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/*!
* @file apm32f0xx_wwdt.c
*
* @brief This file contains all the functions for the WWDG 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_wwdt.h"
#include "apm32f0xx_rcm.h"
/** @addtogroup APM32F0xx_StdPeriphDriver
@{
*/
/** @addtogroup WWDT_Driver WWDT Driver
@{
*/
/** @defgroup WWDT_Macros Macros
@{
*/
/**@} end of group WWDT_Macros */
/** @defgroup WWDT_Enumerations Enumerations
@{
*/
/**@} end of group WWDT_Enumerations */
/** @defgroup WWDT_Structures Structures
@{
*/
/**@} end of group WWDT_Structures */
/** @defgroup WWDT_Variables Variables
@{
*/
/**@} end of group WWDT_Variables */
/** @defgroup WWDT_Functions Functions
@{
*/
/*!
* @brief Set the WWDT peripheral registers to their default reset values
*
* @param None
* @retval None
*/
void WWDT_Reset(void)
{
RCM_EnableAPB1PeriphReset(RCM_APB1_PERIPH_WWDT);
RCM_DisableAPB1PeriphReset(RCM_APB1_PERIPH_WWDT);
}
/*!
* @brief Set the WWDT Timebase
*
* @param timebase: WWDT Prescaler
* The parameter can be one of following values:
* @arg WWDT_DIV_1: WWDT counter clock = (PCLK1/4096)/1
* @arg WWDT_DIV_2: WWDT counter clock = (PCLK1/4096)/2
* @arg WWDT_DIV_4: WWDT counter clock = (PCLK1/4096)/4
* @arg WWDT_DIV_8: WWDT counter clock = (PCLK1/4096)/8
*
* @retval None
*/
void WWDT_SetTimebase(uint32_t div)
{
WWDT->CFG_B.TBPSC = 0;
WWDT->CFG_B.TBPSC = div;
}
/*!
* @brief Set the Window data
*
* @param data: Specifies the window data to be set
*
* @retval None
*/
void WWDT_ConfigWindowValue(uint16_t windowValue)
{
uint32_t reg;
reg = (windowValue | BIT6) & 0x7f;
WWDT->CFG_B.WIN = reg;
}
/*!
* @brief Enable the WWDT Early Wakeup interrupt
*
* @param None
*
* @retval None
*/
void WWDT_EnableEWI(void)
{
WWDT->CFG_B.EWIEN = SET;
}
/*!
* @brief Set counter
*
* @param couter: Specifies the counter to be set
*
* @retval None
*/
void WWDT_ConfigCounter(uint8_t couter)
{
WWDT->CTRL = (uint32_t)(couter & 0x7f);
}
/*!
* @brief Enable WWDT and set the counter value
*
* @param count: the window watchdog counter value
*
* @retval None
*/
void WWDT_Enable(uint8_t count)
{
WWDT->CTRL_B.CNT = count;
WWDT->CTRL_B.WWDTEN = SET;
}
/*!
* @brief Read the Early Wakeup interrupt flag
*
* @param None
*
* @retval the state of the Early Wakeup interrupt flag
*/
uint8_t WWDT_ReadStatusFlag(void)
{
return (uint8_t)(WWDT->STS);
}
/*!
* @brief Clear the Early Wakeup interrupt flag
*
* @param None
*
* @retval None
*/
void WWDT_ClearStatusFlag(void)
{
WWDT->STS_B.EWIFLG = RESET;
}
/**@} end of group WWDT_Functions*/
/**@} end of group WWDT_Driver */
/**@} end of group APM32F0xx_StdPeriphDriver*/
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