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STM32F407 not going to sleep on __WFE()

Question asked by Chin.Kenrick on Mar 11, 2015
Latest reply on Mar 14, 2015 by Chin.Kenrick
I am running STM32F407 with IAR EW toolset and trying to put the CPU into sleep mode.
The processor never stops at __WFE( ).
Any idea what I am doing wrong?