Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Nios crashes when reading from the DDR2

Hi, I'm trying to setup the DDR2 as a frame buffer for streaming to a display. Currently, I am able to write and read pixels to and from the off-chip DDR2 and communicate with custom ha...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

I just wanted to follow up and say that I have it working now. I am writing and reading full frames from the DDR2!

There were actually quite a few things wrong with my design when I first posted on here, but what was really causing the hanging of the Nios was a wrong assignment on the mem_cke pin. The DE3 board has an optional mem_cke[1] assignment, which I had wrongly set for some reason instead of the correct mem_cke[0].

Thanks, Jake, for your help.

Andrew