Megasquirt DIYPNP good RPM signal, no spark output
04-28-10, 05:59 PM
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DIYPNP good RPM signal, no spark output
Right now here's where I'm at: I'm getting a nice RPM signal, but NO spark output.
Coil select (spark C) changes from high to low, and if I set the spark output to "inverted" and reboot the MS, it will change from high to low...but Spark A and Spark D never go low to fire the coil. This is verified on an oscilloscope.
On Aaroncake's guide, he must be using a different version of the firmware because there are several differences between his guide and Megatune. I've got v2.1.0 loaded right now. I'll have to post up a few examples when my battery recharges on the laptop.
I'm thinking that since I can't select some values in Megatune, maybe part of the rotary code is missing? Should I update to one of the beta versions of the firmware to see if that changes it?
Coil select (spark C) changes from high to low, and if I set the spark output to "inverted" and reboot the MS, it will change from high to low...but Spark A and Spark D never go low to fire the coil. This is verified on an oscilloscope.
On Aaroncake's guide, he must be using a different version of the firmware because there are several differences between his guide and Megatune. I've got v2.1.0 loaded right now. I'll have to post up a few examples when my battery recharges on the laptop.
I'm thinking that since I can't select some values in Megatune, maybe part of the rotary code is missing? Should I update to one of the beta versions of the firmware to see if that changes it?
04-29-10, 12:45 PM
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