Forum Discussion

jaykrishna1's avatar
jaykrishna1
Icon for New Contributor rankNew Contributor
24 days ago

Memory Support with A5ED065BB32AI4S Agilex5 FPGA

Hi, I am using the A5ED065BB32AI4S FPGA, Want to connect the DDR4 X32+ECC with the 2A,2B,3A,3B. We have 512M X16 memory want to interface 4GB with the PS and 4GB with the PL how i can ? Thanks Ja...
Core Logic
jaykrishna1's avatar
jaykrishna1
Icon for New Contributor rankNew Contributor
22 days ago

Hi,

Thanks for your reply .

For PL X32+ECC with the 2A,X32+ECC with the 2B bank.

For PS X32+ECC with the 3A,X32+ECC with the 3B bank .

is the above mapping fine?

Thanks

Jay

yoichiK_altera's avatar
yoichiK_altera
Icon for Contributor rankContributor
19 days ago

Hi Jay

Please see my comments here

For PL X32+ECC with the 2A,X32+ECC with the 2B bank.  --> yes.

For PS X32+ECC with the 3A,X32+ECC with the 3B bank . -->No, If only one IO96 bank is to be used by HPS-EMIF, it must be the one adjacent to the HPS MPFE. (Bank 3A.)

  • jaykrishna1's avatar
    jaykrishna1
    Icon for New Contributor rankNew Contributor
    16 days ago

    Hi,

    For PS X32+ECC with the 3A,X32+ECC with the 3B bank . -->No, If only one IO96 bank is to be used by HPS-EMIF, it must be the one adjacent to the HPS MPFE. (Bank 3A.)----.> As we have 1GB DDR4 and we need 4GB so which bank can use ?

    mapped 2GB with the Bank 3A and other 2GB where can map?

    Thanks

    Jay

    • yoichiK_altera's avatar
      yoichiK_altera
      Icon for Contributor rankContributor
      10 days ago

      You can use 3A bank for 4GB DDR4.    You can not share memory across 3A band and other bank.  4GB DDR4 is dedicated memory for HPS EMIF.

       

Recent Discussions