Still working on a solution between toddler attacks. Basically, all I have is on paper. I have the LoRes and HiRes signals tied together through an AND gate, going to a Flip-Flop coupled to a Exclusive OR gat to double the pulses I get (a workaround for only single edge triggering ICs), going to a 7-stage binary ripple counter (CD74HC4024E), and those outputs going to 4-input AND gates (5 of them) which decode the Lo-Res "large slots" correctly, and the 5th one for the 2 degree slots.
LT1_distributor_optical_disk.jpg
I just have to work on the switchover to a nice, mindless decade counter linked to a demultiplexer/data distributor chip which will be sending the ignition trigger pulse to the correct ignition transistor. It will only look for the leading edge of the Lo-Res signal, nothing more. The decoding gates will reset it at the 1st time, then it will recycle on its own. Switching to the simple setup will be plenty fast for anyone.....nanoseconds baby, nanoseconds. Only limit will be the ignition trigger/dwell signal from the stock ECM. Easily modified by anyone from there.
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