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Altera_Forum's avatar
Altera_Forum
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17 years ago

Does Altera supply a avalon-wishbone bridge?

Does anyone know if there is a such bridge from Altera?

Thanks,

6 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    I do not believe there is one from Altera.

    I do think that the is one in the opencore community.

    Or perhaps on Nios Forum?
  • Altera_Forum's avatar
    Altera_Forum
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    As far as I know, wishbone interconnect is similar to Altera's avalon interconnect.

    Altera does provide 2 Avalon-MM bridges: pipeline bridge and clock crossing bridge.

    See which one is suitable to your need.
  • Altera_Forum's avatar
    Altera_Forum
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    --- Quote Start ---

    The Wishbone bus connects very easily to the Avalon bus. You just need to add a bit of combinatorial logic. See if this link helps:

    http://en.wikipedia.org/wiki/wishbone_(computer_bus)

    There are several examples out there (The OpenCores MAC and I2C cores have been ported to Avalon).

    Jake

    --- Quote End ---

    Hi Jake,

    Can you show me where to find the examples?
  • Altera_Forum's avatar
    Altera_Forum
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    The attached file is a wrapper that I once wrote to connect the OpenCores MAC which has a wishbone slave and a wishbone master to the avalon bus.