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Altera_Forum's avatar
Altera_Forum
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17 years ago

SDRAM on DE2

Hi friends: I come up with a problem on DE2 board.In the SOPC builder,I set the clock of both SDRAM and CPU 50Mhz,when I download the software in Nios,it said "Verify failed between address 0...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

I've a very similar problem, and I cannot communicate with the sdram,

(nor to download the program into it of course)

However the problem is limited to the usage of the Nios in the version standard or fast, while when i use the "e" version everything works properly.

I found this unusual behavior both on DE1 and on DE2 board.

I'm using Quartus 9.1 ad the sdram clock is controlled by a -3ns PLL.

Someone has been able to communicate with the SDRAM using NiosII/s or NiosII/f ?