
Vhandy Technology
GCAN-208 user manual
CAN2.0B extended frame
The CAN extended frame information is 13 bytes, including two parts, information
and data. The first 5 bytes are the information part.
Byte 1 is frame information. The 7th bit (FF) indicates the frame format, in the
extended frame, FF=1; the 6th bit (RTR) indicates the frame type, RTR=0 indicates
the data frame, RTR=1 indicates the remote frame; DLC indicates the transmission
The actual data length in the data frame.
Bytes 2 to 5 are message identification codes, and the upper 29 bits are valid.
Bytes 6 to 13 are the actual data of the data frame, which is invalid in the remote
frame.