DIYEFI.org Forum

:-)

I was rather hoping for a longer reply than a smiley. Like a better explanation of Output Events, OutputEventPinNumbers, Arrays .

Please ?

Pretty Please ?

Things to keep in mind:
The 6 timer outputs which can be used for ignition or injection are on Port T2-T7:
Port T2 = outputEventPinNumbers #0
Port T3 = outputEventPinNumbers #1
Port T4 = outputEventPinNumbers #2
Port T5 = outputEventPinNumbers #3
Port T6 = outputEventPinNumbers #4
Port T7 = outputEventPinNumbers #5

Also note this is the first n-1 crank wheel configuration that I have attempted to configure in the firmware, so there may be errors in my logic.

whizzo944 wrote:anglesOfTDC: {ANGLE(0), ANGLE(90), ANGLE(0), ANGLE(90)},

This means that two cylinders are at TDC at 0 degrees and then the other two are at TDC at 90 degrees of the crank. If this isn't correct then the angles need to be changed.

whizzo944 wrote:outputEventPinNumbers: {0,1,2,3,4,5,4,5}, // Wasted Spark and semi-sequential

the number of elements in this array should be equal to the number of anglesOfTDC, so there should be 4 elements, ie: This is true if you are using one of my Jaguar 0.7-alpha PCBs since:
the first two ignitor outputs are on the first two timer outputs (T2 =0 and T3 = 1)
the first two injection outputs that you can use are T4 = 2 and T5 = 3 and these would need to be jumpered from the Port T4-7 pads (the square pad is Port T4) to the appropriate "Injectors-IN" pads in the "Injector Drivers" section.

whizzo944 wrote:schedulingConfigurationBits: {0,0,1,1}, // First two ignition, last two fuel

this is correct based on the previous array configurations above.

whizzo944 wrote:decoderEngineOffset: ANGLE(70.00), //

This should be 0.00 until you measure the actual angle using a timing light while cranking without the injectors connected. You don't want the engine to try to run until you are sure about this value.

whizzo944 wrote:numberOfConfiguredOutputEvents: 4, // Migrated to new way
numberOfInjectionsPerEngineCycle: 2 // Used to be batch, dead time being wrong could have affected AFRs

These look correct based on the above settings.

Hello Andy,
THANK-YOU !!!! That was the missing pieces of the puzzle. Now that I understand what the event numbers refer to,
I can compile a firmware with a degree of confidence in what I'm trying to do. The question that now remains is "Will the decoder
handle my engine speed ? " I have a test rig which I can use to find this out now.

Thanks AGAIN,

Dave.

Not if I don't release the required changes, it won't, no. Also, some of the above is plain wrong. Short on time, though. Will answer another day.