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Altera_Forum's avatar
Altera_Forum
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10 years ago

Quartus II BusMux

Hello All,

I have been riding the struggle bus on trying to implement a carry skip adder (carry bypass adder) utilizing a ripple carry chain with multiplexers. I have attached my circuit design below, hopefully it is good enough to read. My issue is that I have no idea what parameters each MUX is to be set to. The (ab) inputs are simple binary 0 or 1 depending on the sum of each ripple. I have also attached the compilation report. If anyone can help I would be grateful and I Thank You in advance.

http://www.alteraforum.com/forum/attachment.php?attachmentid=10379&stc=1

1 Reply

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

    The pictures are far to small to see anything.

    Is there any reason you are using schematics rather than HDL? Do you have a testbench for this code (you can covert your design to HDL, then simulate).