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CC2540: CC2540 Inquiry: Dual-Mode (BLE & Proprietary) USB HID Dongle

Mike Wu1
Genius 3271 points

Part Number: CC2540
Other Parts Discussed in Thread: CC2541

Hi Team,

My customer is designing a USB Dongle and need to confirm if the CC2540 supports the following requirements:

  1. Dual Mode Switching: Can the chip support switching between Standard BLE and Proprietary 2.4GHz modes?

  2. Proprietary Mode with USB HID: In Proprietary mode, can it function as a USB Mouse/Keyboard while also accepting configuration settings from the PC (bidirectional USB HID)?

If the CC2540 is not suitable for this application, please recommend another single-chip solution that includes BLE, Proprietary 2.4GHz, and a hardware USB interface.

Best regards,

  • 0
    TI__Genius 15554 points

    Hello Mike Wu1,

    To my knowledge the CC2540 is a BLE only USB dongle, if you want a USB dongle capable of both Proprf and BLE I would have to recommend the CC2541. 

    As for Dual mode switching this should be possible, assuming you properly setup both BLE and Proprf on the device to not interact with the radio at the same time. 

    Mike Wu1 said:
    Proprietary Mode with USB HID: In Proprietary mode, can it function as a USB Mouse/Keyboard while also accepting configuration settings from the PC (bidirectional USB HID)?

    Yes it should be possible to achieve this; though our code reference with keyboard/mouse HID only supports submitting commands to the computer, you would likely have to look at the backend of the code and create your own function to support this. 

    Thanks,
    Alex F

  • 0 in reply to Alex Fager
    Genius 3271 points

    Hi Alex, 

    Got it. Thanks.