1 files changed, 160 insertions, 0 deletions
diff --git a/app/time/time.c b/app/time/time.c
new file mode 100644
index 0000000..4159f44
--- /dev/null
+++ b/app/time/time.c
@@ -0,0 +1,160 @@
+
+#include "time.h"
+#include "stm32f0xx_conf.h"
+
+/* Uncomment the corresponding line to select the RTC Clock source */
+#define RTC_CLOCK_SOURCE_LSE   /* LSE used as RTC source clock */
+//#define RTC_CLOCK_SOURCE_LSI  // LSI used as RTC source clock. The RTC Clock
+                                // may varies due to LSI frequency dispersion
+
+#define BKP_VALUE    0x32F0
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+__IO uint32_t AsynchPrediv = 0, SynchPrediv = 0;
+
+/* Private function prototypes -----------------------------------------------*/
+static void RTC_Config(void);
+static void RTC_TimeRegulate(void);
+
+
+// - калибровку RTC как делать?
+
+
+// ----------------------------------------------------------------------------
+//
+// ----------------------------------------------------------------------------
+void TimeInit (void)
+{
+  RTC_InitTypeDef RTC_InitStructure;
+
+  if (RTC_ReadBackupRegister(RTC_BKP_DR0) != BKP_VALUE)
+  //if (SynchPrediv == 0)
+  {
+    /* RTC configuration  */
+    RTC_Config();
+
+    /* Configure the RTC data register and RTC prescaler */
+    RTC_InitStructure.RTC_AsynchPrediv = AsynchPrediv;
+    RTC_InitStructure.RTC_SynchPrediv = SynchPrediv;
+    RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
+
+    /* Check on RTC init */
+    if (RTC_Init(&RTC_InitStructure) == ERROR)
+    {
+     // printf("\n\r        /!\\***** RTC Prescaler Config failed ********/!\\ \n\r");
+    }
+
+    /* Configure the time register */
+    RTC_TimeRegulate();
+  }
+  else
+  {
+    /* Check if the Power On Reset flag is set */
+    if (RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET)
+    {
+      //printf("\r\n Power On Reset occurred....\n\r");
+    }
+    /* Check if the Pin Reset flag is set */
+    else if (RCC_GetFlagStatus(RCC_FLAG_PINRST) != RESET)
+    {
+     // printf("\r\n External Reset occurred....\n\r");
+    }
+
+    //printf("\n\r No need to configure RTC....\n\r");
+
+    /* Enable the PWR clock */
+    RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
+
+    /* Allow access to RTC */
+    PWR_BackupAccessCmd(ENABLE);
+
+ #ifdef RTC_CLOCK_SOURCE_LSI
+    /* Enable the LSI OSC */
+    RCC_LSICmd(ENABLE);
+ #endif /* RTC_CLOCK_SOURCE_LSI */
+
+    /* Wait for RTC APB registers synchronisation */
+    RTC_WaitForSynchro();
+
+    /* Clear the RTC Alarm Flag */
+    RTC_ClearFlag(RTC_FLAG_ALRAF);
+
+    /* Clear the EXTI Line 17 Pending bit (Connected internally to RTC Alarm) */
+    //EXTI_ClearITPendingBit(EXTI_Line17);
+
+    /* Display the RTC Time and Alarm */
+    //RTC_TimeShow();
+    //RTC_AlarmShow();
+  }
+}
+
+
+// ----------------------------------------------------------------------------
+//
+// ----------------------------------------------------------------------------
+static void RTC_Config(void)
+{
+  /* Enable the PWR clock */
+  RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
+
+  /* Allow access to RTC */
+  PWR_BackupAccessCmd(ENABLE);
+
+#if defined (RTC_CLOCK_SOURCE_LSI)  /* LSI used as RTC source clock*/
+/* The RTC Clock may varies due to LSI frequency dispersion. */
+  /* Enable the LSI OSC */
+  RCC_LSICmd(ENABLE);
+
+  /* Wait till LSI is ready */
+  while(RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET)
+  {
+  }
+
+  /* Select the RTC Clock Source */
+  RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI);
+
+  SynchPrediv = 0x18F;
+  AsynchPrediv = 0x63;
+
+#elif defined (RTC_CLOCK_SOURCE_LSE) /* LSE used as RTC source clock */
+  /* Enable the LSE OSC */
+  RCC_LSEConfig(RCC_LSE_ON);
+
+  /* Wait till LSE is ready */
+  while(RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET)
+  {
+  }
+
+  /* Select the RTC Clock Source */
+  RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
+
+  SynchPrediv = 0xFF;
+  AsynchPrediv = 0x7F;
+
+#else
+  #error Please select the RTC Clock source inside the main.c file
+#endif /* RTC_CLOCK_SOURCE_LSI */
+
+  /* Enable the RTC Clock */
+  RCC_RTCCLKCmd(ENABLE);
+
+  /* Wait for RTC APB registers synchronisation */
+  RTC_WaitForSynchro();
+}
+
+
+// ----------------------------------------------------------------------------
+//
+// ----------------------------------------------------------------------------
+static void RTC_TimeRegulate ( void )
+{
+   RTC_TimeTypeDef RTC_TimeStructure;
+
+   RTC_TimeStructure.RTC_Hours   = 14;
+   RTC_TimeStructure.RTC_Minutes = 01;
+   RTC_TimeStructure.RTC_Seconds = 00;
+
+   RTC_SetTime(RTC_Format_BIN, &RTC_TimeStructure);
+   /* Indicator for the RTC configuration */
+   RTC_WriteBackupRegister(RTC_BKP_DR0, BKP_VALUE);
+}