STM32F0xx Standard Peripherals Firmware Library: main.c Source File

00001 /**
00002   ******************************************************************************
00003   * @file    NVIC/NVIC_WFI_Mode/main.c 
00004   * @author  MCD Application Team
00005   * @version V1.4.0
00006   * @date    24-July-2014
00007   * @brief   Main program body
00008   ******************************************************************************
00009   * @attention
00010   *
00011   * <h2><center>&copy; COPYRIGHT 2014 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 STM32F0xx_StdPeriph_Examples
00032   * @{
00033   */
00034  
00035 /** @addtogroup NVIC_WFI_Mode
00036   * @{
00037   */
00038 
00039 /* Private typedef -----------------------------------------------------------*/
00040 /* Private define ------------------------------------------------------------*/
00041 /* Private macro -------------------------------------------------------------*/
00042 /* Private variables ---------------------------------------------------------*/
00043 __IO uint32_t LowPowerMode = 0;
00044 
00045 /* Private function prototypes -----------------------------------------------*/
00046 void Delay(__IO uint32_t nCount);
00047 
00048 /* Private functions ---------------------------------------------------------*/
00049 
00050 
00051 /**
00052   * @brief  Main program.
00053   * @param  None
00054   * @retval None
00055   */
00056 int main(void)
00057 {
00058   /*!< At this stage the microcontroller clock setting is already configured, 
00059        this is done through SystemInit() function which is called from startup
00060        file (startup_stm32f0xx.s) before to branch to application main.
00061        To reconfigure the default setting of SystemInit() function, refer to
00062        system_stm32f0xx.c file
00063      */ 
00064   /* Initialize Led and KEY Button mounted on STM320518-EVAL */       
00065   STM_EVAL_LEDInit(LED3);
00066   
00067   STM_EVAL_PBInit(BUTTON_TAMPER, BUTTON_MODE_EXTI); 
00068     
00069   while (1)
00070   {
00071     if(LowPowerMode == 1)
00072     {
00073       /* Turn Off LED3 */
00074       STM_EVAL_LEDOff(LED3);
00075 
00076       /* Request to enter WFI mode */
00077       __WFI();
00078       LowPowerMode = 0;
00079     }
00080 
00081     Delay(0xFFFFF);
00082     STM_EVAL_LEDToggle(LED3);
00083   }
00084 }
00085 
00086 /**
00087   * @brief  Inserts a delay time.
00088   * @param  nCount: specifies the delay time length.
00089   * @retval None
00090   */
00091 void Delay(__IO uint32_t nCount)
00092 {
00093   for(; nCount != 0; nCount--);
00094 }
00095 
00096 #ifdef  USE_FULL_ASSERT
00097 
00098 /**
00099   * @brief  Reports the name of the source file and the source line number
00100   *         where the assert_param error has occurred.
00101   * @param  file: pointer to the source file name
00102   * @param  line: assert_param error line source number
00103   * @retval None
00104   */
00105 void assert_failed(uint8_t* file, uint32_t line)
00106 { 
00107   /* User can add his own implementation to report the file name and line number,
00108      ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
00109 
00110   /* Infinite loop */
00111   while (1)
00112   {
00113   }
00114 }
00115 #endif
00116 
00117 /**
00118   * @}
00119   */
00120 
00121 /**
00122   * @}
00123   */
00124 
00125 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/