STM32 MCUs Products

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Synchronization of timers in stm32f7

Hi Sir / Madam,I am trying to synchronize two timers or reduce delay between two timer outputs.Yellow signal represents low frequency signal ( Timer 3 around 4Khz ) and blue signal represents high frequency signal ( Timer 1 around 1.5Mhz ). They are ...

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svLag by Associate II
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  • 3 replies
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Resolved! Can't communicate with another device via UART

I've been fighting this problem for some time. I have a simple custom made board based on STM32G05. I'm utilizing 2 UARTs. One of them I use just for serial port debug. Takes keyboard input (but don't use it) and print out data for debugging. The ...

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Resolved! STM32 Bus Matrix behavior and arbitration mechanism

Hi,I'm trying to learn DMA in depth, but I'm confused at some points. It's about Bus Matrix and Arbitration mechanism. In STM32F446RE, there are 2 DMA controller and each one has 1 peripheral bus and 1 memory bus. Question is not about memory bus of ...

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MSara.2 by Associate
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  • 4 replies
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QSPI STRANGE BEHAVIOR WHEN AUTOPOLLING

I am trying to autopoll wip and wel bit from status register (0x05) in a flash memory when I perfrom a erase process.The first autopolling operation is correctly, however, the second time that qspi try to autpoll the bits, this does not release CS, a...

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JCuna.1 by Senior
  • 2896 Views
  • 16 replies
  • 1 kudos

Setup for CAN-FD communication with NUCLEO-H7A3ZI-Q

Hello good day!I want to setup a CAN-FD message sending simulation with H7A3ZI-Q (one or two message ids). But i do not exactly know how to assemble the HW and what i need (For STM side). I know this board is capable of the CAN-FD but it needs a tran...

NStei.2 by Associate II
  • 1108 Views
  • 1 replies
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How to read values from a GPIO_EXTI pin?

I want to read values from ultrasonic sensor for my project. I use STM32l452RC controller. I am able to do that if I map that pin as GPIO_Input and by using the HAL command HAL_GPIO_Read_pin.But I want to map the input of the ultrasonic sensors as in...

RAnan.3 by Associate III
  • 2065 Views
  • 1 replies
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