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Transition to RUN from STOP for A7 core (Linux).  

Question asked by Juan Brea on Feb 10, 2017
Latest reply on Feb 10, 2017 by Juan Brea

We are investigating methods for fastest transition to RUN from STOP for A7 core (Linux).    

  1. If an external 24MHz clock is used instead of the XTAL, will it speed up our wake time by avoiding the requirement for xtal lock  (XTALOSC_CTRL_24 register has bits for CLKGATE_DELAY and XTALOSC_PWRUP_DELAY—could we use the fastest selections)?
  2. If we instead leave the 24MHz xtal running, what would be the expected power impact?