/** * @brief Sets 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 PreemptPriority: The preemption priority for the IRQn channel. * This parameter can be a value between 0 and 15 * A lower priority value indicates a higher priority * @param SubPriority: the subpriority level for the IRQ channel. * This parameter can be a value between 0 and 15 * A lower priority value indicates a higher priority. * @retval None */ void HAL_NVIC_SetPriority(IRQn_Type IRQn, uint32_t PreemptPriority, uint32_t SubPriority) { uint32_t prioritygroup = 0x00; /* Check the parameters */ assert_param(IS_NVIC_SUB_PRIORITY(SubPriority)); assert_param(IS_NVIC_PREEMPTION_PRIORITY(PreemptPriority)); prioritygroup = NVIC_GetPriorityGrouping(); NVIC_SetPriority(IRQn, NVIC_EncodePriority(prioritygroup, PreemptPriority, SubPriority)); }
/** * @brief Sets 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 stm32l0xx.h file) * @param PreemptPriority: The pre-emption priority for the IRQn channel. * This parameter can be a value between 0 and 3. * A lower priority value indicates a higher priority * @param SubPriority: The subpriority level for the IRQ channel. * with stm32f0xx devices, this parameter is a dummy value and it is ignored, because * no subpriority supported in Cortex M0 based products. * @retval None */ void HAL_NVIC_SetPriority(IRQn_Type IRQn, uint32_t PreemptPriority, uint32_t SubPriority) { /* Check the parameters */ assert_param(IS_NVIC_PREEMPTION_PRIORITY(PreemptPriority)); NVIC_SetPriority(IRQn,PreemptPriority); }