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jmcguire3's avatar
jmcguire3
Icon for Occasional Contributor rankOccasional Contributor
4 years ago
Solved

PCIe HIP - only one legacy INTX interrupt available

I have a legacy support task - obsolete hardware, critical system, etc - where I need to emulate some old, obsolete, unobtanium peripheral components in an FPGA. The peripherals in the system use th...
  • Wincent_Altera's avatar
    Wincent_Altera
    4 years ago

    Hi,

    Apologize for late, hope this helpful.
    There is two AVMM example available in the Quartus, one is AVMM another one is AVMM+

    • For the AVMM example design indeed you will get "1"

    The document provided by you early 3.2.3.3.1. Interrupt Signals Available when the PCIe Hard IP is an... (intel.com)

    Shows that the 4bits intx_req_i is only available for AVMM+

    I try to run the example design (AVMM+) and I get the result below

    Let me know if this is helpful, please correct me if i am wrong.

    Regards,

    Wincent_C

Wincent_Altera's avatar
Wincent_Altera
Icon for Regular Contributor rankRegular Contributor
4 years ago

Hi,


Apologize for late reply, I am able to replicate your issue using Stratix 10 AVMM design example.

Then intx_req_i signal indeed only "1" is available.

I might need more time to investigate this issue. Get back to you soon as possible.


Regards,

Wincent_C


Wincent_Altera's avatar
Wincent_Altera
Icon for Regular Contributor rankRegular Contributor
4 years ago

Hi,

Apologize for late, hope this helpful.
There is two AVMM example available in the Quartus, one is AVMM another one is AVMM+

  • For the AVMM example design indeed you will get "1"

The document provided by you early 3.2.3.3.1. Interrupt Signals Available when the PCIe Hard IP is an... (intel.com)

Shows that the 4bits intx_req_i is only available for AVMM+

I try to run the example design (AVMM+) and I get the result below

Let me know if this is helpful, please correct me if i am wrong.

Regards,

Wincent_C