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CC2540 as CDC Ethernet Device

Greenja
Guru 22270 points
Other Parts Discussed in Thread: CC2540

Hello,

I would like to know if it would be possible to use the CC2540 USB Dongle and connect it to an Ethernet router that has a USB port.  The closest thing I could find was a CDC Ethernet emulation. http://www.usb.org/developers/devclass_docs/CDC_EEM10.pdf

 The idea is to do a IoT without having to go through a gateway.  I would like to use the Dongle in the same way I would use the USB port on a laptop to connect to an internet router that has a USB port.  

I haven't been able to find any information on what protocol the Ethernet Router USB port uses, but if there is a CDC Ethernet I'm hoping all routers use the same emulation. 

Is this at all possible?

Thanks,

  • 0
    Guru 22270 points

    Just realized that the Dongle would have to be a host controller to connect with the Ethernet router USB.

    it now seems unlikely that the CC2540 could operate as a host controller, handle the Ethernet protocal and BLE at the same time.

    There is an example of a host controller running on an 8-bit MCU, so perhaps I will start there and see if it is portable to the CC2540. http://people.ece.cornell.edu/land/courses/eceprojectsland/STUDENTPROJ/2007to2008/blh36_cdl28_dct23/index.html

  • 0 in reply to Greenja
    TI__Mastermind 29650 points

    Greenja,

    Most routers do only support mass storage through the USB port.

    Also, I doubt the CC2540 will have neither enough processing power nor enough Flash/RAM to handle this.

    Regards,
    Svend