External interrupt/event controller (EXTI)
10.2.6.3 EXTI_GetITStatus
ITStatus EXTI_GetITStatus ( uint32_t EXTI_Line)
Checks whether the specified EXTI line is asserted or not.
ï‚· EXTI_Line : specifies the EXTI line to check. This parameter
can be any combination of EXTI_Linex where x can be
(0..20).
ï‚· The new state of EXTI_Line (SET or RESET).
10.2.6.4 EXTI_ClearITPendingBit
void EXTI_ClearITPendingBit ( uint32_t EXTI_Line)
Clears the EXTI's line pending bits.
ï‚· EXTI_Line : specifies the EXTI lines to clear. This parameter
can be any combination of EXTI_Linex where x can be
(0..20).
10.3 EXTI Firmware driver defines
10.3.1 EXTI
EXTI
EXTI_Lines
ï‚· #define: EXTI_Line0 ((uint32_t)0x00)