STM8S/A Standard Peripherals Firmware Library: main.c Source File

00001 /**
00002   ******************************************************************************
00003   * @file    RST_IllegalOpcode\main.c
00004   * @author  MCD Application Team
00005   * @version  V2.2.0
00006   * @date     30-September-2014
00007   * @brief   This file contains the main function for RST Illegal Opcode example.
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 "stm8s.h"
00030 #include "stm8s_eval.h"
00031 
00032 
00033 /**
00034   * @addtogroup RST_IllegalOpcode
00035   * @{
00036   */
00037 
00038 /* Private typedef -----------------------------------------------------------*/
00039 
00040 /* Private define ------------------------------------------------------------*/
00041 /* Private macro -------------------------------------------------------------*/
00042 /* Private variables ---------------------------------------------------------*/
00043 /* Private function prototypes -----------------------------------------------*/
00044 static void GPIO_Config(void);
00045 void Delay (uint16_t nCount);
00046 /* Private functions ---------------------------------------------------------*/
00047 /* Public functions ----------------------------------------------------------*/
00048 
00049 /**
00050   * @brief  Main program.
00051   * @param  None
00052   * @retval None
00053   */
00054 void main(void)
00055 {
00056     uint8_t i =0;
00057     FlagStatus IllOpFlag = RESET;
00058 
00059     enableInterrupts();
00060 
00061     /* GPIO Configuration ------------------------------------------*/
00062     GPIO_Config();
00063                 
00064     /* Unlock Flash */
00065     FLASH_Unlock(FLASH_MEMTYPE_PROG);
00066                 
00067     /* Get Illegal Opcode flag status */
00068     IllOpFlag = RST_GetFlagStatus(RST_FLAG_ILLOPF);
00069 
00070     /* Test if a ILLOP Reset has occurred */
00071     if (IllOpFlag)
00072     {
00073         for (i=0;i<50;i++)
00074         {
00075             /* An ILLOP Reset has occurred, Toggles LD1, LD2, LD3 and LD4 */
00076             STM_EVAL_LEDToggle(LED1);
00077             STM_EVAL_LEDToggle(LED2);
00078             STM_EVAL_LEDToggle(LED3);
00079             STM_EVAL_LEDToggle(LED4);
00080             /* delay */
00081             Delay(0x7FFF);
00082         }
00083         /* Clear ILLOP Flag */
00084         RST_ClearFlag(RST_FLAG_ILLOPF);
00085     }
00086 
00087     /* Write an illegal opcode */
00088     FLASH_ProgramByte(0x9FFF, 0x75);
00089 
00090     while (1)
00091     {
00092         /* Toggle Leds */
00093                                 STM_EVAL_LEDToggle(LED1);
00094         STM_EVAL_LEDToggle(LED2);
00095         STM_EVAL_LEDToggle(LED3);
00096         STM_EVAL_LEDToggle(LED4);
00097         Delay(0xFFFF);
00098     }
00099 
00100 }
00101 
00102 /**
00103   * @brief  Configure GPIO for LEDs and buttons available on the evaluation board
00104   * @param  None
00105   * @retval None
00106   */
00107 static void GPIO_Config(void)
00108 {
00109     /* Initialize LEDs mounted on STM8-128 EVAL board */
00110     STM_EVAL_LEDInit(LED1);
00111     STM_EVAL_LEDInit(LED2);
00112     STM_EVAL_LEDInit(LED3);
00113     STM_EVAL_LEDInit(LED4);
00114 
00115     /* Initialize KEY pushbutton mounted on STM8-128 EVAL board */
00116     STM_EVAL_PBInit(BUTTON_KEY, BUTTON_MODE_EXTI);
00117     
00118     /* Switch LEDs Off */
00119     STM_EVAL_LEDOff(LED1);
00120     STM_EVAL_LEDOff(LED2);
00121     STM_EVAL_LEDOff(LED3);
00122     STM_EVAL_LEDOff(LED4);
00123 }
00124 
00125 /**
00126   * @brief  Delay.
00127   * @param  nCount
00128   * @retval None
00129   */
00130 void Delay(uint16_t nCount)
00131 {
00132     /* Decrement nCount value */
00133     while (nCount != 0)
00134     {
00135         nCount--;
00136     }
00137 }
00138 
00139 #ifdef USE_FULL_ASSERT
00140 
00141 /**
00142   * @brief  Reports the name of the source file and the source line number
00143   *   where the assert_param error has occurred.
00144   * @param file: pointer to the source file name
00145   * @param line: assert_param error line source number
00146   * @retval None
00147   */
00148 void assert_failed(uint8_t* file, uint32_t line)
00149 { 
00150   /* User can add his own implementation to report the file name and line number,
00151      ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
00152 
00153   /* Infinite loop */
00154   while (1)
00155   {
00156   }
00157 }
00158 #endif
00159 
00160 /**
00161   * @}
00162   */
00163 
00164 
00165 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/