lib/main/AT32F43x/Drivers/AT32F43x_StdPeriph_Driver/src/at32f435_437_wdt.c

   1 /**
   2   **************************************************************************
   3   * @file     at32f435_437_wdt.c
   4   * @version  v2.1.0
   5   * @date     2022-08-16
   6   * @brief    contains all the functions for the wdt firmware library
   7   **************************************************************************
   8   *                       Copyright notice & Disclaimer
   9   *
  10   * The software Board Support Package (BSP) that is made available to
  11   * download from Artery official website is the copyrighted work of Artery.
  12   * Artery authorizes customers to use, copy, and distribute the BSP
  13   * software and its related documentation for the purpose of design and
  14   * development in conjunction with Artery microcontrollers. Use of the
  15   * software is governed by this copyright notice and the following disclaimer.
  16   *
  17   * THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
  18   * GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
  19   * TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
  20   * STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
  21   * INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
  22   * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
  23   *
  24   **************************************************************************
  25   */
  26
  27 #include "at32f435_437_conf.h"
  28
  29 /** @addtogroup AT32F435_437_periph_driver
  30   * @{
  31   */
  32
  33 /** @defgroup WDT
  34   * @brief WDT driver modules
  35   * @{
  36   */
  37
  38 #ifdef WDT_MODULE_ENABLED
  39
  40 /** @defgroup WDT_private_functions
  41   * @{
  42   */
  43
  44 /**
  45   * @brief  wdt enable ,the reload value will be sent to the counter
  46   * @param  none
  47   * @retval none
  48   */
  49 void wdt_enable(void)
  50 {
  51   WDT->cmd = WDT_CMD_ENABLE;
  52 }
  53
  54 /**
  55   * @brief  reload wdt counter
  56   * @param  none
  57   * @retval none
  58   */
  59 void wdt_counter_reload(void)
  60 {
  61   WDT->cmd = WDT_CMD_RELOAD;
  62 }
  63
  64 /**
  65   * @brief  set wdt counter reload value
  66   * @param  reload_value (0x0000~0x0FFF)
  67   * @retval none
  68   */
  69 void wdt_reload_value_set(uint16_t reload_value)
  70 {
  71   WDT->rld = reload_value;
  72 }
  73
  74 /**
  75   * @brief  set wdt division divider
  76   * @param  division
  77   *         this parameter can be one of the following values:
  78   *         - WDT_CLK_DIV_4
  79   *         - WDT_CLK_DIV_8
  80   *         - WDT_CLK_DIV_16
  81   *         - WDT_CLK_DIV_32
  82   *         - WDT_CLK_DIV_64
  83   *         - WDT_CLK_DIV_128
  84   *         - WDT_CLK_DIV_256
  85   * @retval none
  86   */
  87 void wdt_divider_set(wdt_division_type division)
  88 {
  89   WDT->div_bit.div = division;
  90 }
  91
  92 /**
  93   * @brief  enable or disable wdt cmd register write
  94   * @param  new_state (TRUE or FALSE)
  95   * @retval none
  96   */
  97 void wdt_register_write_enable( confirm_state new_state)
  98 {
  99   if(new_state == FALSE)
 100   {
 101     WDT->cmd = WDT_CMD_LOCK;
 102   }
 103   else
 104   {
 105     WDT->cmd = WDT_CMD_UNLOCK;
 106   }
 107 }
 108
 109 /**
 110   * @brief  get wdt flag
 111   * @param  wdt_flag
 112   *         this parameter can be one of the following values:
 113   *         - WDT_DIVF_UPDATE_FLAG: division value update complete flag.
 114   *         - WDT_RLDF_UPDATE_FLAG: reload value update complete flag.
 115   *         - WDT_WINF_UPDATE_FLAG: window value update complete flag.
 116   * @retval state of wdt flag
 117   */
 118 flag_status wdt_flag_get(uint16_t wdt_flag)
 119 {
 120   flag_status status = RESET;
 121
 122   if ((WDT->sts & wdt_flag) != (uint16_t)RESET)
 123   {
 124     status = SET;
 125   }
 126   else
 127   {
 128     status = RESET;
 129   }
 130
 131   return status;
 132 }
 133
 134 /**
 135   * @brief  wdt window counter value set
 136   * @param  window_cnt (0x0000~0x0FFF)
 137   * @retval none
 138   */
 139 void wdt_window_counter_set(uint16_t window_cnt)
 140 {
 141   WDT->win_bit.win = window_cnt;
 142 }
 143
 144 /**
 145   * @}
 146   */
 147
 148 #endif
 149
 150 /**
 151   * @}
 152   */
 153
 154 /**
 155   * @}
 156   */