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Uart DMA transfer

Question asked by Pietro di Castri on Oct 18, 2016
Latest reply on Oct 19, 2016 by isaacavila

Good morning

I am testing the example uart_edma_transfer  for the SDK 2.0. On the FRDM K64.

I have modified the serial port, it is the 1 now. The pin mux are updated as well.

The buffer length is now 128.

I also initialize the tx buffer to some sequential numbers.

The source is attached.

I short on the board the PTC3 and PTC4, The pin 16 of J1 to the pin 4 of J2.

I see the data going out on the scope. The end of rx transfer is never got.

 

Suggestions....

Original Attachment has been moved to: uart_edma_transfer.c.zip

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