at command mdot

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  • July 7, 2019 at 4:47 pm #28148
    benmessaoudimene@outlook.com
    Participant

    I am beginner with the mdot
    i am currently configuring the mdot module with AT commands with the Tera Term emulator
    I have chosen the right port and 115200 baud but I can not write anything in the terminal

    July 8, 2019 at 9:39 am #28152
    Steve Kovarik
    Moderator

    Hi
    Are you using the mDot in a MultiTech MTUDK2-ST-MDOT Developer board?
    Teraterm should be configured for 115200, 8, none, 1 with hardware flow
    control disabled.
    If using in a MTUDK2-ST-MDOT with a physical DB9 serial port, you are
    required to issue AT Commands through the DB9 serial interface.
    If you have a MTUDK2-ST-MDOT with just the micro USB interface, the board
    should enumerate two virtual serial ports.(USB Serial device and XR USB Port)
    Use the “XR USB Port” to issue AT Commands to the mDot.

    -Best Regards

    July 8, 2019 at 10:04 am #28153
    benmessaoudimene@outlook.com
    Participant

    yes sir it was MultiTech MTUDK2-ST-MDOT Developer board
    speed 115200
    data 8 bit
    parity none
    stop bits 1
    flow control none

    Ijust connected the board with a micro USB to the PC
    i can’t command it by just the micro USB ?
    what I should do?

    July 8, 2019 at 2:06 pm #28162
    Steve Kovarik
    Moderator

    Which Windows OS?
    Did you load drivers?
    Does the mDot successfully enumerate the two ports (USB Serial device and XR USB Port)
    It should also show up as a drive on windows.
    For example… MULTITECH(D:)

    You should open a support ticket.
    https://support.multitech.com/support/login.html

    July 8, 2019 at 3:16 pm #28166
    benmessaoudimene@outlook.com
    Participant

    hi
    windows 8 x64
    yes I have loaded the drivers of MTUDK2-ST-MDOT Developer board and the module mdot
    and it is sucessfuly shown as a drive however it does not enumarte the two ports

    July 8, 2019 at 3:35 pm #28179
    Steve Kovarik
    Moderator

    Load the XR driver first, then plug in the MTUDK2-ST-MTDOT developer board.

    Click this link to download and install the appropriate Windows USB driver for EXAR xr21b1411 on the Exar website at: https://www.exar.com/content/document.ashx?id=1596

    July 9, 2019 at 10:16 am #28191
    benmessaoudimene@outlook.com
    Participant

    thank you sir
    it works
    but when I write at+freq
    it display US915
    and i work in 868 MHZ in EU (france)
    and even it is mentioned on the module mdot “model mdot 868”
    I modified : network name and passphrase and subband=1 in eu
    but it can’t joined because doesn’t the same frequency

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