At 09:59 AM 11/20/2003 -0800, you wrote:
>I need to do sin() and cos() functions in a PIC chip, but much faster
>than the 3 ms time required by the CCS C compiler. Any advice on how
>this is done with less precision and much more speed? I need
>three-byte integers.

Hi, Bryan:-

How about a LUT with linear interpolation? Sin and Cos can be done with
a single quadrant of storage (say, sin(x) from 0 to pi/2), by manipulating
the angle beforehand.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

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