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Altera_Forum
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20 years ago

multiprocess and flash programming?

Hi,

I write a simple program for including two nios in one design and i try to write some S.W. for each processor. I have already tested but i don't know how to use flash programming to program into my flash? It only program one elf file into flash but i have two elf files. I try to use flash programming to program two elf files separately but it don't work. How can i use flash programming to make a standalone system about multi-processor?

Thanks.

3 Replies

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

    Hi,

    Have anyone ever programed several .elfs and a .sof into flash in multi-processor system? I doubt that more niosII cores can't boot in the single flash by different base address at the same time because of only a cfi interface. Whether my doubt is correctly? I follow multiprocessor tutorial to successfully test two niosII cores in the multiprocessor debug of NIOS II IDE. Could anyone have any suggestions to me?

    Thanks.
  • Altera_Forum's avatar
    Altera_Forum
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    20 years ago

    Hi

    even i feel the same thing?

    even if u implement all the boot codes in sdram

    with different base addresses it may not be possible

    for them to boot parallely as they have only one data bus(32-bit)

    hence i think avalon bus arbiter will play a major

    role in arbiting the sequence of operations.

    regards

    prasad
  • Altera_Forum's avatar
    Altera_Forum
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    20 years ago

    --- Quote Start ---

    originally posted by samlittle@Oct 24 2005, 08:33 AM

    have anyone ever programed several .elfs and a .sof into flash in multi-processor system? i doubt that more niosii cores can't boot in the single flash by different base address at the same time because of only a cfi interface. whether my doubt is correctly? i follow multiprocessor tutorial to successfully test two niosii cores in the multiprocessor debug of nios ii ide. could anyone have any suggestions to me?

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    --- quote end ---

    --- Quote End ---

    Hi,

    The multiprocessor tutorial from Altera do not cover in effect the flashing of a multiprocessor design on the Evaluation boards. Basically, you need to take care of the addresses you choose in SOPCBuilder, in a way that they do not overlap different flash blocks. Then, you can do everything from the Quartus II flash programmer.

    FYI, we released today an updated tutorial, which contains some informations and screenshots about flashing a multiprocessor system. You can find it at the erika enterprise and rt-druid literature page (http://www.evidence.eu.com/nios2/literature.asp) on the Evidence web site.

    Regards,

    Paolo