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CC3000 fast reconnect time

David Eberli
Intellectual 595 points

Hi,

We tyring to figure out how long the the CC3000 needs to reconnect to an AP using the fast reconnect feature. I know it depends on the network type and link quality but does someone has some average numbers? I have read somewhere something like 800ms, is this correct?

We like to send a few bytes every 10s. To save energy we need to put the device into sleep mode between the transmissions.

Thanks!

David

  • 0
    TI__Mastermind 27095 points

    Hi David,

    We do not have the exact average values for this. As you said, it varies depending on different parameters. Can you please point us to the source where you found it to be 800ms?

    Thanks & Regards,
    Raghavendra

     

  • 0 in reply to Raghavendra Shenoy
    Intellectual 595 points

    Hi Raghavendra

    I have read the 800ms time somewhere in the deep Internet. Unfortunately I haven't found it again. I want to do some reconnection tests on my own. But I haven't get that far.

    It seems that the cc3000 firmware (SP 1.12) and driver (V.1.12) are not really stable. Randomly my devices hangs after a command was send to the cc3000.
    I think I have the same problem as described in the Thread "CC3000 and drivers intermittent problem"

    It would be great if there there will be a usable patch ready soon. Do you have any information about a new patch?

    Thanks

    David

  • 0 in reply to Raghavendra Shenoy
    Expert 2260 points

    Raghavendra Shenoy Mathav said:
    We do not have the exact average values for this. As you said, it varies depending on different parameters. Can you please point us to the source where you found it to be 800ms?

    See this document:: http://www.lsr.com/downloads/products/330-0099.pdf

    They measured:

    Boot time (wlan_start()): ~700 ms

    Auto Connect (wlan_ioctl_set_connection_policy(0, 0, 1)) : 2.75 s

    Manual Connect (wlan_connect()): 1.44 s. 

    Fast Auto Commect (wlan_ioctl_set_connection_policy(0, 1, 1)): 780 ms

    David Eberli said:
    Unfortunately I haven't found it again. I want to do some reconnection tests on my own.

    I would be interested in hearing your results, if you find the time to perform tests.