GCAN GCAN-208 Series, User Manual, Page: 13 / 25

Vhandy Technology GCAN-208 user manual
Icon Definition Baud rate Icon Definition Baud rate
0000 1000k 0001 800k
0010 666k 0011 500k
0100 400k 0101 250k
0110 200k 0111 125k
1000 100k 1001 80k
1010 50k 1011 40k
1100 20k 1111 13.33k
1101 10k 1110 5k
Table 3.1 GCAN-208 series module baud rate configuration diagram
3.1.2 Automatically recognize the baud rate
When the user does not know the baud rate of the CAN bus or the module cannot
work normally after setting the baud rate through the DIP switch, the automatic baud
rate recognition function can be used to identify the actual baud rate of the bus. The
specific usage method is as follows:
1. Turn all the baud rate dial switches of the GCAN-208 module to the digital side.
2. Correctly connect the GCAN-208 module to the CAN bus (ensure that the wiring is
correct and the terminal resistance is correctly added).
3. Power on the GCAN-208 module, wait until the PWR is always on and the SYS
light is flashing, use the tool to press and hold the button in the left hole of the CAN
channel as shown in the figure below, as shown in figure 3.2.
Figure 3.2 Schematic diagram of key position
4. Keep pressing the button in the hole for 3s, and release it when the CAN light turns
red and starts to flash quickly. At this time, the module is identifying the bus baud rate.
5. The recognition process will continue for a period of time. When the CAN light
turns from red to green and is always on, it means that the baud rate has been