STM32F0xx Standard Peripherals Firmware Library: stm32f0xx_it.c Source File

00001 /**
00002   ******************************************************************************
00003   * @file    IWDG/IWDG_WindowMode/stm32f0xx_it.c 
00004   * @author  MCD Application Team
00005   * @version V1.4.0
00006   * @date    24-July-2014
00007   * @brief   Main Interrupt Service Routines.
00008   *          This file provides template for all exceptions handler and 
00009   *          peripherals interrupt service routine.
00010   ******************************************************************************
00011   * @attention
00012   *
00013   * <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
00014   *
00015   * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
00016   * You may not use this file except in compliance with the License.
00017   * You may obtain a copy of the License at:
00018   *
00019   *        http://www.st.com/software_license_agreement_liberty_v2
00020   *
00021   * Unless required by applicable law or agreed to in writing, software 
00022   * distributed under the License is distributed on an "AS IS" BASIS, 
00023   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00024   * See the License for the specific language governing permissions and
00025   * limitations under the License.
00026   *
00027   ******************************************************************************
00028   */ 
00029 
00030 /* Includes ------------------------------------------------------------------*/
00031 #include "stm32f0xx_it.h"
00032 
00033 /** @addtogroup STM32F0xx_StdPeriph_Examples
00034   * @{
00035   */
00036 
00037 /* Private typedef -----------------------------------------------------------*/
00038 /* Private define ------------------------------------------------------------*/
00039 /* Private macro -------------------------------------------------------------*/
00040 /* Private variables ---------------------------------------------------------*/
00041 extern __IO uint32_t TimingDelay;
00042 /* Private function prototypes -----------------------------------------------*/
00043 /* Private functions ---------------------------------------------------------*/
00044 
00045 /******************************************************************************/
00046 /*            Cortex-M0 Processor Exceptions Handlers                         */
00047 /******************************************************************************/
00048 
00049 /**
00050   * @brief  This function handles NMI exception.
00051   * @param  None
00052   * @retval None
00053   */
00054 void NMI_Handler(void)
00055 {
00056 }
00057 
00058 /**
00059   * @brief  This function handles Hard Fault exception.
00060   * @param  None
00061   * @retval None
00062   */
00063 void HardFault_Handler(void)
00064 {
00065   /* Go to infinite loop when Hard Fault exception occurs */
00066   while (1)
00067   {
00068   }
00069 }
00070 
00071 /**
00072   * @brief  This function handles SVCall exception.
00073   * @param  None
00074   * @retval None
00075   */
00076 void SVC_Handler(void)
00077 {
00078 }
00079 
00080 /**
00081   * @brief  This function handles PendSVC exception.
00082   * @param  None
00083   * @retval None
00084   */
00085 void PendSV_Handler(void)
00086 {
00087 }
00088 
00089 /**
00090   * @brief  This function handles SysTick Handler.
00091   * @param  None
00092   * @retval None
00093   */
00094 void SysTick_Handler(void)
00095 {
00096   TimingDelay_Decrement();
00097 }
00098 
00099 /******************************************************************************/
00100 /*                 STM32F0xx Peripherals Interrupt Handlers                   */
00101 /*  Add here the Interrupt Handler for the used peripheral(s) (PPP), for the  */
00102 /*  available peripheral interrupt handler's name please refer to the startup */
00103 /*  file (startup_stm32f0xx.s).                                            */
00104 /******************************************************************************/
00105 /**
00106   * @brief  This function handles External line 4 to 15 interrupt request.
00107   * @param  None
00108   * @retval None
00109   */
00110 void EXTI4_15_IRQHandler(void)
00111 {
00112   if (EXTI_GetITStatus(TAMPER_BUTTON_EXTI_LINE) != RESET)
00113   {  
00114     STM_EVAL_LEDOn(LED3);
00115     /* Clear the TAMPER Button EXTI Line Pending Bit */
00116     EXTI_ClearITPendingBit(TAMPER_BUTTON_EXTI_LINE);
00117     
00118     /* As the following address is invalid (not mapped), a Hardfault exception
00119     will be generated with an infinite loop and when the IWDG counter reaches 0
00120     the IWDG reset occurs */
00121     *(__IO uint32_t *) 0x00040001 = 0xFF;
00122     
00123   }
00124 }
00125 
00126 /**
00127   * @brief  This function handles PPP interrupt request.
00128   * @param  None
00129   * @retval None
00130   */
00131 /*void PPP_IRQHandler(void)
00132 {
00133 }*/
00134 
00135 /**
00136   * @}
00137   */ 
00138 
00139 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/