ST STM32F2 User Manual

LL EXTI Generic Driver
UM1940
922/1371
DocID028236 Rev 2
(uint32_t ExtiLine)
Function description
Check if the ExtLine Flag is set or not for Lines in range 0 to 31.
Parameters
ExtiLine: This parameter can be a combination of the
following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7
LL_EXTI_LINE_8
LL_EXTI_LINE_9
LL_EXTI_LINE_10
LL_EXTI_LINE_11
LL_EXTI_LINE_12
LL_EXTI_LINE_13
LL_EXTI_LINE_14
LL_EXTI_LINE_15
LL_EXTI_LINE_16
LL_EXTI_LINE_18
LL_EXTI_LINE_19
LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
Return values
State: of bit (1 or 0).
Notes
This bit is set when the selected edge event arrives on the
interrupt line. This bit is cleared by writing a 1 to the bit.
Please check each device line mapping for EXTI Line
availability
Reference Manual to
LL API cross
reference:
PR PIFx LL_EXTI_IsActiveFlag_0_31
LL_EXTI_ReadFlag_0_31
Function name
__STATIC_INLINE uint32_t LL_EXTI_ReadFlag_0_31 (uint32_t
ExtiLine)
Function description
Read ExtLine Combination Flag for Lines in range 0 to 31.
Parameters
ExtiLine: This parameter can be a combination of the
following values:
LL_EXTI_LINE_0
LL_EXTI_LINE_1
LL_EXTI_LINE_2
LL_EXTI_LINE_3
LL_EXTI_LINE_4
LL_EXTI_LINE_5
LL_EXTI_LINE_6
LL_EXTI_LINE_7

ST STM32F2 Specifications

General

Brand	ST
Model	STM32F2
Category	Microcontrollers
Language	English