How can I speed this code up? SHIFTOUT is slowing it down and I need a faster way.

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  1. - 18th May 2010, 06:33 #27
    Mike, K8LH's Avatar
    Mike, K8LH
    Mike, K8LH is offline Member
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    Son of a gun, that works (please note that T0CKI is RB6 on a 16F88).

    The three cycle loop 'overhead' (BTFSS & GOTO) is a bottleneck. You could get better performance if you spread it out over more pulses. If you were to produce 16 pulses within the loop then you could use a single byte variable counter instead of Timer 1 and bump the output up to 2+ MHz.

    Regards, Mike
    Last edited by Mike, K8LH; - 18th May 2010 at 07:13.
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