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USART interrupts when dma is used

pa
Associate II
Posted on April 04, 2013 at 16:05

Hi all

I've a little question: is it possible to get the normal usart interrupts, when I use dma to transfer the data?

I want to add some LED (on at transmission), so it would be very usefull, if I can turn it on at a ''rx not empty'' event, turn off at ''rx timeout'', turn on at ''tx complete'' and turn of at last ''tx complete''.

I've tested it and it seems that the dma overrides all other usart interrupts.

Best regards.

Patrick
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