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Altera_Forum's avatar
Altera_Forum
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16 years ago

NCO:Sine Waveform

Hi. I am trying to use the NCO to generate the sine waveform. However, the waveform obtained is different where it is attached. May i know where to modify it in order to get the correct the sine wave...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

FvM,

I can't modify the CORDIC algorithm since i use the NCO provided in Megafunction. Besides, i try to use multiplier as a algorithm to replace CORDIC, the problem still exists.

Fourier,

As you propose, i try to simulate it on modelsim Altera, i get an error on:

Error: Can't generate netlist output files because the file "E:/Quartus II Project/Waveform/Sin_Cos_Wave/Parellel_CORDIC/sin_10_8/sin25MHz/incremental_db/compiled_partitions/sin_10_8_25MHz.root_partition.map.atm" is an OpenCore Plus time-limited file

Any idea to solve it in order to simulate in Modelsim?

Thanks