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how long time will be cost by access ADC FIFO in 5744P

Question asked by liu jinhang on Jul 7, 2017
Latest reply on Jul 11, 2017 by Peter Vlna

HELP me!


when i transfer only 14 32 bits data from ADC result FIFO to RAM, i found that 4 us will be cost. i want to know why so much time will be cost? one thing must be know, i used DMA to do that! see bellow:




it is better that give me some document to specify the ADC result FIFO mechanism. thanks very much.