Boardcon Embedded Design EM3568, User Manual

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Customize the embedded system based on Your Idea
7.10 CAN
Connect CAN ports of Board A and Board B with the test line.
For Board A, execute the follow commands at Serial terminal A to set CAN_A as Receiver.
# ip link set can0 down
# ip link set can0 type can bitrate 1000000 dbitrate 3000000 fd on
# ip link set can0 up
# candump can0 (set CAN0 as receive)
For Board B, execute the follow commands at Serial terminal B to set CAN_B as Transmitter.
# ip link set can0 down
# ip link set can0 type can bitrate 1000000 dbitrate 3000000 fd on
# ip link set can0 up
# cansend can0 123##1DEADBEEF (CAN0 send characters 0xDE 0xAD 0xBE 0xEF)
The Transmitter and receiver can be converted by execute the command
#
candump can0 (Receiver)
or
#
cansend can0 123#DEADBEEF (Transmitter)
7.11 RS485
Connect the RS485 ports of Board A and B with the test line.
For Board A, execute the follow commands at Serial terminal A to set RS485 as Receiver or send.
# com /dev/ttyS7 115200 8 0 1
For Board B, execute the follow commands at Serial terminal B to set RS485 as Receiver or send.
# com /dev/ttyS7 115200 8 0 1