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   1 /******************** (C) COPYRIGHT 2007 STMicroelectronics ********************\r
   2 * File Name          : stm32f10x_iwdg.h\r
   3 * Author             : MCD Application Team\r
   4 * Date First Issued  : 09/29/2006\r
   5 * Description        : This file contains all the functions prototypes for the\r
   6 *                      IWDG firmware library.\r
   7 ********************************************************************************\r
   8 * History:\r
   9 * 04/02/2007: V0.2\r
  10 * 02/05/2007: V0.1\r
  11 * 09/29/2006: V0.01\r
  12 ********************************************************************************\r
  13 * THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS\r
  14 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.\r
  15 * AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,\r
  16 * INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE\r
  17 * CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING\r
  18 * INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.\r
  19 *******************************************************************************/\r
  20 \r
  21 /* Define to prevent recursive inclusion -------------------------------------*/\r
  22 #ifndef __STM32F10x_IWDG_H\r
  23 #define __STM32F10x_IWDG_H\r
  24 \r
  25 /* Includes ------------------------------------------------------------------*/\r
  26 #include "stm32f10x_map.h"\r
  27 \r
  28 /* Exported types ------------------------------------------------------------*/\r
  29 /* Exported constants --------------------------------------------------------*/\r
  30 /* Write access to IWDG_PR and IWDG_RLR registers */\r
  31 #define IWDG_WriteAccess_Enable     ((u16)0x5555)\r
  32 #define IWDG_WriteAccess_Disable    ((u16)0x0000)\r
  33 \r
  34 #define IS_IWDG_WRITE_ACCESS(ACCESS) ((ACCESS == IWDG_WriteAccess_Enable) || \\r
  35                                       (ACCESS == IWDG_WriteAccess_Disable))\r
  36 \r
  37 /* IWDG prescaler */\r
  38 #define IWDG_Prescaler_4            ((u8)0x00)\r
  39 #define IWDG_Prescaler_8            ((u8)0x01)\r
  40 #define IWDG_Prescaler_16           ((u8)0x02)\r
  41 #define IWDG_Prescaler_32           ((u8)0x03)\r
  42 #define IWDG_Prescaler_64           ((u8)0x04)\r
  43 #define IWDG_Prescaler_128          ((u8)0x05)\r
  44 #define IWDG_Prescaler_256          ((u8)0x06)\r
  45 \r
  46 #define IS_IWDG_PRESCALER(PRESCALER) ((PRESCALER == IWDG_Prescaler_4)  || \\r
  47                                       (PRESCALER == IWDG_Prescaler_8)  || \\r
  48                                       (PRESCALER == IWDG_Prescaler_16) || \\r
  49                                       (PRESCALER == IWDG_Prescaler_32) || \\r
  50                                       (PRESCALER == IWDG_Prescaler_64) || \\r
  51                                       (PRESCALER == IWDG_Prescaler_128)|| \\r
  52                                       (PRESCALER == IWDG_Prescaler_256))\r
  53 \r
  54 /* IWDG Flag */\r
  55 #define IWDG_FLAG_PVU               ((u16)0x0001)\r
  56 #define IWDG_FLAG_RVU               ((u16)0x0002)\r
  57 \r
  58 #define IS_IWDG_FLAG(FLAG) ((FLAG == IWDG_FLAG_PVU) || (FLAG == IWDG_FLAG_RVU))\r
  59 \r
  60 #define IS_IWDG_RELOAD(RELOAD) (RELOAD <= 0xFFF)\r
  61 \r
  62 /* Exported macro ------------------------------------------------------------*/\r
  63 /* Exported functions ------------------------------------------------------- */\r
  64 void IWDG_WriteAccessCmd(u16 IWDG_WriteAccess);\r
  65 void IWDG_SetPrescaler(u8 IWDG_Prescaler);\r
  66 void IWDG_SetReload(u16 Reload);\r
  67 void IWDG_ReloadCounter(void);\r
  68 void IWDG_Enable(void);\r
  69 FlagStatus IWDG_GetFlagStatus(u16 IWDG_FLAG);\r
  70 \r
  71 #endif /* __STM32F10x_IWDG_H */\r
  72 \r
  73 /******************* (C) COPYRIGHT 2007 STMicroelectronics *****END OF FILE****/\r