how to use key interrupt in stm3240g eval board

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how to use key interrupt in stm3240g eval board

huangbingbing
I want to know 3 questions about the ecos I0 input interrupt on STM32
1) the function is realized? I can't  enter  isr using the
cyg_interrupt_creat API
2) I find the hal_exti_isr in the hal_misc.c,I can use it to realize the
functions?
3) I use the HAL_INTERRUPT_ATTACH to change the isr name ,but it failed,it
is still enter the hal_exti_isr ,why


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