RPM/input capture

[peter paul fenske]

>Hello again Cliff
>Been thinking about what you posted.
>U r rite about resolution increasing with increased period between
>captures. Also as the engine enters a lower rpm regime there is much
>greater processor time between ign ref pulses.
>With this in mind during the rpm calc using a break point equiv to
>rpm about 2000 rpm. you could double the resolution of you calculations
>at least. The increment in rpm could be as low as 5 rpm. Believe it
>not this has been giving me fits in the control part of the IAC as I
>have found 25 rpm increments lead to limit cycle oscillations in 
>idle speed.
>Tnx much:
>peter