Development Of Can Applications - Embest SBC8600B User Manual

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compilation;

arm-linux-gcc led_acc.c -o led_acc
3） Download the compiled files to SBC8600B and enter the directory where the file
led_acc is saved, and then execute the following instruction to run LED
application;

./led_acc &

3.12.2 Development of CAN Applications

1） Defining Data to Be Sent;
The syntax for CAN frame definition is "<can_id>#{R|data}"; CAN_ID could be a 3-bit
(standard frame) or 8-bit (extended frame) hexadecimal format; Data could be a 0 to 8-bit
hexadecimal format (can be separated with separators ".").
Often used syntax:
char *cmd_str = "123#1122334455667788";
char *cmd_str = "123#11.22.33.44.55.66.77.88"
char *cmd_str = "12345678#112233"
2） Creating Sockets;
Before CAN network is ready to function, you need to create a socket first.
SocketCAN introduces a new protocol family, so it is necessary to include PF_CAN as a
parameter when calling the function socket(). Currently there are two CAN protocols
available, one is Raw Socket protocol, the other is BCM (Broadcast Manager).
For example:
s = socket(PF_CAN, SOCK_RAW, CAN_RAW);
After successfully creating a socket, you typically nened to use the function bind() to
create a binding between the socket and a CAN interface. After binding (CAN_RAW) or
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Example Application
SBC8600B-UM-V2.0
90