標(biāo)題: STM32 PVD程序【掉電緊急系統(tǒng)信息轉(zhuǎn)存EEPROM】 [打印本頁]

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作者: liuqq    時(shí)間: 2015-5-18 23:32
標(biāo)題: STM32 PVD程序【掉電緊急系統(tǒng)信息轉(zhuǎn)存EEPROM】
本帖最后由 liuqq 于 2015-5-19 01:35 編輯

void PVD_IRQHandler(void)
{
  if (EXTI_GetITStatus(EXTI_Line16) != RESET)
  {
    //清理16號(hào)中斷線
    EXTI_ClearITPendingBit(EXTI_Line16);
    //警報(bào)燈LE0翻轉(zhuǎn)
    LED0 = !LED0;
    AT24CXX_Write(0, (u8*)PVD, sizeof(PVD));  
  }
}


void PVD_Init(void)

{  
        

   NVIC_InitTypeDef NVIC_InitStruct;
   EXTI_InitTypeDef EXTI_InitStructure;

   NVIC_InitStruct.NVIC_IRQChannel = PVD_IRQn;
   NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0;
   NVIC_InitStruct.NVIC_IRQChannelSubPriority = 2;
   NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;


   NVIC_Init(&NVIC_InitStruct);//允許中斷
        
         EXTI_ClearITPendingBit(EXTI_Line16);
    EXTI_InitStructure.EXTI_Line = EXTI_Line16;
    EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
    EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;//EXTI_Trigger_Falling   ;//EXTI_Trigger_Rising;
    EXTI_InitStructure.EXTI_LineCmd = ENABLE;
    EXTI_Init(&EXTI_InitStructure);

        
        
          // 以下PVD_Init 一份.  main函數(shù)在 PVD_Init();前一份
    PWR_PVDLevelConfig(PWR_PVDLevel_2V5);
    PWR_PVDCmd(ENABLE);
    RCC_APB1PeriphClockCmd( RCC_APB1Periph_PWR, ENABLE); //_PWR, ENABLE);
}

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作者: biaocha123    時(shí)間: 2018-4-24 15:19
自己寫的嗎？

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作者: biaocha123    時(shí)間: 2018-4-24 15:21
驗(yàn)證過嗎？

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