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CC2640/2650: Transition time from standby mode to active mode

Cameron Sego
Prodigy 140 points

Other Parts Discussed in Thread: CC2640

Hello all,

I am looking into building a very simple application.  I would like to wake up from standby mode every 0.05 seconds, take a measurement, do some simple processing, then go back to standby mode.  I would like to know in either cycles or seconds how long the CC2640 takes to go from standby to active mode.  Has anyone ever measured this?  Any clever ideas of how to measure this?  I am still new to CCS and the RTOS viewer capabilities, but if you could share your findings or point me in the right direction it would be much appreciated.

  • 0
    Mastermind 8415 points

    Hi Cameron,

    This datasheet says the wakeup time is 14us. Here's a previous thread that talks about it.

    As for making a measurement, you would probably need to add a routine when you enter the idle task and toggle some pin (the toggle would add extra time, but you get a ball park value). You would have an oscilloscope with a probe on the power and another on your gpio pin. I am no expert, but this question would also be better answered in the Mesh Networking Forum.

    Regards,

    Michel