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Several DMA streams running in "parallel"

Hello!I'm new to DMA concept, and need some clarification on several DMA questions (STM32h7). Q1. From RM0433: "To ensure data coherence, each group of transfers that form a burst are indivisible: AHB transfers are locked and the arbiter of the AHB b...

MNema.1 by • Associate II
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  • 2 replies
  • 0 kudos

Trigering ADC in the Middle of PWM ON Duty Cycle

Posted on February 07, 2013 at 19:23Hello, My intention is using TIM1 Complementary PWM Channel 1-3 for Brushless Motor Control. I want to sample the Phase Voltage at the middle of PWM ON Duty Cycle. I have configure TIM1 to output 6 Channel PWM but...

Resolved! STM32H563VI Octo-SPI interface dummy cycles

Hi,someone can explain me how to calculate the "dummy cycles" number reading an external flash qspi such as the Winbond W25Q64JV ?I have to read in qspi mode with the Fast Read Quad I/O (EBh) command in SDR mode. The flash memory datasheet asks for 4...

Ez by • Associate II
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  • 4 replies
  • 1 kudos

Resolved! Efficient de-interleaving without waking the CPU

I am using the STM32G474 and have the following situation:I have configured a Timer to run continuously at 25 kHzThe Timer triggers the ADC to start a sequence of 6 conversions (i.e. 6 ADC channels)Upon completion of each ADC conversion, DMA transfer...

Olly by • Associate II
  • 1398 Views
  • 5 replies
  • 4 kudos

Resolved! Unable to get maximum SYSCLK of 480MHz on STM32H743XIH

With SYSCLK set to 400MHz in MX Clock Configuration there is no problem, but any setting above ~420 up to the maximum of 480Mhz causes the system to 'crash' during initialisation in HAL_RCC_ClockConfig(..). More specifically when or after RCC->CFGR i...

DavidO by • Associate II
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  • 4 replies
  • 3 kudos

Resolved! STM32F407IE programming via SPI

Hello, I am currently using the STM32F407IE (Board A) and want to use another STM32 (Board B) with it, but I want to be able to program board A via board B using a SPI interface as I can use this as a general comms interface as well. I know you can p...

Jm3 by • Associate II
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  • 4 replies
  • 2 kudos

Resolved! STM32H745XI Disco board damaged - how to recover?

The SPI2_MISO pin (PI2) at the arduino connector of the STM32H745XI board was accidentally connected to the MOSI of another SPI device giving around 5V and now the board red LED (LD3) keeps being on...According to the user manual, this means STLK Ove...

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