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Altera_Forum's avatar
Altera_Forum
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8 years ago

Adding a second timer and generate a sof file

I could successfully run the uClinux 2.6 with a sof file that I downloaded from a tutorial. Now I must add a timer to the design and generate a sof file. How can I do that?

When I try I get a time-limited sof file ("DE2_115_uClinux_time_limited.sof") and when I use that I get the following error msg 


Linux version 3.5.0-rc4-01329-ga227997-dirty (developer@1604) (gcc version 4.1.2)# 820 Sun Apr 2 09:01:31 CEST 2017
bootconsole  enabled
early_console initialized at 0xe8001440
ERROR: Nios II MUL different for kernel and DTS
Unable to handle kernel NULL pointer dereference at virtual address 00000000
ea = c0238094, ra = c0238078, cause = 15
Kernel panic - not syncing: Oops

https://alteraforum.com/forum/attachment.php?attachmentid=13450&stc=1

I added a timer in Qsys, set its memory address so that it didn't conflict and enabled the same connections as the first timer. Then I recompiled the design and generated a new .dts file with the tool.

Could you please help me and let me know what I should do?

2 Replies

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

    I don't know about the .dts, but the time limited is probably because you are using an IP that you don't have a license for.

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

    Thank you for the reply. I've only limited experience using Qsys and Quartus and the design I added a timer to was taken from Mahdi's tutorial how to boot MMU with DE2-115. The error msg looks like I have something wrong with the dts. It also appears if I try with linux 4.x from altera-opensource in github. I will try again and hope that we can solve it.