• 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?

    natalie219 > 02-25-2025, 02:15 PM

    Maybe an AT command without documentation? Snow Rider 3D
  • 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