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PauloGoulart's avatar
PauloGoulart
Icon for New Contributor rankNew Contributor
4 years ago

MAX+plus II error

programming EPM7064lc44 with MAX plus, get an error if change the device to EPM7064SLC44.

Error Message: Logic Array Block A requires too many I/O pins as a result of user assignments.

OK to Ignore, Chips/Pins/LCs, then it compiles. any ideas why MAX7000 and MAX7000S are so different?

2 Replies

  • MBenca's avatar
    MBenca
    Icon for Occasional Contributor rankOccasional Contributor
    4 years ago

    Hi Paulo,
    EPM7064 and EPM7064S devices have the same gates count, macrocells count, maximum user I/O pins and device pinout. But there is JTAG interface available for MAX 7000S only. When the JTAG interface in MAX 7000S devices is used for in-system programming, four I/O pins become JTAG pins. What is the JTAG interface settings in MAX+PLUS II?

    Regards,
    Martin