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/*!
* @file apm32f4xx_wwdt.c
*
* @brief This file contains all the functions for the WWDT peripheral
*
* @version V1.0.2
*
* @date 2022-06-23
*
* @attention
*
* Copyright (C) 2021-2022 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 usefull 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 "apm32f4xx_wwdt.h"
#include "apm32f4xx_rcm.h"
/** @addtogroup APM32F4xx_StdPeriphDriver
@{
*/
/** @defgroup WWDT_Driver
* @brief WWDT driver modules
@{
*/
/** @defgroup WWDT_Functions
@{
*/
/*!
* @brief Reset the WWDT peripheral registers to the default value.
*
* @param None
*
* @retval None
*/
void WWDT_Reset(void)
{
RCM_EnableAPB1PeriphReset(RCM_APB1_PERIPH_WWDT);
RCM_DisableAPB1PeriphReset(RCM_APB1_PERIPH_WWDT);
}
/*!
* @brief Config the WWDT Timer Base Prescaler Factor.
*
* @param timebase: Specifies WWDT Prescaler
* The parameter can be one of following values:
* @arg WWDT_TIME_BASE_1 : WWDT counter clock = (PCLK1/4096)/1
* @arg WWDT_TIME_BASE_2 : WWDT counter clock = (PCLK1/4096)/2
* @arg WWDT_TIME_BASE_4 : WWDT counter clock = (PCLK1/4096)/4
* @arg WWDT_TIME_BASE_8 : WWDT counter clock = (PCLK1/4096)/8
*
* @retval None
*/
void WWDT_ConfigTimebase(WWDT_TIME_BASE_T timeBase)
{
WWDT->CFG_B.TBPSC = timeBase;
}
/*!
* @brief Config the WWDT Window data
*
* @param windowdata: window data which compare with the downcounter
*
* @retval None
*
* @note The windowdata must be lower than 0x80
*/
void WWDT_ConfigWindowData(uint8_t windowData)
{
WWDT->CFG_B.WIN = windowData;
}
/*!
* @brief Config the WWDT counter value
*
* @param counter: Specifies the watchdog counter value.
*
* @retval None
*
* @note The counter must be from 0x40 to 0x7F.
*/
void WWDT_ConfigCounter(uint8_t counter)
{
WWDT->CTRL_B.CNT = counter;
}
/*!
* @brief Enable the WWDT Early Wakeup interrupt
*
* @param None
*
* @retval None
*/
void WWDT_EnableEWI(void)
{
WWDT->CFG_B.EWIEN = SET;
}
/*!
* @brief Enable WWDT and set the counter value
*
* @param counter: the window watchdog counter value
*
* @retval None
*
* @note The counter between 0x40 and 0x7F
*/
void WWDT_Enable(uint8_t counter)
{
WWDT->CTRL = counter | 0x00000080;
}
/*!
* @brief Checks whether the Early Wakeup interrupt flag is set or not.
*
* @param None
*
* @retval SET or RESET
*/
uint8_t WWDT_ReadFlag(void)
{
return (WWDT->STS_B.EWIFLG);
}
/*!
* @brief Clear the Early Wakeup interrupt flag
*
* @param None
*
* @retval None
*/
void WWDT_ClearFlag(void)
{
WWDT->STS_B.EWIFLG = RESET;
}
/**@} end of group WWDT_Functions */
/**@} end of group WWDT_Driver */
/**@} end of group APM32F4xx_StdPeriphDriver */
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