cortex-m3 hibernate module...

아.. 이래서 시간이 초기화가 안된거였나..

unsigned long ulStatus; unsigned long ulNVData[64]; // // Need to enable the hibernation peripheral before using it. // SysCtlPeripheralEnable(SYSCTL_PERIPH_HIBERNATE); // // Enable clocking to the Hibernation module. // HibernateEnableExpClk(SysCtlClockGet()); // // User-implemented delay here to allow crystal to power up and stabilize. // // // Configure the clock source for Hibernation module, and enable the RTC // feature. This configuration is for a 4.194304 MHz crystal. // HibernateClockSelect(HIBERNATE_CLOCK_SEL_DIV128); HibernateRTCEnable(); // // Set the RTC to 0, or an initial value. The RTC can be set once when the // system is initialized after the cold-startup, and then left to run. Or // it can be initialized before every hibernate. // HibernateRTCSet(0); // // Set the match 0 register for 30 seconds from now. // HibernateRTCMatch0Set(HibernateRTCGet() + 30); // // Clear any pending status. // ulStatus = HibernateIntStatus(0); HibernateIntClear(ulStatus); // // Save the program state information. The state information will be // stored in the ulNVData[] array. It is not necessary to save the full 64 // words of data, only as much as is actually needed by the program. // HibernateDataSet(ulNVData, 64); // // Configure to wake on RTC match. // HibernateWakeSet(HIBERNATE_WAKE_RTC); // // Request hibernation. The following call may return since it takes a // finite amount of time for power to be removed. // HibernateRequest();