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Altera_Forum's avatar
Altera_Forum
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14 years ago

Arbitrary Waveform Generator

Hi, Im trying to build an arbitrary waveform generator using the Stratix-III DSP development kit. I have been successful at outputting a sine wave using the NCO megafunction, but is there a way for m...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

The nco ip may have one of several LUT configurations e.g. full cycle or quarter or even small table in which case intermediate values will be interpolated by the ip. In all cases if you match the table with your waveforms then it could be possible to run your waveforms instead of sine wave.

The problem would be how to do that match? So it might be much easier not to hack into the ip at all.

It may even use cordic structure which wouldn't suit the case.