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Altera_Forum's avatar
Altera_Forum
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21 years ago

opencores ip

i want to use the opencores ip and they offer only the verilog files for the components not the class.ptf. has somebody experience with building such a class.ptf or maybe a downloadsource for that file?? http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/rolleyes.gif

2 Replies

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

    Dear piece-of-cheese,

    There is a company that has ported the opencore ip to a NIOS processor. You can find that company at www.maco-engineering.de.

    They can e-mail you the ptf file.

    Regards,

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

    piece-of-cheese,

    I have been using several opencores projects. And for the most part,

    I&#39;ve been quite pleased. In general, there are two types of interfaces

    you&#39;ll find: (1) wishbone, (2) generic ... neither of which will provide

    any ptf (or avalon support for that matter). You&#39;ll have to add the

    blocks to your system via an interface to user logic.

    WRT wishbone: I tried a few times to replace the wishbone interface with

    an avalon interface ... and eventually decided it was quicker (and more

    maintainable) to just insert a wishbone-to-avalon bridge.

    If it&#39;s generic (e.g. like the crypto cores for example), you can just

    write your own avalon wrapper.

    Regards,

    --Scott