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Summary of change:
Testing the v3.3 units purchased recently (#316, #317, #328 & #360) with this: http://www.mmcompsys.com/download_zone/6_sensors/SEN.pdf Magnetti Marelli sensor - which is a common sensor used by the likes of Omex and MM themselves. Its resistance was measured at ~620 Ohms. * A scope trace shows a good AC signal ~(+/-10V) on VR InputTrigger ** measure the input signal mean value, in DC setting. Eg. if the signal just slighly goes under 0V (eg. minimum is -20mV) for some reason, that would explain all. A '''scope in AC mode does not show this'''. * same config (from MembersPage/JimW/ExampleConfig ). ** please issue the (Man) mdv, mdV, mcd and mct '''for each''' and save the result, and publish. Very important to see the config that was actually read back * all have been loaded with firmware v1.0.23 and the * verify firmware integrity (eg. prog.pl without "w" option) '''for each''' * if you unclamp any ** check resistor ad LM1815 pin7 (first check that it exists, than maybe measure resistance, should be 100..180k) ** with scope, '''measure on LM1815pin3 and LM1815pin12'''. DC mode is needed to see if signal goes below GND ** check LM1815pin5: (the 3-pad SMD jumper) isn't it connected (solderblob) to either GND or +5V ? It shouldn't, and it's unlikely to explain anyway. ** don't clamp it unless the problem has been identified and fixed * #316 (primary&secondary VR) and #328 (VR primary/Hall Secondary) read the engine speed perfectly * #317 & #360 show no engine speed ** there has never been a problem with primary trigger with assembled controllers earlier (they get tested, with appr +-5V signal, lower than yours), so 2 out of 4 is extremely surprising, suggests another round of careful testing and reporting details. ** publish a few seconds of the serial-output after ''Man mdf01 mdkff'' when the trigger signal is applied. This reveals if the trigger gets input.
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