQAT.png
SGonz.2 by Associate II
  • 2841 Views
  • 8 replies
  • 0 kudos

STM32F303xB inconstant wrong ADC measurements

I'm using the ADC to measure power grid voltage and current at 10 kHz. For most of the time the results are coherent. however, sometimes I detected some strange values colected by the ADC, differing from the measures made with an osciloscope in the a...

Strange SPI Clock Form

Hi allI have a question regarding the clock output from STM32F446VCT6 MCU.Can anyone tell me whether the clock signal looks good for you?Because for me it looks awful. The signals are measured directly on MCU pin (trace is 2 cm and is not connected t...

YDOVG.11 by Associate II
  • 6215 Views
  • 14 replies
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