Trans temp gauge

[nathaninwa]

I'm running a Ms3 and microsquirt together over canbus for engine and transmission control. How do I go about fetching the trans temp over canbus to display on the ms3's tuning dashboard? I see I can do something with generic inputs, but not sure what can-adc to use if that's the way to handle it

[jsmcortina]

Two steps to the process:
1. have the CAN system fetch the temp data from the trans control.
The realtime data is in block/table 7 and the trans CANid is 7.
The trans ini file shows us the offset of the transtemp data.

Code: Select all

[OutputChannels]
....
   transtemp        = scalar, S16,   10, "°F", 0.1,0

So define CANADC 1-4 to fetch from id 7, table 7, offset 10.
Then use the Generic Sensors system to convert CANADC1 into a "real value". So if using degF that would be a linear scaling 0 to 102.3. The conversion from volts to real temperature is already done inside the trans controller.
(Note that if the data had been 8 bit, that would have been a problem...)

James