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Altera_Forum
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14 years ago

Read from MAX II via JTAG

Dear all

I want read some data (power analysis) from MAX II CPLD via JTAG in "Altera EP4SGX230KF40C".

How can I read this data?

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

    --- Quote Start ---

    I want read some data (power analysis) from MAX II CPLD via JTAG in "Altera EP4SGX230KF40C".How can I read this data?

    --- Quote End ---

    What board are you referring to?

    The MAX II CPLD is too small to implement the JTAG-to-Avalon-MM bridge (I've tried), so it will most likely be using an SLD_VIRTUAL_JTAG component, which means its access method is totally custom. You'd need to use either a power monitoring GUI supplied by the board vendor, or read whatever code was used to implement the MAX II CPLD.

    Cheers,

    Dave