STM32 MCUs Products

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STM32H745 SPI RXP spurious interrupts

Hello all,I have serious problem with SPI2 on STM32H745 using interrupts.First I try system with polling:uint8_t Send(data) { *((uint8_t*)&SPI2->TXDR) = data;   while((SPI2->SR & SPI_SR_RXP) == 0) {   } return *((uint8_t*)&SPI2-...

DM.21 by Associate II
  • 2113 Views
  • 7 replies
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Reading different CPUID when ever STM32F107 is power cycled.

Hi ST community,I am trying to read the CPUID of STM32F107 using the following code snippet. But the problem is each time I power cycle it, I am reading a different CPUID. I am reading CPUID from address location UID_BASE_ADDRESS(0x1FFFF7E8) for STM3...

Skira.17 by Associate II
  • 651 Views
  • 1 replies
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Resolved! Clocks Initialization wrong (SOLVED).

Hi all!,I'm, triyng to program using CMSIS in order to learn how registers works.If I use the SystemClock_Config() generated by STM32CubeIDE all works properly, but if I use my own rutine, the TFT wired to SPI3 dont show the fonts properly (I think i...

JAlca by Senior
  • 1094 Views
  • 4 replies
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STM32H743XI Multi SPI Circular DMA with GPIO manipulation

Hi, I want to achieve the title's behaviour to communicate with multiple SPI sensors in the 5 SPI buses at the highest possible throughput and minimal CPU load. I first tried the following with 1 bus.void cpltCB(void); uint8_t RXBUFF[8];   void main(...

CMA by Associate II
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  • 9 replies
  • 0 kudos