Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
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 ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

The mechanism to generate interrupt in Avalon-MM PCIe DMA IP is same as the Avalon-MM 64/128bit Hard IP (non-DMA) when this IP is configured properly for sending the required interrupt.

However, Avalon-MM PCIe DMA IP version doesn't expose the RxmIrq port, users might need to use Mailbox to generate MSI interrupt.

Writing A2P_Mailbox to send MSI to far-end with the AvMM DMA PCIe IP.

(This message was posted on behalf of Intel Corporation)