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Altera_Forum's avatar
Altera_Forum
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15 years ago

DDR2 RAM on DB4CGX15

Hi,

I have a problem with the DB4CGX15 Borad and the implemented DDR2. In SOPC Builder I choosed the DDR2 SDRAM High Performance Controller. When I completed the SOPC System, gerneration was succesfull. When I go back in Quartus and compile I get an error massage:

Error: The design contains 2 blocks of type "Embedded multiplier block" but the selected device EP4CGX15BF14C6 does not support such blocks

From the datasheet I also know the EP4CGX15 has no embedded multipliers. So where can I pull them off? Or have I made another error?

Thanks in advance!

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    Hi again,

    finaly I found it by myself. The failure was done by myself too. I forgot to turn of the Hardware multiplier implementation in the nios2. So the error wasn´t a result of the DDR2 RAM Controller.