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Altera_Forum's avatar
Altera_Forum
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15 years ago

How to make DDS with NCO megacore function?

I try to make square wave with NCO Megacore Function as below. But, The square wave is not good for use like dds. How to make square wave like ad9850 dds ----- below is VHDL Code -------...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

it wasn't clear that you wanted pulse and sine outputs. in this case i recommend building your own NCO so you have access to the phase accumulator output where you can more easily derive a pulse wave