uart problem of 21569

Hi,

I tested the uart of 21569 in DMA mode,I found a problem:for computer terminal,received bytes is less than sended.

computer terminal software setting is:timed transmission,period is 10ms,6 bytes a time.

I attached my code here,the code function is send 6 bytes to computer terminal software while received 6 bytes.

Best regards,

Bin

uart-21569.rar

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