STM32 MCUs Products

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Forum Posts

SPI DMA with variable lenght and timeout?

Hi, my project is an ethernet server made with the STM32F411RET6. It receives and transmits data over SPI as a slave in 16bit mode, chip select disabled. At the moment i poll with HAL_SPI_Receive() and HAL_SPI_Transmit(). After transmit the master is...

MReus.2 by Associate II
  • 1320 Views
  • 3 replies
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Resolved! PendSV interrupt does not occur

・environment use board : STM32F1 Value Line Discovery Kit use debugger : TrueStudio(v9.3.0)​・questionI would like to use PendSV interrupt.To do so, I have executed the code below, but the interrupt does not occur.SCB->ICSR |= SCB_ICSR_PENDSVSET_Msk;※...

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Myasu.1 by Senior
  • 949 Views
  • 1 replies
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USİNG STM32F407 and MCP23S17 THE EXTEND OF PORTS

Hello everyone, I have a problem about mcp23s17, I try to make communication using mcp23s17 and SPI on the stm32f407vg but although My code is correct, ıt doesnt work, When I make debug, I can see 8 bit number in the register DR of SPI1 using HAL_SPI...

LauraCx by ST Employee
  • 1661 Views
  • 5 replies
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STM32F303 RTC Fail-safe mode?

I am using STM32F303 MCU for the customized board and using External RTC. Can we Build any Fail-safe mode for RTC in case of external RTC failsAnd if we flash or Reprogram the MCU. Will RTC Time sets to "0" zero Automatically?

SKris.7 by Associate
  • 779 Views
  • 3 replies
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MCP23S17 ?

Hello everyone, I have a question ,is there a library for mcp23s17 extander on the stm32f407 ?

bnymntrz by Associate III
  • 1238 Views
  • 1 replies
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Resolved! How to make a Manchester communication with a NUCLEO-L432KC ?

Hello,I would like to encode/send and decode/receive data using Manchester communication protocol (per G.E. Thomas) between 1 and 100 kbps with a NUCLEO-L432KC. I have read many topics with multiple solutions but I'm a beginner and I'm quite confused...

Loic1 by Associate III
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  • 11 replies
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Resolved! How to use BDMA in STM32H7?

I am trying to read signals from digital MEMS microphones via DFSDM peripheral and transfer it to memory with DMA on STM32H7A3. I found out that 4 channels are handled by DMA and remaining 4 with BDMA. Now I can't figure out how to get this BDMA to ...

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