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zhyinch

2018-09-20 a268b9fa1c215ae353de26fb137665232381debe

 源码/核心板/Src/OnChipDevices/Rcc_Nvic_Systick.c

@@ -48,24 +48,31 @@
   NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
   
   /* Enable and set EXTI Interrupt to the lowest priority */
    NVIC_InitStructure.NVIC_IRQChannel = EXTI2_IRQn;
    NVIC_InitStructure.NVIC_IRQChannel = DECAIRQ_EXTI_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 15;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

	
	
      NVIC_InitStructure.NVIC_IRQChannel = RTCAlarm_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
      NVIC_InitStructure.NVIC_IRQChannelCmd =ENABLE;
	
    NVIC_Init(&NVIC_InitStructure);
}

int Systick_Init(void)
{
   int time_retry = 500;
   if (SysTick_Config(64000))
   if (SysTick_Config(72000))
   {
        /* Capture error */
        while (time_retry--);
      return 1;
    }
    NVIC_SetPriority (SysTick_IRQn, 5);
    NVIC_SetPriority(SysTick_IRQn, 5);

    return 0;