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MKL26Z256 - Can DMA UART RX end transfer on RX idle?

Question asked by Bruce Graham on Jul 26, 2019
Latest reply on Sep 11, 2019 by Bruce Graham

MCUXpresso IDE v11.0.0 [Build 2516] [2019-06-05]

Device: MKL26Z256xxx4

SDK_2.x_MKL26Z256xxx4 2.4.1

 

I started with the driver example UART dma_transfer project.

 

The project has the DMA RX setup to receive fixed length transfers.

I am working with a modem, so I can't predict the transfer length of the data from the modem.

 

I need a why to end the DMA RX transfer when the UART line is idle.

Is it possible to end the DMA transfer when the UART Controller generates an IDLE interrupt?

 

Thanks,

Bruce

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