Eurotech BoltGATE 20-25, User Manual

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BoltGATE 20-25 User Manual Rev. 1-1 10 How to Access the Interfaces Under Linux
10.6 CAN
The BoltGATE 20-25 exposes the CAN as follows:
l
CAN 1:
can0
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CAN 2: can1
CAN ports are added through the SocketCAN kernel extension.
For further information on SocketCAN refer to the Linux kernel documentation:
www.kernel.org/doc/Documentation/networking/can.txt
10.6.1 How to Enable the CAN Bus 5V
To enable can0 5V, enter the following command:
echo 1 >/dev/canbus1_power/value
To enable can1 5V, enter the following command:
echo 1 >/dev/canbus2_power/value
10.6.2 How to Setup a CAN Port
To setup a CAN port, enter the following commands:
#Set CAN0 to work at 125 kbps
ip link set can0 type can bitrate 125000
#Open the connection
ip link set up can0
10.6.3 How to Send / Receive a Message Via a CAN Port
Example: Sending/receiving a message via a CAN port (once the CAN port has been setup)
#Send a byte via CAN0
cansend can0 001#FF.FF.FF.01
#Example of received message on CAN0
candump can0
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