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Altera_Forum
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17 years ago

Interfacing an APB-based IP to an Avalon-based system

Hi all,

I have a NIOS-II based system which is using Avalon switch fabric for interconnecting all the different blocks. I have made the system using SOPC Builder. Now, I want to add an IP which uses APB interface through SOPC. My questions are:

- Are there any "ready" bridges between Avalon and ARM AMBA busses? I have looked into the components available in SOPC but I couldn't find any.

- In case that no bridges are available, I assume that I need to add a wrapper around the IP and glue it to the system as an Avalon slave. Is there any tutorial/documentation on how to do that? I am looking currently at the Avalon bus specification but any other useful tutorial will be highly appreciated.

Thanks in advance.

Best regards,

Mohamed

1 Reply

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

    I think SOPC only supports the Avalon Bus, but I guess some busses like wishbone that have similar interfaces might work.

    What I do know is that if you want to do a wrapper you need to create a custom component for SOPC builder. You can find information about custom components in the SOPC Builder part of the Quartus II handbook, http://www.altera.com/literature/lit-sop.jsp

    Best Regards,

    Ola Bångdahl