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Runtu1996 · 2023-10-24

Hello.I'm using a development board STM32H747I Disco. i'm using a DAC to output a Sinus signal and read it through the ADC. the DMA is able to store the data correctly in normal mode, but not in circular mode. If the DMA can fit exactly one or more c...

Runtu1996 · 2023-10-24

Hello, sorry for the confusion in my answer. For example if every 20 measurements are one sinus cycle, then the DMA size needs to be a multiple of 20, e.g. 200. But if the DMA size is 201 or so, then the data is all messed up.I also used a signal gen...

Runtu1996 · 2023-10-24

Hi, thanks for your reply.The buffer is declared at the beginning of the file./* Definition of ADCx conversions data table size */#define ADC_CONVERTED_DATA_BUFFER_SIZE ((uint32_t) 256) /* Size of array aADCxConvertedData[] *//* Variable containing A...

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stm32h747xi Cannot use DMA to continuously store ADC-converted data.

Re: stm32h747xi Cannot use DMA to continuously store ADC-converted data.

Re: stm32h747xi Cannot use DMA to continuously store ADC-converted data.