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vlfft中edma实现



专家好,我在vlfft基础上实现希尔伯特变换,fft和ifft之间要对数据进行处理,如果直接对ddr操作耗时间比较长,想把数据搬移到l2中处理。想问下dma怎么实现的?vlfft中不太清楚,我参照后数据没有搬移,想知道如输入输出通道地址设置,idx和cnt等设置。主要是整个流程是什么?