Frame id for cansend

Question

The definition of cansend method in ruby is this:

cansend can0 123#1122334455667788

will send a message on interface can0 with identifier 0x123

So if I have a CAN frame like this:

<0x0000eb00> [8] 04 76 02 15 ff ff ff ff 

What is the frame id in cansend for the CAN frame above? For me the above Frame Id is "eb00" but cansend only allows 3 bytes frame ID. For example what will the cansend frame id be for example "ec22"?

Thanks!

Answer 1

For CAN 2.0 you can send either standard frames, i.e. CAN ID will have 3 hex chars or extended frames, i.e. CAN ID will have 8 hex chars.

cansend can0 123#0011

or

cansend can0 0000eb00#0011

This is true for cansend command line tool.