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Altera_Forum
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10 years ago

Using Altera PCI AV-MM DMA IP with custom MSI interrupts

I am researching the necessary elements to create a new design to transfer data from a FPGA based device to a host computer using PCI-e interface. So long, i have looked into the PCI-e Avalon-MM DMA ...
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Altera_Forum
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10 years ago

Hi tanjomar,

You interpreted document correctly.Altera PCIe IP Core supports MSI/MSI-x interrupt.But it doesn't include logic to store address and data required for MSI/MSI-x interrupt.You can find it from the altera wiki.Following is the link.

http://www.alterawiki.com/wiki/handling_pcie_interrupts

You just need to instantiate pci_irq in Qsys/SOPC design.I don't have much idea about MSI interrupt but I know it supports up to 4 MSI-x interrupt.Source code is available so you can expand it for more number of interrupt.

Regards,

Krupesh