STM32 MCUs Products

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Forum Posts

MCU is reset when wake up from standby-dstandby

We are working with STM32H7-Disco (Dual Core). Can we only wakeup M4 core and put the system in dstandby1 mode.I mean, if we are in Standby mode and we use a tamper interrupt from a button, our system reset M7 core and M4 core, but we want only wakeu...

CBraojos by Associate II
  • 2182 Views
  • 6 replies
  • 0 kudos

detect standby wake up RTC or Reset button stm32f401

Hi,This is my first post by the way, I do have stm32f401 and I am trying to use the stand by mode , I want to detect the wakeup reason, is it RTC or reset button, in case of RTC I will do one thing and incase of reset button I will do something else,...

UART on STM32F091 stops receiving data even if they're sent

So, I'm having strange behavior regarding the serial number of my board with an STM32F091.I have a Python software that sends a packet on the serial port every 100 ms. I have initialized the serial port on the ucontroller with the same settings as ar...

nico23 by Senior III
  • 3749 Views
  • 1 replies
  • 2 kudos

Resolved! stm32h747-disco BSP problems

Hello;I have the STM32H747I-DISCO card CPN: STM32H747I-DISCO, FG: DK32H747/SAT1, and on the MB1166-A03 screen A225300631. The problem is when I try to test the card with the BSP example, I encounter the following problem:I saw in the forums regarding...

Kfell1_0-1694361566801.png
Kfell.1 by Associate III
  • 7907 Views
  • 18 replies
  • 0 kudos

STM32H7 FreeRTOS tutorial

Hi , I m a student starting to learn STM32 for your final year project i would like to learn more about how to use FreeRTOS, using STM32CUBEIDE GUI to configure FreeRTOS and if anyone can advise any website, code , tutorial I can learn from? thx. 

Resolved! External DAC with SPI + DMA

HiI am trying to make an analog synthesizer, and for this is using a STM32G431 with some 8-channel DAC’s (connected via SPI) for generating control-voltages for the VCA’s and other circuits.I would like to use the SPI with DMA, and have looked at the...

decalvus by Associate II
  • 7572 Views
  • 13 replies
  • 4 kudos

Resolved! Input signal when MCU is powered off

Hello,I will make some probes for reading electrical values (AC, Analog, digital,...), but I'm not sure what happens if I insert a signal to a GPIO when MCU is powered off.I read time ago that all GPIOs are in high impedance state when MCU is not pow...

xisco by Senior
  • 4356 Views
  • 9 replies
  • 2 kudos