3 Replies Latest reply on Aug 26, 2016 4:06 AM by JoMe_264151

    Is an external pull-up required on WAKEUP pin?


      I want to use the Stop mode of CYBLE-012011-00 in my project.


      I know that only the pins XRES and WAKEUP (P2[2] for CYBLE-012011-00) can be used to wakeup the device from stop mode.


      The question is whether if an external pull-up resistor is required on the WAKEUP pin.


      I do have an example project that seems to work with a switch attached to P2[2], P2[2] set as resistive pull up and the polarity of the wakeup pin set to active low, but I just want to check before I design my custom PCB.


      Thank you.