I'm using the UART and have set up an UART receive interrupt that reads the received byte value and puts it in a circular buffer.
But when I try higher baud rates I sometimes get over run errors.
Is it possible to use the DMA in some way together with my circular buffer?
Or is it only possible to receive a determined number of bytes with the DMA?
Now I have tested some code.
I think I must link two DMA channels. But now I don't know how to do that. I need some examples.