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rupenman436
Observer
Observer
10,663 Views
Registered: ‎12-24-2009

About common anode 7 segment display using expansion connector in Spartan 3E

I have successfully observed the output of common cathode 7 segment display using expansion connector in spartan 3e. But when I used the same concept for common anode, the output didn't appear as I expected though the in-built LED of the FPGA board shows the correct decision. I need the help for this problem as soon as possible. Please help me with your replies as soon as possible.

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rlewis65
Explorer
Explorer
10,658 Views
Registered: ‎12-31-2012

For common anode you need to pull each cathode to logic 0

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I like these books:
Free Range VHDL (free), http://www.freerangefactory.org/site/pmwiki.php/Main/Books
VHDL for Logic Synthesis, Andrew Rushton
FPGA Prototyping by VHDL Examples, Pong P Chu
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