HAL CORTEX Generic Driver

UM1725

and returns the pending bit for the specified interrupt).

Parameters

IRQn: External interrupt number. This parameter can be an

enumerator of IRQn_Type enumeration (For the complete

STM32 Devices IRQ Channels list, please refer to the

appropriate CMSIS device file (stm32f4xxxx.h))

Return values

status - 0 Interrupt status is not pending. 1 Interrupt status is

pending.

Function Name

void HAL_NVIC_ClearPendingIRQ (IRQn_Type IRQn)

Function Description

Clears the pending bit of an external interrupt.

Parameters

IRQn: External interrupt number. This parameter can be an

enumerator of IRQn_Type enumeration (For the complete

STM32 Devices IRQ Channels list, please refer to the

appropriate CMSIS device file (stm32f4xxxx.h))

Return values

None

Function Name

uint32_t HAL_NVIC_GetActive (IRQn_Type IRQn)

Function Description

Gets active interrupt ( reads the active register in NVIC and returns

the active bit).

Parameters

IRQn: External interrupt number This parameter can be an

enumerator of IRQn_Type enumeration (For the complete

STM32 Devices IRQ Channels list, please refer to the

appropriate CMSIS device file (stm32f4xxxx.h))

Return values

status - 0 Interrupt status is not pending. 1 Interrupt status is

pending.

Function Name

void HAL_SYSTICK_CLKSourceConfig (uint32_t CLKSource)

Function Description

Configures the SysTick clock source.

Parameters

CLKSource: specifies the SysTick clock source. This

parameter can be one of the following values:

SYSTICK_CLKSOURCE_HCLK_DIV8: AHB clock divided by

8 selected as SysTick clock

source.SYSTICK_CLKSOURCE_HCLK: AHB clock selected

as SysTick clock source.

Return values

None

Function Name

void HAL_SYSTICK_IRQHandler (void )

Function Description

This function handles SYSTICK interrupt request.

Return values

None

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DOCID025834 Rev 2