11 | CAN Bus
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DDU 9
Bosch Motorsport
11 CAN Bus
The DDU 9 has two fully configurable CAN buses.
– Baudrate (125 kbaud to 1 Mbaud)
– 11 Bit or 29 Bit identifiers
– Input configuration: Read messages from CAN bus and convert to DDU 9 measure-
ment/display variables. CAN bus supports row counter configuration.
– Output configuration: Write RaceCon measurement variables to CAN messages, out-
put frequency and row counter are configurable, CAN gateway functionality (transfer
from one bus to another).
11.1 CAN bus trivia
CAN message
– 11 Bit (standard) or 29 Bit (extended) identifier
– Up to 8 bytes of data payload
CAN bus
– Needs termination resistors (120 Ohm) in wiring harness
– All devices connected to the bus, must use identical data rate
– Configuration of bus data rate in the ‘CAN messages overview’ menu. To access the
menu, double-click on one of the CAN bus items of the project tree (1 Mbaud, 500
kbaud, 250 kbaud, 125 kbaud).
CAN item drop-down menu
Click with the right mouse button on the desired CAN bus to open the CAN bus drop-
down menu.