Article ID: 000077300 Content Type: Troubleshooting Last Reviewed: 04/19/2016

Why can I connect the Altera 16550 uart DMA request lines directly to the HPS in QSYS?

Environment

BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description The Altera UART 16550 UART IP DMA request lines can\'t be connected up directly to the Altera Arria® 5 and Cyclone® V SoC as it is split in two channels RX and TX.
Resolution To work around this issue, the DMA channels will have to be exported and connected up externally.
This problem is scheduled to be fixed in a future release of the Quartus II software.

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