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Switching between BLE and Zigbee modes on the CC2650

Nick Phillpot
Prodigy 30 points
Other Parts Discussed in Thread: CC2650

I  need 100  CC2650 devices to remain in BLE mode 99% of the time but to switch to Zigbee to enable a mesh for a few seconds once an hour then switch back to BLE mode by switching between the different stacks stored on a external flash, is it possible ?

  • 0
    TI__Genius 9325 points
    Hi Nick,

    Theoretically it's possible to have two complete images in the external flash memory and alternately copy one image into the flash memory to run. However, we don't have a bootloader that can do such a job.
    By the way, the BLE connection will be gone if it's away from the synchronization and back in your case. You may need to re-establish the connection every time coming back from ZigBee mode.

    - Cetri
  • 0 in reply to Cetri
    Prodigy 30 points

    Hi,

    Thanks form your reply, the BLE connection would'nt be a problem as the BLE connection might be only once a week to update the operating parameters of all the nodes.

    What I need is that any "one" of the 100 devices would be able to initiate a connection with a phone app then once an hour the devices would switch to Zigbee to upload the new parameters that the "one" received to all the devices.

    So if the Downloader on the CC2650 cannot initiate and perform the swap from zigbee to BLE and back I would need to add a simple micro that would perform this function of swapping the image file from an external flash.

    If thats possible how many times would I be able to re-write the image file, what is the limit for the flash ?

    Regards

  • 0 in reply to Nick Phillpot
    TI__Genius 9325 points
    Hi Nick,

    From the datasheet, CC2650 supports 100,000 cycles of flash erase before failure.

    - Cetri