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Altera_Forum's avatar
Altera_Forum
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18 years ago

Problem In Reading SSRAM On Cycone III

Hi,

I am using Cyclne III Kit ... Which has External SSRAM on it. I am trying to perform read and write from it. I have coded small state machine which generates control signals to SSRAM.

The writes are working good in both RTL and Gate Level Simulation. But I observed Read is not happening in Gate Level Simulation.

I have seen data floating on DQ at Rising edge of the clock. But my registred read data is 32'hXXXXXXXXX.

Please anybody help to figure out the mistake ?

Thanks,

Ganapathi.

3 Replies

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

    Hi, were you able to use the SSRAM successfully?

    i can't get the SSRAM to work properly, i can't write to the SSRAM properly. can i have some example code?

    -AK
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    18 years ago

    I am using IS61LVPS25636A SRAM simulation model. The SRAM on the board is IS61LPS25636A.

    Hope your reply,

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

    What are you using for a simulation model for the SSRAM? Which SSRAM device is on the board?

    Jake