STM32 MCUs Products

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Forum Posts

How does FDCAN time stamping work exactly on the STM32H7 ?

The FDCAN module generates timestamps for sent and received messages, and you can configure it to use TIM3 as the source. Unfortunately, the documentation is rather thin, so I am left with a few questions:Do TIM3 and FDCAN need to run from the same c...

K M by Associate II
  • 3459 Views
  • 3 replies
  • 0 kudos

STM32F4 series PA1 pin always has a 3.3V voltage

Hi all,I am using a mass-produced PCB board for a project, the chip model is STM32F429BIT6. The PA1 pin is used as ADC1-IN1 for access to the sensor.However, I found a strange phenomenon that after configuring the ADC, the initial reading of the pin ...

GCT by Associate
  • 3113 Views
  • 4 replies
  • 0 kudos

STM32F373CCT6 SDADC initializing problem

Hi, I'm trying to initialize SDADC of my STM32F373CCT6 chip based on the Standard Peripherial Library. The program can be compiled with no errors but doesn't work after I uploaded it to the chip. I used a LED program to test it and found that the ini...

Ada by Associate
  • 658 Views
  • 1 replies
  • 0 kudos

H743 GPIO EXTI Controller Details

I am using the H743 microcontroller and am looking for some more information about the GPIO EXTI controller.Specifically, how long does a signal need to be held on a GPIO in order for the EXTI to detect a rising or falling edge?I notice in the timer ...

astral256 by Associate II
  • 1018 Views
  • 2 replies
  • 5 kudos

PTP offload H7: one-step timestamp from HW?

Heyho,a few questions to those who already used the PTP offload function (not via IP / UDP, but PTP directly over ethernet, MAC packet type 0x88F7), which can auto-generate SYNC and DelayRequest messages:1) As this feature does not auto-generate Foll...

LCE by Principal II
  • 5432 Views
  • 24 replies
  • 13 kudos

Resolved! STM32L471 ADC maximum sampling rate

I have the following clock tree for STM32L471I am using TIM2 as trigger for DAC, ADC1, and ADC2 at 2.4MHz. Clock frequency of TIM2 is 48MHz with a counter value of 19 and prescaler = 0.With oscilloscope, I confirmed that the DAC is generating the sig...

kasarghu_0-1751879106670.png
kasarghu by Associate
  • 1113 Views
  • 3 replies
  • 2 kudos
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