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Summary of change:
'''Issue''' IGN output behavior changes with RPM and # of cylinders. * Firmware 1.0.23, Megatune r27 and r30 all show same results * Firmware is precomiled from website version 1.0.23 '''History''' I found this issue when attempting to functional check a unit prior to configuration. Initial reports suggested that it was a bad trigger signal (benchtop generation). Resolved this problem and '''now can generate a proper 60-2 wheel VAG style without any wheel count errors.''' '''Description of issues''' * Given: [MembersPage/GrmRacer/TurboSetup/TurboConfig Config] firmware, and tables ** there is an output channel conflict: misc1out_channel=06 and misc2out_channel=06. Also, you might want to change the disabled channels for FF (although xF shouldn't cause problem) ** divider=02 why ? (should be 01 right ?) ** try to configure tooth_wheel_twidth1, tooth_wheel_twidth2 and reset_engphase_after properly (although shouldn't matter with secondary_trigger=02 thus disabled) * Issue is a function of # of cylinders, RPM, and default Megatune IGN output behavior. * Under Idle conditions, ie. < 1500 RPM for a wasted spark ( 2 outputs alternating) works fine for any setting. If the RPM goes above a threshold (41Hz for 4 clyn, 29Hz for a 8 clyn). the output changes to include other non-configured output. '''Current experiment''' Reflash VEMS v3.3 with new firmware 1.0.23 first then use the latest release. Firmware version 1.0.23 as downloaded from filethingie * no recompilation done * configs & Table changed using MegaTune (r30) only * pretending to be end user trying to get board setup * I also don't want to go thru the toolchain setup to do it. ---------------- Problem is that the number of outputs driven changes when a factor of RPM and # of clyns and #of IGN outputs selected '''Original configuration to find problem''' Basic description is the Ingnition outputs were set in ''Ignition Settings'' Outputs to use in h[2] set to [7..0] *Ingnition ouputs set to **0 Drive00 **1 Drive01 **2 Drive02 **3 Drive03 **4 Drive04 **5 Drive05 **6 Drive06 **7 Drive07 ''Yes I know this is not valid for a wasted spark BUT, it produces bad output. '' **above 41Hz(~2500rpm) with an 8 clyn setup. Note that another_trigger_tooth=1E doesn't seem good for 8cyl. Please provide all the configs you used. **above 29Hz(~1650RPM) with a 4 clyn setup Symptom above these values all IGN outputs that are set are triggered else only 2 outputs are triggered. ''if Ignition Settings '' *outputs to use in h[2] is set to [1..0] symptom goes away. '' if Ignition Settings '' *outputs to use in h[2] is set to [2..0] three outputs trigger above 41Hz(4clyn) '' if Ignition Settings '' *outputs to use in h[2] is set to [3..0] four outputs trigger above 41Hz(4clyn) * * '' if Ignition Settings '' *outputs to use in h[2] is set to [7..0] 8 outputs trigger above 41Hz(4clyn) -----------------
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