LL_EXTI_EnableFallingTrig_0_31() function

Enable ExtiLine Falling Edge Trigger for Lines in range 0 to 31

Syntax

from stm32f4xx_ll_exti.h:661

__STATIC_INLINE void LL_EXTI_EnableFallingTrig_0_31(uint32_t ExtiLine);

Arguments

ExtiLine

This parameter can be a combination of the following values: @arg LL_EXTI_LINE_0 @arg LL_EXTI_LINE_1 @arg LL_EXTI_LINE_2 @arg LL_EXTI_LINE_3 @arg LL_EXTI_LINE_4 @arg LL_EXTI_LINE_5 @arg LL_EXTI_LINE_6 @arg LL_EXTI_LINE_7 @arg LL_EXTI_LINE_8 @arg LL_EXTI_LINE_9 @arg LL_EXTI_LINE_10 @arg LL_EXTI_LINE_11 @arg LL_EXTI_LINE_12 @arg LL_EXTI_LINE_13 @arg LL_EXTI_LINE_14 @arg LL_EXTI_LINE_15 @arg LL_EXTI_LINE_16 @arg LL_EXTI_LINE_18 @arg LL_EXTI_LINE_19 (*) @arg LL_EXTI_LINE_20 (*) @arg LL_EXTI_LINE_21 @arg LL_EXTI_LINE_22

Return value

None

Notes

The configurable wakeup lines are edge-triggered. No glitch must be generated on these lines. If a falling edge on a configurable interrupt line occurs during a write operation in the EXTI_FTSR register, the pending bit is not set. Rising and falling edge triggers can be set for the same interrupt line. In this case, both generate a trigger condition. (*): Available in some devices Please check each device line mapping for EXTI Line availability

Examples

LL_EXTI_EnableFallingTrig_0_31() is referenced by 50 libraries and example projects.

References

Location	Referrer	Text
stm32f4xx_ll_exti.h:661		__STATIC_INLINE void LL_EXTI_EnableFallingTrig_0_31(uint32_t ExtiLine)
stm32f4xx_ll_exti.c:157	LL_EXTI_Init()	LL_EXTI_EnableFallingTrig_0_31(EXTI_InitStruct->Line_0_31);
stm32f4xx_ll_exti.c:161	LL_EXTI_Init()	LL_EXTI_EnableFallingTrig_0_31(EXTI_InitStruct->Line_0_31);

Call Tree

Functions calling LL_EXTI_EnableFallingTrig_0_31()

LL_EXTI_Init()

all items filtered out

LL_EXTI_EnableFallingTrig_0_31()

Data read by LL_EXTI_EnableFallingTrig_0_31()

EXTI_TypeDef::FTSR

LL_EXTI_EnableFallingTrig_0_31()::ExtiLine

all items filtered out

LL_EXTI_EnableFallingTrig_0_31()