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Altera_Forum's avatar
Altera_Forum
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16 years ago

uClinux boot routine

Hello,

I'm just curious about the boot process of uClinux on my NIOSII board. I'm downloading

the zImage over the NIOSII command shell: nios2-download -g

What is the relation between the bootloader and the zImage file and whats with the -g

parameter in the command?

Would like to explain this part in my documentation and would appreciate if somebody

could give some comments.

Thanks again,

Roman

5 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    -g just says nios2-download to start the CPU after the download. If you omit -g, nios2-download will load the elf file in memory, but leave the CPU in a paused state.

  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    --- Quote Start ---

    whats with the -g parameter in the command?

    --- Quote End ---

    nios2-download --help

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

    Thx for replies.

    So where is the zImage file stored when I'm downloading with this methode to the board?

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

    The elf file itself contains the address at which the data should be uploaded.