Why are the R-Tile AXI Multichannel DMA IP Design Example DMA Queues stuck when the Gen5 IP configuration links downgrade to Gen4 or lower speeds?

Description

Due to a problem in the Quartus® Prime Pro software version 25.3.1 and earlier, the AXI Multichannel DMA IP Queues will stick if the Gen5 configuration of the IP is link downgrades to Gen4 or lower. For example in the Gen5 IP is used in a Gen4 system.

Resolution

To fix this problem in Quartus® Prime Pro software version 25.3.1 please install patch 1.01 below.

This problem is scheduled to be fix in a future release of the Quartus® Prime Pro software.

IP Core

AXI Multichannel DMA IP for PCI Express*