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What is the minimum settings of QE sdma?

Question asked by Jia Guo on Jun 27, 2019
Latest reply on Jun 30, 2019 by alexander.yakovlev



To make sdma work, what are the minimum settings? Is the sdma data transfer transparent to software? Take ucc_uart for example, to transfer serial data from qe to external memory, I need to setup the buffer descriptor and mark it as ready, then should the sdma take effect? I mean, there isn't further software operation on sdma, right?