uClinux - Download zImage to Nios Processor Problem

Hi

I record a tutorial video about how to boot uclinux on Nios II Processor with MMC

I used DE2-115 as reference but you can use any board that you like

Link to tutorial video:

http://www.youtube.com/watch?v=rxlyezof0rs

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After I configure the sof file for the board the HEX displays show weird characters, some are turned off completely.

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I think this problem could be caused by some incorrect pin name. I've solved this by manually changing these pins names:

dram_ba_1 --> dram_ba[1]

dram_ba_0 --> dram_ba[0]

dram_udqm --> dram_dqm[1]

dram_ldqm --> dram_dqm[0]

After this change, the HEX displays will be all 8.

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So then when I proceed to download the customized zImage (said above) I get the following error...

Using cable "USB-Blaster [USB-0]", device 1, instance 0x00

Pausing target processor: not responding.

Resetting and trying again: FAILED

Leaving target processor paused

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Had the same problem. The solution for me was that I had to keep open the opencore plus status window that pops up when you download the time limited .sof file into the board with Quartus (Programmer).

Hope this can be useful for someone!:D

Hello,

You say that your tuto (DE2-115) works with any board. I do exactly the same but with a DE2 Board with 8Mo SDRAM and it's doesn't work. What is the trouble?

My zImage is bigger than your (my 4.1Mo)?

Thank's

Hi cerialtera,

Yes, 4Mb zImage is too big for DE2 with only 8M memory.

- Hippo