minimalistic sine wave generation algorithmn

[chris]

The generation algorithmen needs only one multiplication and 3 additions.
( there is also a division through 65536 but this is only for scaling
to integer reasons. The division may be replaced by a shift operation
and a compare to keep the sign )

History:
I was trying to simulate a spring-mass-system. It was possible to
reduce the equations for this system to the algorthmen below to generate a
sine wave.

[chris]

My further optimized version.
A discussion about this topic you can find here:
http://www.mikrocontroller.net/topic/324429#3534636

[chris]

Diagram for DDS sin wave generation:
http://www.96khz.org/oldpages/limitsofdds.htm

[chris]

Fast int16 sine wave calculation in C:
http://www.atwillys.de/content/cc/sine- ... dded-in-c/