I am using stm32f072 ,  when the CPU wakeup from sleep mode by the Window watchdog EWI Interrupt , the execution of the  EWI interrupt handler becomes abnormal, some code inside can not be executed ? Did anybody have the same situation ?

It seem the flash memory are not ready, and are not allowed to execute by the CPU

问题看懂了，一肚子话不知道怎么用英文表达