lib/main/AT32F43x/Drivers/AT32F43x_StdPeriph_Driver/src/at32f435_437_wwdt.c

   1 /**
   2   **************************************************************************
   3   * @file     at32f435_437_wwdt.c
   4   * @version  v2.1.0
   5   * @date     2022-08-16
   6   * @brief    contains all the functions for the wwdt 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 WWDT
  34   * @brief WWDT driver modules
  35   * @{
  36   */
  37
  38 #ifdef WWDT_MODULE_ENABLED
  39
  40 /** @defgroup WWDT_private_functions
  41   * @{
  42   */
  43
  44 /**
  45   * @brief  wwdt reset by crm reset register
  46   * @retval none
  47   */
  48 void wwdt_reset(void)
  49 {
  50   crm_periph_reset(CRM_WWDT_PERIPH_RESET, TRUE);
  51   crm_periph_reset(CRM_WWDT_PERIPH_RESET, FALSE);
  52 }
  53
  54 /**
  55   * @brief  wwdt division set
  56   * @param  division
  57   *         this parameter can be one of the following values:
  58   *         - WWDT_PCLK1_DIV_4096        (wwdt counter clock = (pclk1/4096)/1)
  59   *         - WWDT_PCLK1_DIV_8192        (wwdt counter clock = (pclk1/4096)/2)
  60   *         - WWDT_PCLK1_DIV_16384       (wwdt counter clock = (pclk1/4096)/4)
  61   *         - WWDT_PCLK1_DIV_32768       (wwdt counter clock = (pclk1/4096)/8)
  62   * @retval none
  63   */
  64 void wwdt_divider_set(wwdt_division_type division)
  65 {
  66   WWDT->cfg_bit.div = division;
  67 }
  68
  69 /**
  70   * @brief  wwdt reload counter interrupt flag clear
  71   * @param  none
  72   * @retval none
  73   */
  74 void wwdt_flag_clear(void)
  75 {
  76   WWDT->sts = 0;
  77 }
  78
  79 /**
  80   * @brief  wwdt enable and the counter value load
  81   * @param  wwdt_cnt (0x40~0x7f)
  82   * @retval none
  83   */
  84 void wwdt_enable(uint8_t wwdt_cnt)
  85 {
  86   WWDT->ctrl = wwdt_cnt | WWDT_EN_BIT;
  87 }
  88
  89 /**
  90   * @brief  wwdt reload counter interrupt enable
  91   * @param  none
  92   * @retval none
  93   */
  94 void wwdt_interrupt_enable(void)
  95 {
  96   WWDT->cfg_bit.rldien = TRUE;
  97 }
  98
  99 /**
 100   * @brief  wwdt reload counter interrupt flag get
 101   * @param  none
 102   * @retval state of reload counter interrupt flag
 103   */
 104 flag_status wwdt_flag_get(void)
 105 {
 106   return (flag_status)WWDT->sts_bit.rldf;
 107 }
 108
 109 /**
 110   * @brief  wwdt counter value set
 111   * @param  wwdt_cnt (0x40~0x7f)
 112   * @retval none
 113   */
 114 void wwdt_counter_set(uint8_t wwdt_cnt)
 115 {
 116   WWDT->ctrl_bit.cnt = wwdt_cnt;
 117 }
 118
 119 /**
 120   * @brief  wwdt window counter value set
 121   * @param  window_cnt (0x40~0x7f)
 122   * @retval none
 123   */
 124 void wwdt_window_counter_set(uint8_t window_cnt)
 125 {
 126   WWDT->cfg_bit.win = window_cnt;
 127 }
 128
 129 /**
 130   * @}
 131   */
 132
 133 #endif
 134
 135 /**
 136   * @}
 137   */
 138
 139 /**
 140   * @}
 141   */