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window watchdog in stm32f103

Question asked by mahmoud on Sep 2, 2015
hi every one
I'm trying to initial stm32f103rbt6's window watchdog with keil cmsis examples,
every thing is OK but in reverse direction,i mean it seems external interrupt & wwdg interrupt handlers are act instead of each others.
based on keil read me descriptions periodically it must update wwdg counter & blink leds except when i pulled down portb.9(then wwdg must reset mcu)
but know exti interrupt handler act normally & when i pulled down exti then wwdg handler act.
i am completely mixed up,hope to any body guide me,i attached my project in keil too
with best regards.