User manual

17 GR-LEON4-ITX Development Board
User Manual
Configuration of Bus Termination
The CAN interfaces on the board can be configured for either end node or stub-node
operation by means of the jumpers JP8 and JP7 for interface 0 and 1 respectively, as shown
in Figure 2-12.
For normal end-node termination with a nominal 120 Ohm insert jumpers in position 1-3.
However, if a split termination is desired (if required for improved EMC performance), insert
the jumpers in positions 1-2 and 3-4.
For stub nodes, if termination is not required, do not install any jumpers.
© Aeroflex Gaisler AB August 2010, Rev. 0.3
Figure 2-11: Block Diagram of the CAN interface
CAN
TRANSCEIVER
CAN
TRANSCEIVER
CAN_H
CAN_L
TXD
RXD
CAN
interface 0
CAN
TRANSCEIVER
CAN
TRANSCEIVER
CAN_H
CAN_L
TXD
RXD
CAN
interface 1
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