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Altera_Forum
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13 years ago

Fixed point arithmetic not working for digital signal processing application

Hi, I am currently trying to do some simple digital signal processing using the Terasic AD/DA card attached to the Terasic DE0 board (which has a Cyclone III on board). My situation is that I a...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

We can see that by assembling the top and bottom of the blue curve, we get the right sine wave. This is observed for all factor I have tried. Inverting the sign bit in the signed number "level_B_op" and "level_A_op" does not yield the desired result, but comes close.