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CC2540DK-MINI Master USB Dongle not detected

Peter Wiley-Cordone
Prodigy 30 points
Other Parts Discussed in Thread: CC2540

I purchased a CC2540DK-MINI kit but when I plug in the master USB dongle, it's never detected by windows xp and the USB driver never loads.  I installed Btool and the flash programmer as the user manual indicated.  I'm starting to think that there is something wrong with the USB dongle.  I can plug in the debugger and updated the firmware on it (I was prompted to do so when I plugged it in).

Does anyone have any insight?  I'm new to the tools and wondering if I can reflash the master USB dongle, but I don't know where the hex file is and am not sure if I can do that.  Any help is greatly appreciated.

Peter

  • 0
    Guru 31280 points

    Hi,

     

    The precompiled FW for master USB dongle can be found here:

    C:\Texas Instruments\BLE-CC2540\Accessories\Hex_Files\cc2540_ble1.0_master_usb_dongle.hex

     

    You can use a CC debugger to flush this image into USB dongle.

  • 0
    Prodigy 130 points

    I am experiencing the same thing, the OS doesn't see the USB dongle.  I just received the devkit, unpacked it and plugged the dongle into an active USB port, the green LED on the dongle lights up, but the OS doesn't see it.  I plugged it into my Mac where I can see devices on the USB bus using USB Prober, and the dongle doesn't show up.  Does it need to be flashed with some image first? 

  • 0 in reply to Don Clark
    Guru 31280 points

    Hi,

     

    The USB dongle should be distributed with a preprogrammed FW.

    In any case you can always flush the image I was pointing to in my

    previous post in this thread.

  • 0 in reply to Igor Sherer
    Prodigy 30 points

    I was able to flash the firmware, detect the dongle and run BTool.  Thanks for your help.  I've been mucking with it for a couple days.

    Pete

  • 0 in reply to Igor Sherer
    Prodigy 130 points

    First, the path on my development machine uses BLE-CC2540-1.1a as the installation folder name.  In the Hex_Files folder under Accessories there isn't a file with the same name as in your posting.  There is, however, another named cc2540_ble1.1_USBdongle_HostTestRelease_Master.hx.  That's the only file there with "dongle" in the name.  I did flash that one into the dongle, and it seemed to succeed, except that after completion the dongle went off the bus, came back on, the Win7 system attempted to install the driver, failed, and now the LED on the dongle is red!  Shows up in Device Manager as an unknown device.  I went back to Device Manager and installed a new driver, pointing the DM to c:\Texas Instruments\BLE-CC2540-1.1a\Accessories\Drivers.  The LED on the dongle is still red, but the device now shows up as a COM port, with a device name of "TI CC2540 Low-Power RF to USB CDC Serial Port".

  • 0 in reply to Don Clark
    Guru 31280 points

    Hi Don,

     

    With the new FW flushed, are you able to run the B-tool?

    By the way, the FW you flushed is the one I meant to, you have the latest version of the stack,

    so it should be "cc2540_ble1.1_USBdongle_HostTestRelease_Master.hex", as you mentioned.