AnsweredAssumed Answered

VOSF bit confusion

Question asked by giesel.thomas on Apr 27, 2016
Latest reply on Aug 14, 2017 by nick43oh
RM0038 says (5.1.6) that one has to wait for VOSF (Voltage Scaling select flag) when changing the voltage range using VOS. The same page contains a note that says that "the system clock is stopped until the regulator is stabilized (VOSF=0)".

Question 1: Does it make sense to poll this bit when the CPU is not running anyway?

Question 2: If it makes sense, is it also needed to wait for VOSF after I decreased the core voltage?

Thomas

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