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increase in current consumption after POR

Question asked by Frank Roberts on Feb 7, 2016
Latest reply on Feb 10, 2016 by Frank Roberts


  I am having an issue with IDD on a KL03.  We are seeing VERY STRANGE behavior in which we have simplified the application to simplify/track down the issue.  One of the big issues I am seeing is that after I program the Device(custom hardware) with a J-LINK I disable the debugger and unplug the cable.  The system shows what I would expect after turning off/disconnecting the debugger cable.  I then Power Cycle the device and all of a sudden my base line current consumption jumps from 76uA to 220uA?  What is going on here?  This is utterly baffling why a POR which should execute the same code causes the system to jump from 76uA to 220uA?  This is a critical situation and a major roadblock on this project.  Does anyone have an idea what is going on here?



Run Mode: 2MHz VLPR

Sleep Mode:  VLPS


Using KDS3.0 KSDK1.3


I have attached a power profile screenshot.