Schematic Problem (Beginner)

Discussion in 'VHDL' started by fabicenn, Jul 3, 2006.

  1. fabicenn

    fabicenn

    Joined:
    Jul 3, 2006
    Messages:
    2
    Hi
    I'm new in CPLD and FPGA world
    I have an application with XC9572 in PC84 package.
    My problem is that if I make "and" from two signal and "nand" from the same signal I have the right wave in output simulation (one inv to the other), but when I make this in the phisic CPLD I have the same output not inv (like nand operation)!!!!
    I have make this with isewebpack 7.1 and its schematic editor.
    Can you help me?
    I thanks all previusly
    fabicenn, Jul 3, 2006
    #1
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