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How DMA Transmit works ?

Question asked by ghadab.majd on May 6, 2018
Latest reply on May 7, 2018 by Clive One

Hallo everyone i have a question..

as i know the DMA receives Data und when it reaches the Bytes the i have determined it makes interrupt so this is usefull because the cpu doesn't wait the UART slow connection to finish.

but the DMA Transmit works I have tried to read so many sources in Internt and couldn't find out.

do the CPU as i think put the data in the DMA when it reaches the DMA send instruction and then continue to the second instruction without waiting the receiving Terminal to finish and let the DMA controller do the Job.. or how

thanks

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