rt-thread/bsp/fm33lc026/libraries/FM33LC0xx_FL_Driver/Src/fm33lc0xx_fl_iwdt.c

/**
  ****************************************************************************************************
  * @file    fm33lc0xx_fl_iwdt.c
  * @author  FMSH Application Team
  * @brief   Src file of IWDT FL Module
  ****************************************************************************************************
  * @attention
  *
  * Copyright (c) [2019] [Fudan Microelectronics]
  * THIS SOFTWARE is licensed under the Mulan PSL v1.
  * can use this software according to the terms and conditions of the Mulan PSL v1.
  * You may obtain a copy of Mulan PSL v1 at:
  * http://license.coscl.org.cn/MulanPSL
  * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
  * PURPOSE.
  * See the Mulan PSL v1 for more details.
  *
  ****************************************************************************************************
  */
/* Includes ------------------------------------------------------------------*/
#include "fm33lc0xx_fl_rcc.h"
#include "fm33lc0xx_fl_iwdt.h"
#include "fm33_assert.h"

/** @addtogroup FM33LC0XX_FL_Driver
  * @{
  */

/** @addtogroup IWDT
  * @{
  */

/* Private macros ------------------------------------------------------------*/
/** @addtogroup IWDT_FL_Private_Macros
  * @{
  */
#define         IS_IWDT_INSTANCE(INTANCE)                    ((INTANCE) == IWDT)

#define         IS_FL_IWDT_WINDOWSVEL(__VALUE__)                ((__VALUE__) < 0xFFF)

#define         IS_FL_IWDT_OVERFLOWPERIOD(__VALUE__)            (((__VALUE__) == FL_IWDT_PERIOD_125MS)||\
                                                                 ((__VALUE__) == FL_IWDT_PERIOD_250MS)||\
                                                                 ((__VALUE__) == FL_IWDT_PERIOD_500MS)||\
                                                                 ((__VALUE__) == FL_IWDT_PERIOD_1000MS)||\
                                                                 ((__VALUE__) == FL_IWDT_PERIOD_2000MS)||\
                                                                 ((__VALUE__) == FL_IWDT_PERIOD_4000MS)||\
                                                                 ((__VALUE__) == FL_IWDT_PERIOD_8000MS)||\
                                                                 ((__VALUE__) == FL_IWDT_PERIOD_16000MS))
/**
  * @}
  */

/** @addtogroup IWDT_FL_EF_Init
  * @{
  */

/**
  * @brief  复位IWDT外设
  *
  * @note   此函数只能用于配制前复位外设，因为IWDT开启后不可以关闭
  *
  * @param  IWDTx 外设入口地址
  *
  * @retval 错误状态，可能值：
  *         -FL_PASS 外设寄存器值恢复复位值
  *         -FL_FAIL 未成功执行
  */
FL_ErrorStatus FL_IWDT_DeInit(IWDT_Type *IWDTx)
{
    assert_param(IS_IWDT_INSTANCE(IWDTx));
    return FL_PASS;
}

/**
  * @brief  配置IWDT
  *
  * @note   IWTD使能后将无法关闭，直到下一次芯片复位
  *
  * @param  IWDTx  外设入口地址
  * @param  IWDT_InitStruct 指向 @ref FL_IWDT_InitTypeDef 结构体的指针
  *
  * @retval 错误状态，可能值：
  *         -FL_PASS 配置成功
  *         -FL_FAIL 配置过程发生错误
  */
FL_ErrorStatus FL_IWDT_Init(IWDT_Type *IWDTx, FL_IWDT_InitTypeDef *IWDT_InitStruct)
{
    FL_ErrorStatus status = FL_PASS;
    /* 入口参数检查 */
    assert_param(IS_IWDT_INSTANCE(IWDTx));
    assert_param(IS_FL_IWDT_WINDOWSVEL(IWDT_InitStruct->iwdtWindows));
    assert_param(IS_FL_IWDT_OVERFLOWPERIOD(IWDT_InitStruct->overflowPeriod));
    /* 开启总线时钟 */
    FL_RCC_EnableGroup1BusClock(FL_RCC_GROUP1_BUSCLK_IWDT);
    /* 配置独立看门狗溢出周期 */
    FL_IWDT_SetPeriod(IWDTx, IWDT_InitStruct->overflowPeriod);
    /* 配置独立看门狗清狗窗口*/
    FL_IWDT_WriteWindow(IWDTx, IWDT_InitStruct->iwdtWindows);
    /* 启动看门狗 */
    FL_IWDT_ReloadCounter(IWDTx);
    return status;
}

/**
  * @brief  将 @ref FL_IWDT_InitTypeDef 结构体初始化为默认配置
  * @param  IWDT_InitStruct 指向 @ref FL_IWDT_InitTypeDef 结构体的指针
  *
  * @retval None
  */
void FL_IWDT_StructInit(FL_IWDT_InitTypeDef *IWDT_InitStruct)
{
    /* 默认不使用窗口 */
    IWDT_InitStruct->iwdtWindows    = 0;
    /*最长溢出时间*/
    IWDT_InitStruct->overflowPeriod = FL_IWDT_PERIOD_500MS;
}

/**
  *@}
  */

/**
  *@}
  */

/**
  *@}
  */

/******************************************* END OF FILE *******************************************/