rt-thread/bsp/at32/libraries/f415/firmware/drivers/inc/at32f415_wdt.h

/**
  **************************************************************************
  * @file     at32f415_wdt.h
  * @version  v2.0.4
  * @date     2022-04-02
  * @brief    at32f415 wdt header file
  **************************************************************************
  *                       Copyright notice & Disclaimer
  *
  * The software Board Support Package (BSP) that is made available to
  * download from Artery official website is the copyrighted work of Artery.
  * Artery authorizes customers to use, copy, and distribute the BSP
  * software and its related documentation for the purpose of design and
  * development in conjunction with Artery microcontrollers. Use of the
  * software is governed by this copyright notice and the following disclaimer.
  *
  * THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
  * GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
  * TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
  * STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
  * INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
  *
  **************************************************************************
  */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __AT32F415_WDT_H
#define __AT32F415_WDT_H

#ifdef __cplusplus
extern "C" {
#endif


/* Includes ------------------------------------------------------------------*/
#include "at32f415.h"

/** @addtogroup AT32F415_periph_driver
  * @{
  */

/** @addtogroup WDT
  * @{
  */


/** @defgroup WDT_flags_definition
  * @brief wdt flag
  * @{
  */

#define WDT_DIVF_UPDATE_FLAG             ((uint16_t)0x0001) /*!< wdt division value update complete flag */
#define WDT_RLDF_UPDATE_FLAG             ((uint16_t)0x0002) /*!< wdt reload value update complete flag */

/**
  * @}
  */

/** @defgroup WDT_exported_types
  * @{
  */

/**
  * @brief wdt division value type
  */
typedef enum
{
  WDT_CLK_DIV_4                          = 0x00, /*!< wdt clock divider value is 4 */
  WDT_CLK_DIV_8                          = 0x01, /*!< wdt clock divider value is 8 */
  WDT_CLK_DIV_16                         = 0x02, /*!< wdt clock divider value is 16 */
  WDT_CLK_DIV_32                         = 0x03, /*!< wdt clock divider value is 32 */
  WDT_CLK_DIV_64                         = 0x04, /*!< wdt clock divider value is 64 */
  WDT_CLK_DIV_128                        = 0x05, /*!< wdt clock divider value is 128 */
  WDT_CLK_DIV_256                        = 0x06  /*!< wdt clock divider value is 256 */
} wdt_division_type;

/**
  * @brief wdt cmd value type
  */
typedef enum
{
  WDT_CMD_LOCK                           = 0x0000, /*!< disable write protection command */
  WDT_CMD_UNLOCK                         = 0x5555, /*!< enable write protection command */
  WDT_CMD_ENABLE                         = 0xCCCC, /*!< enable wdt command */
  WDT_CMD_RELOAD                         = 0xAAAA  /*!< reload command */
} wdt_cmd_value_type;

/**
  * @brief type define wdt register all
  */
typedef struct
{

  /**
    * @brief wdt cmd register, offset:0x00
    */
  union
  {
    __IO uint32_t cmd;
    struct
    {
      __IO uint32_t cmd                  : 16;/* [15:0] */
      __IO uint32_t reserved1            : 16;/* [31:16] */
    } cmd_bit;
  };

  /**
    * @brief wdt div register, offset:0x04
    */
  union
  {
    __IO uint32_t div;
    struct
    {
      __IO uint32_t div                   : 3; /* [2:0] */
      __IO uint32_t reserved1            : 29;/* [31:3] */
    } div_bit;
  };

   /**
    * @brief wdt rld register, offset:0x08
    */
  union
  {
    __IO uint32_t rld;
    struct
    {
      __IO uint32_t rld                  : 12;/* [11:0] */
      __IO uint32_t reserved1            : 20;/* [31:12] */
    } rld_bit;
  };

  /**
  * @brief wdt sts register, offset:0x0C
  */
  union
  {
    __IO uint32_t sts;
    struct
    {
      __IO uint32_t divf                 : 1; /* [0] */
      __IO uint32_t rldf                 : 1; /* [1] */
      __IO uint32_t reserved1            : 30;/* [31:2] */
    } sts_bit;
  };

} wdt_type;

/**
  * @}
  */

#define WDT                             ((wdt_type *) WDT_BASE)

/** @defgroup WDT_exported_functions
  * @{
  */

void wdt_enable(void);
void wdt_counter_reload(void);
void wdt_reload_value_set(uint16_t reload_value);
void wdt_divider_set(wdt_division_type division);
void wdt_register_write_enable( confirm_state new_state);
flag_status wdt_flag_get(uint16_t wdt_flag);

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

#ifdef __cplusplus
}
#endif

#endif