00001 /**
00002   ******************************************************************************
00003   * @file    RTC/RTC_Timer/main.c 
00004   * @author  MCD Application Team
00005   * @version V1.0.1
00006   * @date    13-April-2012
00007   * @brief   Main program body
00008   ******************************************************************************
00009   * @attention
00010   *
00011   * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
00012   *
00013   * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
00014   * You may not use this file except in compliance with the License.
00015   * You may obtain a copy of the License at:
00016   *
00017   *        http://www.st.com/software_license_agreement_liberty_v2
00018   *
00019   * Unless required by applicable law or agreed to in writing, software 
00020   * distributed under the License is distributed on an "AS IS" BASIS, 
00021   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00022   * See the License for the specific language governing permissions and
00023   * limitations under the License.
00024   *
00025   ******************************************************************************
00026   */
00027 
00028 /* Includes ------------------------------------------------------------------*/
00029 #include "main.h"
00030 
00031 /** @addtogroup STM32F4xx_StdPeriph_Examples
00032   * @{
00033   */
00034   
00035 /** @addtogroup RTC_Timer
00036   * @{
00037   */
00038 
00039 /* Private typedef -----------------------------------------------------------*/
00040 /* Private define ------------------------------------------------------------*/
00041 #define MESSAGE1   "*** Progress Bar ***" 
00042 #define MESSAGE2   "WAKEUP     TAMPER     KEY " 
00043 #define MESSAGE3   " Reset      Stop     Start" 
00044 
00045 /* Private macro -------------------------------------------------------------*/
00046 /* Private variables ---------------------------------------------------------*/
00047 RTC_InitTypeDef RTC_InitStructure;
00048 RTC_TimeTypeDef  RTC_TimeStruct;
00049 
00050 /* Private function prototypes -----------------------------------------------*/
00051 /* Private functions ---------------------------------------------------------*/
00052 
00053 /**
00054   * @brief  Main program.
00055   * @param  None
00056   * @retval None
00057   */
00058 int main(void)
00059 {
00060   /*!< At this stage the microcontroller clock setting is already configured, 
00061        this is done through SystemInit() function which is called from startup
00062        file (startup_stm32f4xx.s) before to branch to application main.
00063        To reconfigure the default setting of SystemInit() function, refer to
00064        system_stm32f4xx.c file
00065      */  
00066   
00067   /* Initialize the LCD */
00068   STM324xG_LCD_Init(); 
00069 
00070   /* Clear the LCD */ 
00071   LCD_Clear(White);
00072 
00073   /* Set the LCD Back Color */
00074   LCD_SetBackColor(Blue);
00075   
00076   /* Set the LCD Text Color */
00077   LCD_SetTextColor(White);
00078    
00079   /* Displays MESSAGE1 on line 1 */
00080   LCD_DisplayStringLine(LINE(0), (uint8_t *)MESSAGE1);
00081 
00082   /* RTC configuration */
00083   RTC_Config();
00084   
00085   /* Set the LCD Text Color */
00086   LCD_SetTextColor(Red);
00087   
00088   /* Displays a rectangle on the LCD */
00089   LCD_DrawRect(80, 290, 25, 240 );
00090   
00091   /* Configure the external interrupt "KEY", "WAKEUP" and "TAMPER" buttons */
00092   STM_EVAL_PBInit(BUTTON_KEY, BUTTON_MODE_EXTI);
00093   STM_EVAL_PBInit(BUTTON_WAKEUP, BUTTON_MODE_EXTI);
00094   STM_EVAL_PBInit(BUTTON_TAMPER, BUTTON_MODE_EXTI);  
00095      
00096   /* Configure RTC AlarmA register to generate 8 interrupts per 1 Second */
00097   RTC_AlarmConfig();
00098   
00099   /* set LCD Font */
00100   LCD_SetFont(&Font12x12);
00101 
00102   /* Set the LCD Back Color */
00103   LCD_SetBackColor(White); 
00104 
00105   /* Set the LCD Text Color */
00106   LCD_SetTextColor(Black);
00107 
00108   /* Displays MESSAGE2 and MESSAGE3 on the LCD */
00109   LCD_DisplayStringLine(LINE(18), (uint8_t *)MESSAGE2);  
00110   LCD_DisplayStringLine(LINE(19), (uint8_t *)MESSAGE3);  
00111 
00112   /* Infinite loop */
00113   while (1)
00114   {
00115   }
00116 }
00117 
00118 /**
00119   * @brief  Configures the RTC peripheral and select the clock source.
00120   * @param  None
00121   * @retval None
00122   */
00123 void RTC_Config(void)
00124 {
00125   /* Enable the PWR clock */
00126   RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
00127 
00128   /* Allow access to RTC */
00129   PWR_BackupAccessCmd(ENABLE);
00130 
00131   /* Reset RTC Domain */
00132   RCC_BackupResetCmd(ENABLE);
00133   RCC_BackupResetCmd(DISABLE);
00134 
00135   /* Enable the LSE OSC */
00136   RCC_LSEConfig(RCC_LSE_ON);
00137 
00138   /* Wait till LSE is ready */  
00139   while(RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET)
00140   {
00141   }
00142 
00143   /* Select the RTC Clock Source */
00144   RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
00145 
00146   /* Configure the RTC data register and RTC prescaler */
00147   RTC_InitStructure.RTC_AsynchPrediv = 0x7F;
00148   RTC_InitStructure.RTC_SynchPrediv  = 0xFF;
00149   RTC_InitStructure.RTC_HourFormat   = RTC_HourFormat_24;
00150   RTC_Init(&RTC_InitStructure);
00151   
00152   /* Set the time to 00h 00mn 00s AM */
00153   RTC_TimeStruct.RTC_H12     = RTC_H12_AM;
00154   RTC_TimeStruct.RTC_Hours   = 0x00;
00155   RTC_TimeStruct.RTC_Minutes = 0x00;
00156   RTC_TimeStruct.RTC_Seconds = 0x00;  
00157   RTC_SetTime(RTC_Format_BCD, &RTC_TimeStruct);
00158   
00159 }
00160 
00161 /**
00162   * @brief  Configures the RTC Alarm.
00163   * @param  None
00164   * @retval None
00165   */
00166 void RTC_AlarmConfig(void)
00167 {
00168   EXTI_InitTypeDef EXTI_InitStructure;
00169   RTC_AlarmTypeDef RTC_AlarmStructure;
00170   NVIC_InitTypeDef NVIC_InitStructure;
00171   
00172   /* EXTI configuration */
00173   EXTI_ClearITPendingBit(EXTI_Line17);
00174   EXTI_InitStructure.EXTI_Line = EXTI_Line17;
00175   EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
00176   EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
00177   EXTI_InitStructure.EXTI_LineCmd = ENABLE;
00178   EXTI_Init(&EXTI_InitStructure);
00179   
00180   /* Enable the RTC Alarm Interrupt */
00181   NVIC_InitStructure.NVIC_IRQChannel = RTC_Alarm_IRQn;
00182   NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
00183   NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
00184   NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
00185   NVIC_Init(&NVIC_InitStructure);
00186  
00187   /* Set the alarmA Masks */
00188   RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_All;
00189   RTC_SetAlarm(RTC_Format_BCD, RTC_Alarm_A, &RTC_AlarmStructure);
00190   
00191   /* Set AlarmA subseconds and enable SubSec Alarm : generate 8 interripts per Second */
00192   RTC_AlarmSubSecondConfig(RTC_Alarm_A, 0xFF, RTC_AlarmSubSecondMask_SS14_5);
00193 
00194   /* Enable AlarmA interrupt */
00195   RTC_ITConfig(RTC_IT_ALRA, ENABLE);
00196 
00197 }
00198 
00199 #ifdef  USE_FULL_ASSERT
00200 
00201 /**
00202   * @brief  Reports the name of the source file and the source line number
00203   *   where the assert_param error has occurred.
00204   * @param  file: pointer to the source file name
00205   * @param  line: assert_param error line source number
00206   * @retval None
00207   */
00208 void assert_failed(uint8_t* file, uint32_t line)
00209 { 
00210   /* User can add his own implementation to report the file name and line number,
00211      ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
00212 
00213   /* Infinite loop */
00214   while (1)
00215   {
00216   }
00217 }
00218 #endif
00219 
00220 /**
00221   * @}
00222   */
00223 
00224 /**
00225   * @}
00226   */
00227 
00228 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/