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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 G...Why does the GTS AXI Multichannel DMA IP for PCI Express* IP send Completion Data (CplD) with a length exceeding the Maximum Payload Size (MPS) set?
Description Due to a problem in the Quartus® Prime Pro Edition Software version 26.1 and earlier, the GTS AXI Multichannel DMA IP for PCI Express* IP sends Completion with Data (CplD) lengths t...152Views0likes0CommentsWhy is there critical Design Assistant violation reported at Synthesis stage after Scalable Scatter-Gather DMA IP DMA PCIe Mode Example Design compilation?
Description Due to a problem in the Quartus® Prime Pro Edition Software version 24.3, critical Design Assistant violation may be reported after Scalable Scatter-Gather DMA IP DMA PCIe M...120Views0likes0CommentsWhy does the Multi Channel DMA for PCI Express* FPGA IP fail to upgrade in Quartus® Prime Pro Edition Software version 25.3?
Description Due to a name change in the PIO Example Design from “PIO using MQDMA Bypass mode” to “PIO using MCDMA Bypass mode”, designs that include the Multi Channel DMA for PCI Express* FPGA IP&n...391Views0likes0CommentsWhy does the H2D *ST device port of the Scalable Scatter-Gather DMA FPGA IP send non-contiguous data in the DMA PCIe mode for Completion TLPs?
Description Due to a problem in the Quartus® Prime Pro Edition Software version 24.2, the Scalable Scatter-Gather DMA FPGA IP DMA PCIe Mode can only support incoming Completion TLPs for Mem R...145Views0likes0CommentsWhy does the PCIe* DMA Controller Stratix® 10 FPGA IP send two continuous MSI interrupts for the DMA operation?
Description Due to a problem in the PCIe* DMA Controller Stratix® 10 FPGA IP, the DMA controller will send out two continuous MSI interrupts: one for the DMA Read MSI vector and the other for the DMA...Why does the R-Tile AXI Multichannel DMA IP for PCI Express* AXI-S Packet Generate/Check Example Design generation fail with Enable User FLR is selected?
Description Due to a problem in the Quartus® Prime Pro Edition Software versions 25.3 and later, Example Design generation fails for the R-Tile AXI Multichannel DMA IP for PCI Express* when: A...44Views0likes0CommentsWhy does the Scatter-Gather DMA Controller Core (SG-DMA) treat all data as big endian?
Description Regardless of the data width set for the DMA, all byte lanes from a memory-mapped to streaming or streaming to memory-mapped transfer will be reversed. The SGDMA assumes that 8 b...231Views0likes0CommentsWhy are there ongoing DMA transactions at the Scalable Scatter-Gather DMA IP's device port even after the completion of the device port soft pause and soft reset sequence flow?
Description Due to a problem in the Quartus® Prime Pro Edition Software version 25.1 and earlier, the Scalable Scatter-Gather DMA IP may observe an ongoing DMA transaction for the device port w...101Views0likes0Comments
