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Altera_Forum's avatar
Altera_Forum
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7 years ago

Access SDRAM in Altera DE2 Board

Hello,

I am trying to setup a NIOS project and I would like to use the SDRAM on the board.

Unfortunately, I seem to be unable to access the chip.

When trying to store the software on the chip, I get the classical "Verify failed" error.

I tried the memtest template and apparently, it fails right at the start with "Data bus test failed at bit 0x1".

As far as I understand, this means that my SDRAM configuration is wrong.

Unfortunately, I don't see where. I have a PLL ensuring that the SDRAM clock leads all other clocks and the pins are well configured.

I attached my project to this post.

Thanks in advance,

Fofeu

1 Reply

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

    Try using the system console to test if everything is working. If you are unfamiliar with tcl syntax, this is also a good place to start because you get interactive feedback of what you typed.

    I used to get the ''verify failed'' error too. This was because my clock or reset wasn't working properly.