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K40 Entering Low Power Modes

Question asked by Alberton Berry on May 18, 2018
Latest reply on May 21, 2018 by Fang Li

I'm using a Kinetis K40, part number MK40DN512VLQ MCU in a project with mask revision 4N22D.  I can't seem to get the processor into any low power modes.  Setting the PMPROT and PMCTRL registers and executing the WFI instruction to enter a Stop Mode doesn't seem to be working.  Are there any known issues with the K40 when entering low power modes?