Ejemplos de IS_NVIC_PRIORITY_GROUP en C++ (Cpp)

Ejemplo n.º 1

Archivo: stm32f4xx_hal_cortex.c Proyecto: CSRedRat/MobilECG-II

/**
  * @brief  Gets the priority of an interrupt.
  * @param  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))
  * @param   PriorityGroup: the priority grouping bits length.
  *         This parameter can be one of the following values:
  *           @arg NVIC_PRIORITYGROUP_0: 0 bits for preemption priority
  *                                      4 bits for subpriority
  *           @arg NVIC_PRIORITYGROUP_1: 1 bits for preemption priority
  *                                      3 bits for subpriority
  *           @arg NVIC_PRIORITYGROUP_2: 2 bits for preemption priority
  *                                      2 bits for subpriority
  *           @arg NVIC_PRIORITYGROUP_3: 3 bits for preemption priority
  *                                      1 bits for subpriority
  *           @arg NVIC_PRIORITYGROUP_4: 4 bits for preemption priority
  *                                      0 bits for subpriority
  * @param  pPreemptPriority: Pointer on the Preemptive priority value (starting from 0).
  * @param  pSubPriority: Pointer on the Subpriority value (starting from 0).
  * @retval None
  */
void HAL_NVIC_GetPriority(IRQn_Type IRQn, uint32_t PriorityGroup, uint32_t *pPreemptPriority, uint32_t *pSubPriority)
{
  /* Check the parameters */
  assert_param(IS_NVIC_PRIORITY_GROUP(PriorityGroup));
 /* Get priority for Cortex-M system or device specific interrupts */
  NVIC_DecodePriority(NVIC_GetPriority(IRQn), PriorityGroup, pPreemptPriority, pSubPriority);
}

Ejemplo n.º 2

Archivo: stm32f4xx_hal_cortex.c Proyecto: domitilo/Template

/**
 * @brief  Sets the priority grouping field (preemption priority and subpriority)
 *         using the required unlock sequence.
 * @param  PriorityGroup: The priority grouping bits length. 
 *         This parameter can be one of the following values:
 *         @arg NVIC_PRIORITYGROUP_0: 0 bits for preemption priority
 *                                    4 bits for subpriority
 *         @arg NVIC_PRIORITYGROUP_1: 1 bits for preemption priority
 *                                    3 bits for subpriority
 *         @arg NVIC_PRIORITYGROUP_2: 2 bits for preemption priority
 *                                    2 bits for subpriority
 *         @arg NVIC_PRIORITYGROUP_3: 3 bits for preemption priority
 *                                    1 bits for subpriority
 *         @arg NVIC_PRIORITYGROUP_4: 4 bits for preemption priority
 *                                    0 bits for subpriority
 * @note   When the NVIC_PriorityGroup_0 is selected, IRQ preemption is no more possible. 
 *         The pending IRQ priority will be managed only by the subpriority. 
 * @retval None
 */
void HAL_NVIC_SetPriorityGrouping(uint32_t PriorityGroup) {
	/* Check the parameters */
	assert_param(IS_NVIC_PRIORITY_GROUP(PriorityGroup));

	/* Set the PRIGROUP[10:8] bits according to the PriorityGroup parameter value */
	NVIC_SetPriorityGrouping(PriorityGroup);
}