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Altera_Forum's avatar
Altera_Forum
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15 years ago

SDRAM on DE0 board

Does anyone have any experience with the SDRAM on the DE0 board? Can it be controlled using the SDRAM controller in sopc or does it require a custom controller? I'm also confused by it having a 13 bit address (12..0), it doesn't seem to fit in with it being 8 Mbytes

2 Replies

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

    Yes, the SDRAM controller in SOPC is the right way.

    I have soldered a 64 MByte SDRAM on my DE0 and it works perfectly with 140 MHz controller frequency and -60 degree phase for output clk

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

    forgot to mention: SDRAM address is always multiplexed (row and column), so you can theoretically adress 64 MByte

    Kest