• How to set baud rate for serial link using AT-commands?
  • How to set baud rate for serial link using AT-commands?

    danford > 08-21-2024, 11:49 AM

    I want to use the vLinker FS USB to listen to OBD2 messages on a Ford Transit Connect 2010. This works, but I get a buffer full situation.

    I am looking for information on how to increase the transfer speed between the vLinker FS and the PC. The default speed seems to 115200.

    I have tried the AT BRD command, but it does not seem to be supported. 

    How can I configure the vLinker FS to use a higher speed for the data flow towards the PC? Is there some AT-command that can be used? I know Forscan can increase the baud rate above 115200, so I am sure there is a way to do this. How is it done? Smile

    Here are more details on my setup:

    I am using Linux and for testing I am using the minicom terminal emulator for sending AT commands. 

    After configuring the vLinker FS using these commands, I use the AT MA command to start listening. I receive around 480 messages before the vLinker FS reports "BUFFER FULL" and exits the monitor mode.

    AT Z    # Reset
    AT D    # Default
    AT SP 6 # Set Protocol
    AT CFC1 # Flowcontrol
    AT D1  # Show DLC
    AT AL  # Allow long messages
    AT H1  # Show headers
    AT CAF0 # Disable Formatting
    AT L0  # Disable linefeeds
    AT S0  # Remove whitespace

    The above commands are taken from here: 
    https://stackoverflow.com/questions/5218...bytes-long


    After sending the AT MA command, I receive around 480 messages and then this happens:

    ...
    23E87D1F47D1F47D3B5F
    23A8753006FE6E310B70
    00AD060
    BUFFER FULL

    >
  • RE: How to set baud rate for serial link using AT-commands?

    admin > 08-22-2024, 01:21 AM

    (08-21-2024, 11:49 AM)danford Wrote: I want to use the vLinker FS USB to listen to OBD2 messages on a Ford Transit Connect 2010. This works, but I get a buffer full situation.

    I am looking for information on how to increase the transfer speed between the vLinker FS and the PC. The default speed seems to 115200.

    I have tried the AT BRD command, but it does not seem to be supported. 

    How can I configure the vLinker FS to use a higher speed for the data flow towards the PC? Is there some AT-command that can be used? I know Forscan can increase the baud rate above 115200, so I am sure there is a way to do this. How is it done? Smile

    Here are more details on my setup:

    I am using Linux and for testing I am using the minicom terminal emulator for sending AT commands. 

    After configuring the vLinker FS using these commands, I use the AT MA command to start listening. I receive around 480 messages before the vLinker FS reports "BUFFER FULL" and exits the monitor mode.

    AT Z    # Reset
    AT D    # Default
    AT SP 6 # Set Protocol
    AT CFC1 # Flowcontrol
    AT D1  # Show DLC
    AT AL  # Allow long messages
    AT H1  # Show headers
    AT CAF0 # Disable Formatting
    AT L0  # Disable linefeeds
    AT S0  # Remove whitespace

    The above commands are taken from here: 
    https://stackoverflow.com/questions/5218...bytes-long


    After sending the AT MA command, I receive around 480 messages and then this happens:

    ...
    23E87D1F47D1F47D3B5F
    23A8753006FE6E310B70
    00AD060
    BUFFER FULL

    >
    We have a free tool to modify the baud rate of your product, please contact support@vgate.com.cn and he will send you the tool.
  • RE: How to set baud rate for serial link using AT-commands?

    annata0215 > 03-24-2025, 09:06 AM

    Setting the baud rate for a serial link using AT commands depends on the specific modem or module you are using
    Love Pawsona
  • RE: How to set baud rate for serial link using AT-commands?

    Isabella > 04-29-2025, 08:22 AM

    What specific AT commands or configuration settings can I use to increase the baud rate on the vLinker FS beyond the default 115200, and are there any recommended practices to prevent the "BUFFER FULL" issue when monitoring OBD2 messages on my Ford Transit Connect 2010?papa's scooperia