3 Replies Latest reply on Aug 26, 2016 4:06 AM by user_1377889

    Is an external pull-up required on WAKEUP pin?

    jaemann.park_1817436

      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.

         

      Jaemann