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J1939 Standard Joystick Message Configuration
The SAE document Vehicle Application Layer – J1939-71 (through 2001), Revised 2003-12 defines six joystick mes-
sages: three basic joystick messages (BJM) and three extended joystick messages (EJM). Each BJM provides fields for
two axes (x and y) and twelve buttons. Each EJM provides fields for three axes (x-grip, y-grip and theta). EJM messages
do not support buttons.
Selecting
Configure Joystick Message
(option 8) from the main menu displays the menu shown in Figure 2
Figure 2:
Basic/Extended Joystick
Message Setup Menu
Transmit Enable/Disable
(option 1) allows you to enable/disable transmission of the six messages individually as
shown in Figure 3.
Figure 3:
BJM/EJM Transmit En-
able/Disable Setup Menu
CANbus Setup Menu:
1—Primary Address
2—Arbitrary Address Capable
3—Vehicle System Instance
4—Function Instance
5—ECU Instance
6—PGN Repetition Interval
7—Toggle Prop. Or Joystick Message
8—Configure Joystick Message
0—Exit
CANbus Setup Menu:
1—Primary Address
2—Arbitrary Address Capable
3—Vehicle System Instance
4—Function Instance
5—ECU Instance
6—PGN Repetition Interval
7—Toggle Prop. Or Joystick Message
8—Configure Joystick Message
1—Transmit Enable/Disable
0—Exit
Transmit Enable / Disable
