使能和关闭低功耗运行模式

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stary666 发布时间：2015-3-31 16:31

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/**
  * @brief Enters the Low Power Run mode.
  * @note Low power run mode can only be entered when VCORE is in range 2.
  *          In addition, the dynamic voltage scaling must not be used when Low
  *          power run mode is selected. Only Stop and Sleep modes with regulator
  *          configured in Low power mode is allowed when Low power run mode is
  *          selected.
  * @note In Low power run mode, all I/O pins keep the same state as in Run mode.
  * @param None
  * @retval None
  */
void
Enable_LowPowerRun_Mode(void)
{
/* Enters the Low Power Run mode */
PWR->CR |= PWR_CR_LPSDSR;
PWR->CR |= PWR_CR_LPRUN;
}

/**
  * @brief Exits the Low Power Run mode.
  * @param None
  * @retval None
  */
void
Disable_LowPowerRun_Mode(void)
{
/* Exits the Low Power Run mode */
PWR->CR &= (uint32_t) ~((uint32_t)PWR_CR_LPRUN);
PWR->CR &= (uint32_t) ~((uint32_t)PWR_CR_LPSDSR);
}