Other Parts Discussed in Thread: TL16C2550
I'm interfacing to a TL16C2550 UART, and it'd be nice to be able to communicate with the UART using DMA. This would require triggering DMA from pins of the TMS570 from the UART's TXRDY and RXRDY signals.
After reading the reference manual quite a bit, the only way I can see to do this is to connect the RDY signals to NHET pins, and write an NHET program to poll the pins and assert a DMA request when they're activated. This seems a bit convoluted. Is there any other way to trigger a DMA request from an external pin?
Seth LaForge
