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Altera_Forum's avatar
Altera_Forum
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16 years ago

inter board JTAG communication

Hi all,

I'm using Altera Cyclone III board, can i use the JTAG header to configure another FPGA board (the altera Cyclone III bord send the programmer file by JTAG)?

5 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    No, all FPGA JTAG pins are dedicated pins that can't be driven from logic.

  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    I search a solution to store a programming file in aletra cyclone III starter Board and to use it to configure a second board (jtag Header to configure it).

    May be i can use HSMC !!!!!!
  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    There are some JTAG signals on the HSMC connector, but they can only be used to add something to the board's JTAG chain. This means that your second boards would only be configurable by the kit's integrated USB blaster or JTAG connector.

    In your case, you would need to write a custom IP to read the programming file and regenerate JTAG signals. You could then use regular I/Os from the HSMC connector and connect them to the second board's JTAG header.