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DMA address calculate question

Question asked by 大大 许 on Nov 13, 2017
Latest reply on Nov 13, 2017 by David Tosenovjan


I try to use 8byte transmit buffer to transmit data to 160 byte receive buffer

first transmit buffer start first byte to receive buffer ,while transmit buffer byte transmit finsih, dma source address need to repoint to transmit buffer buffer,but I can't make source address repoint to transmit buffer address.

how should i do. Who can tell me the figure that TCD.ATTR.SMOD regist  meaning.