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Altera_Forum's avatar
Altera_Forum
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11 years ago

cycline ii/ii/iv AS configuration restart with external pin.

Hello all!

Is it possible do a "hardware restart config" with an external pin from epcs serial fash in cyclone 2, 3, 4 ?

Normally i must remove a and replace the power for do this..

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    11 years ago

    As I recall, there is a pin on Altera FPGAs that external hardware can use to cause the FPGA to reconfigure. Check the configuration handbook for details.

  • Altera_Forum's avatar
    Altera_Forum
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    11 years ago

    You can assert (and then deassert) the nCONFIG pin to initiate reconfiguration. You can also issue a JTAG instruction to initiate reconfiguration.

    Both of these solutions require some form of connection to the board, so your "solution" depends on what you have available.

    Cheers,

    Dave
  • Altera_Forum's avatar
    Altera_Forum
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    11 years ago

    thank you all for the answers..

    I read the documentation that talks about the pin nconfig..