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MHada's avatar
MHada
Icon for Occasional Contributor rankOccasional Contributor
11 months ago

IDENTIFYING THE ECC BYTE IN 40 bit DATA BUS OF EMIF CONTROLLER of ARRIA 10 HPS

Dear All, Designing ARRIA 10 board with 32 bit DDR4 interface (2 components - 4Gb each (256 X 16)) and the third component used for ECC - total 40 bit on the HPS side. I am unable to identify the E...
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AdzimZM_Altera's avatar
AdzimZM_Altera
Icon for Regular Contributor rankRegular Contributor
11 months ago

Hi MHada,


DQ0 - DQ31 is Data pin, DQ32 - DQ39 is ECC pin.

The ECC pin should be placed in Lane 3 of IO Bank 2K as mentioned in the User Guide.

You can swap the pin placement in the Quartus and place the DQ32 - DQ39 in Bank 2K.


Regards,

Adzim



MHada's avatar
MHada
Icon for Occasional Contributor rankOccasional Contributor
8 months ago

Hi Adzim,

Thanks for the prompt reply.

Very sorry it got missed !! I am still under confusion on this.

When you talk about DQ0 - DQ31, are you talking about the controller signal name on Quartus or the data bus assigned on my schematic.

I find the DQ0 to DQ7 assigned to lane 3 in bank 2K and the project getting compiled in 32 bit data + ECC DDR4 configuration !!

Quartus should not compile the project if that is the case. I seriously think I am doing something wrong here !!

I will follow this closely.

  • MHada's avatar
    MHada
    Icon for Occasional Contributor rankOccasional Contributor
    8 months ago

    Hi, @AdzimZM_Intel

    I forgot to tell that I have attached my schematic and pin config files in previous post.

    Pls help us in this !!