本帖最后由 li13158 于 2017-5-20 16:01 编辑

/**  * @brief  Sets the software priority of the specified interrupt source.   *  @note   The modification of the software priority is only possible when  
*         the interrupts are disabled.  
* @note   The normal behavior is to disable the interrupt before calling  
*         this function, and re-enable it after.  
* @note   The priority level 0 cannot be set (see product specification  
*         for more details).  
* @param  IRQn : Specifies the peripheral interrupt source.  
* @param  ITC_PriorityLevel : Specifies the software priority value to set  
*          This parameter can be one of the following values:  
*            @arg ITC_PriorityLevel_0: Software priority level 0 (cannot be written)  
*            @arg ITC_PriorityLevel_1: Software priority level 1  
*            @arg ITC_PriorityLevel_2: Software priority level 2  
*            @arg ITC_PriorityLevel_3: Software priority level 3      
* @retval None   
*/
void ITC_SetSoftwarePriority(IRQn_TypeDef IRQn, ITC_PriorityLevel_TypeDef ITC_PriorityLevel)