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GabrielC's avatar
GabrielC
Icon for New Contributor rankNew Contributor
3 months ago

Agilex 3 GTS PCIe IP missing

I plan a new design using PCIe 3 and LPDDR4 using Agilex3. I already have a prototype project using an existing Cyclone 5 board, and it worked just fine. I tried to move to Agilex3 (Quartus Prime P...
GabrielC's avatar
GabrielC
Icon for New Contributor rankNew Contributor
2 months ago

Hi Wincent,

I wrote explicitly... MCDMA (alone!, no user logic) does NOT fit even with minimum settings (PCI 128Bytes, 1 DMA channel).

And you also mention that SGDMA is discontinued...

My only solution right now is to use MCDMA without DMA

That is, just bursting master and slave together with mSGDMA based logic.

This fits into smaller devices... but I have to do low level control to mSGDMA, VFIO... no way to use the MCDMA software/library...

Maybe one day the IP will be improved (to offer reduced memory footprint), but that will probably be too late for me, I need to start the design NOW.

Regards,
Gabriel

  • Wincent_Altera's avatar
    Wincent_Altera
    Icon for Regular Contributor rankRegular Contributor
    2 months ago

    Hi @GabrielC ,

    I will definitely feedback this to our Marketing team to have MCDMA that fits into the smaller device.
    Again, please accept my apology for the inconvenience cause to you. And really appreciate for your feedback.

    If you happen to have any issue on designing your design, please do file a forum thread or contact your local distributor to file an service ticket. We will be there to ensure your success.

    Regards,
    Wincent