1.4 KiB
NMEA 2000 EFI driver
This driver implements support for marine EFI systems using NMEA 2000 CAN messages.
Parameters
The script used the following parameters:
EFI_2K_ENABLE
this must be set to 1 to enable the driver
EFI_2K_OPTIONS
This sets options for the driver. Currently the only option is to set EFI_2K_OPTIONS to 1 to enable logging of the raw CAN frames for debugging purposes.
Operation
This driver should be loaded by placing the lua script in the APM/SCRIPTS directory on the microSD card, which can be done either directly or via MAVFTP. The NMEA_2000.lua module from AP_Scripting/modules/ also needs to be put in the APM/SCRIPTS/MODULES directory.
The following key parameters should be set:
- SCR_ENABLE should be set to 1
- EFI_TYPE should be set to 7
- EFI_2K_ENABLE should be set to 1
- EFI_2K_CANDRV needs to be set to the CAN driver number
- CAN_Pn_BITRATE needs to be set to 250000
- CAN_Dn_PROTOOCOL needs to be set to 10 for scripting
then the flight controller should rebooted and parameters should be refreshed.
Once loaded the EFI_2K_ENABLE parameters will appear and should be set according to the parameter list above.
The GCS will receive EFI_STATUS MAVLink messages which includes RPM, cylinder head temperature, exhaust gas temperature, injection timing, engine load, fuel consumption rate, throttle position atmospheric pressure and ignition voltage.