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BF531's Memory DMA transmission in large list mode can't stop normally

Question asked by Stepwolvs on Nov 24, 2010
Latest reply on Nov 29, 2010 by Andreas

When I use BF531's momory DMA to transfer some bytes to external SDRAM,I find DMA_RUN bit in MDMA_D0_IRQ_STATUS register

is set when the transmission has been done.According the notes in hardware reference,I set the FLOW bits of config word in the last descriptor

to 0,or set the DMAEN bit in configuration register to 0, an error occurs when the transmission has been done.

can anyone give me some suggestions how to stop the DMA normally.The attachment is my project.