EFI algorithms
peter paul fenske
pfenske at direct.ca
Thu Jun 13 20:32:26 GMT 1996
>Hi Pete
>First off the AD is used for several variables not all in the same range.
>this makes hardware scaling academic>
>2. If a hardware change is not possible, and memory is not a problem, a
>lookup table is the way to go. It's much faster.
>
>I can't see what you're trying to do in the second part. Maybe if it were a
>little clearer...Or I could look at the code. The idea sounds ok. Is there
>a problem with timer resolution?
>
>I think with some supplied help I have that licked. Basically you find
>the differences between two timing interrupts and divide by the smallest
>time between desired increments. For a 25 rpm scale divide whatever
>you have for a period between ignition pulses by the time in tics
>between 6376 and 6400 rpm. What I will do now is modify this
>routine to give me finer resolution at lower rpms. There was a
>prob with eight bits rep 255 steps of 25 rpm from 0 to 6375 rpm.
>Still trying to figure out how to post code. Relatively new to
>netscape et al.
>Hope this helps...
>
>Pete S.
>
>Tnx everyone:peter
>
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