Forum Discussion

chander's avatar
chander
Icon for New Contributor rankNew Contributor
2 years ago
Solved

Agilex 7 can HPS use HBM instead of DDR to connect to MPFE

AGMF039 has 32GB of HBM. 16GB of HBM is on the same NoC as HPS. Is it possible for HPS to use this 16GB (or perhaps even 32GB) of HBM to be connected to its MPFE interface instead of DDR. Is there ...
Arm Processor
  • tehjingy_Altera's avatar
    tehjingy_Altera
    2 years ago

    Hi


    Apologize for the late reply.

    The HBM could not be connected through the MPFE other than AXI.


    Regards

    Jingyang, Teh


tehjingy_Altera's avatar
tehjingy_Altera
Icon for Regular Contributor rankRegular Contributor
2 years ago

Hi


Any update on this case?


Regards

Jingyang, Teh


chander's avatar
chander
Icon for New Contributor rankNew Contributor
2 years ago

Hi,

The query was regarding the HPS being able to access the HBM over the MPFE interface rather than the AXI interface. The HPS can only access a 4GB address space over the HPS-to-FPGA AXI interface, however via the MPFE it can access 16GB address space or more. The query was if HPS can access the HBM via MPFE.

regards

Chander