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Continuous ADC capture with DMA

An ADC streams samples into a 512-entry buffer using DMA in circular mode. How do you process data without the DMA overwriting what you are reading?

A.Process one half on half-transfer and the other on transfer-completeB.Stop the DMA, process the whole buffer, then restart the DMAC.Read the buffer only at moments when the ADC itself is idleD.Use a buffer of one sample and read it in every DMA interrupt

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Continuous ADC capture with DMA

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