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138 lines
2.6 KiB
C
138 lines
2.6 KiB
C
/*!
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* @file apm32f0xx_wwdt.c
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*
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* @brief This file contains all the functions for the WWDG peripheral
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*
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* @version V1.0.1
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*
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* @date 2021-07-01
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*
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*/
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#include "apm32f0xx_wwdt.h"
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#include "apm32f0xx_rcm.h"
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/** @addtogroup Peripherals_Library Standard Peripheral Library
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@{
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*/
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/** @addtogroup WWDT_Driver WWDT Driver
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@{
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*/
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/** @addtogroup WWDT_Fuctions Fuctions
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@{
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*/
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/*!
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* @brief Set the WWDT peripheral registers to their default reset values
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*
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* @param None
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* @retval None
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*/
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void WWDT_Reset(void)
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{
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RCM_EnableAPB1PeriphReset(RCM_APB1_PERIPH_WWDT);
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RCM_DisableAPB1PeriphReset(RCM_APB1_PERIPH_WWDT);
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}
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/*!
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* @brief Set the WWDT Timebase
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*
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* @param timebase: WWDT Prescaler
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* The parameter can be one of following values:
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* @arg WWDT_DIV_1: WWDT counter clock = (PCLK1/4096)/1
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* @arg WWDT_DIV_2: WWDT counter clock = (PCLK1/4096)/2
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* @arg WWDT_DIV_4: WWDT counter clock = (PCLK1/4096)/4
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* @arg WWDT_DIV_8: WWDT counter clock = (PCLK1/4096)/8
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*
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* @retval None
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*/
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void WWDT_SetTimebase(uint32_t div)
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{
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WWDT->CFG_B.TBPSC = 0;
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WWDT->CFG_B.TBPSC = div;
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}
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/*!
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* @brief Set the Window data
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*
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* @param data: Specifies the window data to be set
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*
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* @retval None
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*/
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void WWDT_ConfigWindowValue(uint16_t windowValue)
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{
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uint32_t reg;
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reg = (windowValue | BIT6) & 0x7f;
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WWDT->CFG_B.WIN = reg;
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}
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/*!
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* @brief Enable the WWDT Early Wakeup interrupt
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*
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* @param None
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*
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* @retval None
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*/
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void WWDT_EnableEWI(void)
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{
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WWDT->CFG_B.EWIEN = SET;
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}
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/*!
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* @brief Set counter
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*
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* @param couter: Specifies the counter to be set
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*
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* @retval None
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*/
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void WWDT_ConfigCounter(uint8_t couter)
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{
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WWDT->CTRL = (uint32_t)(couter & 0x7f);
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}
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/*!
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* @brief Enable WWDT and set the counter value
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*
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* @param count: the window watchdog counter value
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*
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* @retval None
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*/
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void WWDT_Enable(uint8_t count)
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{
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WWDT->CTRL_B.CNT = count;
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WWDT->CTRL_B.WWDTEN = SET;
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}
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/*!
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* @brief Read the Early Wakeup interrupt flag
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*
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* @param None
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*
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* @retval the state of the Early Wakeup interrupt flag
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*/
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uint8_t WWDT_ReadStatusFlag(void)
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{
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return (uint8_t) (WWDT->STS);
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}
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/*!
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* @brief Clear the Early Wakeup interrupt flag
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*
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* @param None
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*
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* @retval None
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*/
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void WWDT_ClearStatusFlag(void)
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{
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WWDT->STS_B.EWIFLG = RESET;
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}
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/**@} end of group WWDT_Fuctions*/
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/**@} end of group WWDT_Driver */
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/**@} end of group Peripherals_Library*/
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