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Using Dma wich UART

Question asked by electronic men on Mar 25, 2015
Latest reply on Mar 27, 2015 by Erwan Y
i'm trying to send UART frame using DMA.
==> the problem is that the last bytes in the UART fifo not sended. and when i send the next frame i receive the last byte of the old frame.
 is there any mothod to clear the UART fifo before starting DMA transfer ???
why the last bytes in the fifo not sended ?