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/*!
* @file apm32f0xx_iwdt.c
*
* @brief This file contains all the functions for the IWDT peripheral
*
* @version V1.0.3
*
* @date 2022-09-20
*
* @attention
*
* Copyright (C) 2020-2022 Geehy Semiconductor
*
* You may not use this file except in compliance with the
* GEEHY COPYRIGHT NOTICE (GEEHY SOFTWARE PACKAGE LICENSE).
*
* The program is only for reference, which is distributed in the hope
* that it will be useful and instructional for customers to develop
* their software. Unless required by applicable law or agreed to in
* writing, the program is distributed on an "AS IS" BASIS, WITHOUT
* ANY WARRANTY OR CONDITIONS OF ANY KIND, either express or implied.
* See the GEEHY SOFTWARE PACKAGE LICENSE for the governing permissions
* and limitations under the License.
*/
#include "apm32f0xx_iwdt.h"
/** @addtogroup APM32F0xx_StdPeriphDriver
@{
*/
/** @addtogroup IWDT_Driver
@{
*/
/** @defgroup IWDT_Macros Macros
@{
*/
/**@} end of group IWDT_Macros*/
/** @defgroup IWDT_Enumerations Enumerations
@{
*/
/**@} end of group IWDT_Enumerations*/
/** @defgroup IWDT_Structures Structures
@{
*/
/**@} end of group IWDT_Structures*/
/** @defgroup IWDT_Variables Variables
@{
*/
/**@} end of group IWDT_Variables*/
/** @defgroup IWDT_Functions Functions
@{
*/
/*!
* @brief Enable IWDT
*
* @param None
*
* @retval None
*/
void IWDT_Enable(void)
{
IWDT->KEY = IWDT_KEY_ENABLE;
}
/*!
* @brief Enable write access to Divider and Counter Reload registers
*
* @param None
*
* @retval None
*/
void IWDT_EnableWriteAccess(void)
{
IWDT->KEY = IWDT_KEY_ACCESS;
}
/*!
* @brief Disable write access to Divider and Counter Reload registers
*
* @param None
*
* @retval None
*/
void IWDT_DisableWriteAccess(void)
{
IWDT->KEY = 0;
}
/*!
* @brief Refresh IWDT
*
* @param None
*
* @retval None
*/
void IWDT_Refresh(void)
{
IWDT->KEY = IWDT_KEY_REFRESH;
}
/*!
* @brief Divider configuration
*
* @param div: Specifies the divider
* The parameter can be one of following values:
* @arg IWDT_DIV_4: Prescaler divider 4
* @arg IWDT_DIV_8: Prescaler divider 8
* @arg IWDT_DIV_16: Prescaler divider 16
* @arg IWDT_DIV_32: Prescaler divider 32
* @arg IWDT_DIV_64: Prescaler divider 64
* @arg IWDT_DIV_128: Prescaler divider 128
* @arg IWDT_DIV_256: Prescaler divider 256
*
* @retval None
*/
void IWDT_ConfigDivider(IWDT_DIV_T div)
{
IWDT->PSC = (uint32_t)div;
}
/*!
* @brief Set counter reload value
*
* @param reload: Specifies the reload value
*
* @retval None
*/
void IWDT_ConfigReload(uint16_t reload)
{
IWDT->CNTRLD = (uint32_t)reload;
}
/*!
* @brief Set counter reload value
*
* @param reload: Specifies the reload value
*
* @retval None
*/
void IWDT_ConfigWindowValue(uint16_t windowValue)
{
IWDT->WIN = (uint32_t)windowValue;
}
/*!
* @brief Read the specified IWDT flag
*
* @param flag: Specifies the flag to read
* The parameter can be one of following values:
* @arg IWDT_FLAG_DIVU: Watchdog prescaler value update
* @arg IWDT_FLAG_CNTU: Watchdog counter reload value update
* @arg IWDT_FLAG_WINU: Watchdog counter window value update
*
* @retval status of IWDT_FLAG (SET or RESET)
*/
uint8_t IWDT_ReadStatusFlag(uint8_t flag)
{
uint8_t bitStatus = RESET;
if ((IWDT->STS & flag) != (uint32_t)RESET)
{
bitStatus = SET;
}
else
{
bitStatus = RESET;
}
return bitStatus;
}
/**@} end of group IWDT_Functions*/
/**@} end of group IWDT_Driver */
/**@} end of group APM32F0xx_StdPeriphDriver*/
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