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TivaWare usb-dev-serial -example is not working

ilari Virta
Prodigy 20 points
Other Parts Discussed in Thread: EK-TM4C123GXL, EK-TM4C1294XL

Hello,

Any ideas how can I get the TivaWare usb-dev-serial -example to work with Tiva Launchpad? The example compiles and can be flashed but when I put the usb-plug to non-debug usb-socket Windows won't recognize it as a virtual-serial -device. Usb-dev-bulk -example is working just as it should, and device-manager lists it as a bulk-device. What could be wrong?

-Ilari

  • 0
    Guru 92251 points

    ilari Virta said:
    The example compiles and can be flashed but when I put the usb-plug to non-debug usb-socket Windows won't recognize it as a virtual-serial -device.

    Does it show up in the Windows device manager as an unknown device, or not show up at all?

    For the usb-dev-serial example, once enumerated you have to get Windows to load the driver in the windows_driver sub-directory of the TivaWare installation in order for the usb-dev-serial example to appear as an available COM port.

  • 0
    TI__Guru**** 244400 points
    Hello Ilari,

    If you have the tm4c-usb-dev package you would need to change the Windows device manager driver to point to the new device. If it gets recognized as something else, then ask it to update the driver.

    Regards
    Amit
  • 0 in reply to Chester Gillon
    Prodigy 20 points
    It is not listed at all which makes me wonder if there is something wrong with the code...
  • 0 in reply to ilari Virta
    Guru 92251 points

    ilari Virta said:
    It is not listed at all which makes me wonder if there is something wrong with the code

    Can you just confirm which launchpad, TivaWare version and Windows version you are using.

    Running under Windows 7 64-bit the following TivaWare_C_Series-2.1.0.12573 examples worked successfully:

    - The usb_dev_serial example on an EK-TM4C123GXL

    - The usb_dev_cserial example on an EK-TM4C1294XL