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

作者: liuqq 時間: 2015-5-18 23:32
標題: 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號中斷線
EXTI_ClearITPendingBit(EXTI_Line16);
//警報燈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);
}

作者: biaocha123 時間: 2018-4-24 15:19
自己寫的嗎？

作者: biaocha123 時間: 2018-4-24 15:21
驗證過嗎？

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