ST STM32F2 User Manual

LL EXTI Generic Driver
UM1940
924/1371
DocID028236 Rev 2
LL_EXTI_LINE_20
LL_EXTI_LINE_21
LL_EXTI_LINE_22
Return values
None:
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_ClearFlag_0_31
LL_EXTI_Init
Function name
uint32_t LL_EXTI_Init (LL_EXTI_InitTypeDef * EXTI_InitStruct)
Function description
Initialize the EXTI registers according to the specified parameters
in EXTI_InitStruct.
Parameters
EXTI_InitStruct: pointer to a LL_EXTI_InitTypeDef structure.
Return values
An: ErrorStatus enumeration value:
SUCCESS: EXTI registers are initialized
ERROR: not applicable
LL_EXTI_DeInit
Function name
uint32_t LL_EXTI_DeInit (void )
Function description
De-initialize the EXTI registers to their default reset values.
Return values
An: ErrorStatus enumeration value:
SUCCESS: EXTI registers are de-initialized
ERROR: not applicable
LL_EXTI_StructInit
Function name
void LL_EXTI_StructInit (LL_EXTI_InitTypeDef *
EXTI_InitStruct)
Function description
Set each LL_EXTI_InitTypeDef field to default value.
Parameters
EXTI_InitStruct: Pointer to a LL_EXTI_InitTypeDef structure.
Return values
None:
56.3 EXTI Firmware driver defines
56.3.1 EXTI
LINE
LL_EXTI_LINE_0
Extended line 0
LL_EXTI_LINE_1
Extended line 1
LL_EXTI_LINE_2
Extended line 2

ST STM32F2 Specifications

General

Brand	ST
Model	STM32F2
Category	Microcontrollers
Language	English