ST STM32F2 User Manual

HAL CORTEX Generic Driver
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DocID028236 Rev 2
This section contains the following APIs:
HAL_NVIC_SetPriorityGrouping()
HAL_NVIC_SetPriority()
HAL_NVIC_EnableIRQ()
HAL_NVIC_DisableIRQ()
HAL_NVIC_SystemReset()
HAL_SYSTICK_Config()
9.2.3 Peripheral Control functions
This subsection provides a set of functions allowing to control the CORTEX (NVIC,
SYSTICK, MPU) functionalities.
This section contains the following APIs:
HAL_MPU_Disable()
HAL_MPU_Enable()
HAL_MPU_ConfigRegion()
HAL_NVIC_GetPriorityGrouping()
HAL_NVIC_GetPriority()
HAL_NVIC_SetPendingIRQ()
HAL_NVIC_GetPendingIRQ()
HAL_NVIC_ClearPendingIRQ()
HAL_NVIC_GetActive()
HAL_SYSTICK_CLKSourceConfig()
HAL_SYSTICK_IRQHandler()
HAL_SYSTICK_Callback()
9.2.4 Detailed description of functions
HAL_NVIC_SetPriorityGrouping
Function name
void HAL_NVIC_SetPriorityGrouping (uint32_t PriorityGroup)
Function description
Sets the priority grouping field (preemption priority and subpriority)
using the required unlock sequence.
Parameters
PriorityGroup: The priority grouping bits length. This
parameter can be one of the following values:
NVIC_PRIORITYGROUP_0: 0 bits for preemption
priority 4 bits for subpriority
NVIC_PRIORITYGROUP_1: 1 bits for preemption
priority 3 bits for subpriority
NVIC_PRIORITYGROUP_2: 2 bits for preemption
priority 2 bits for subpriority
NVIC_PRIORITYGROUP_3: 3 bits for preemption
priority 1 bits for subpriority
NVIC_PRIORITYGROUP_4: 4 bits for preemption
priority 0 bits for subpriority
Return values
None:
Notes
When the NVIC_PriorityGroup_0 is selected, IRQ preemption
is no more possible. The pending IRQ priority will be
managed only by the subpriority.

ST STM32F2 Specifications

General

Brand	ST
Model	STM32F2
Category	Microcontrollers
Language	English