data sampling with external strobe (DMA ?)

dk1spb · ‎2015-08-11

Posted on August 11, 2015 at 09:11

I need input data from GPIO with external strobe (2000 samples; strobe is about 10 Mhz). But speed of processor it not enough.

Can I do it with DMA?

I have found many samples, but all of them use external signal as trigger for start DMA.

Does it possible use external signal as DMA strobe (move data word from GPIO to memory for each rising of strobe signal)?

#dma

waclawek.jan · ‎2015-08-12

Posted on August 12, 2015 at 11:13

You can use timer capture as an external DMA trigger source.

JW