217 lines
6.3 KiB
C
217 lines
6.3 KiB
C
/******************************************************************************
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* Copyright (C) 2017, Huada Semiconductor Co.,Ltd All rights reserved.
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*
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* This software is owned and published by:
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* Huada Semiconductor Co.,Ltd ("HDSC").
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*
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* BY DOWNLOADING, INSTALLING OR USING THIS SOFTWARE, YOU AGREE TO BE BOUND
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* BY ALL THE TERMS AND CONDITIONS OF THIS AGREEMENT.
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*
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* This software contains source code for use with HDSC
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* components. This software is licensed by HDSC to be adapted only
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* for use in systems utilizing HDSC components. HDSC shall not be
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* responsible for misuse or illegal use of this software for devices not
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* supported herein. HDSC is providing this software "AS IS" and will
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* not be responsible for issues arising from incorrect user implementation
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* of the software.
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*
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* Disclaimer:
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* HDSC MAKES NO WARRANTY, EXPRESS OR IMPLIED, ARISING BY LAW OR OTHERWISE,
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* REGARDING THE SOFTWARE (INCLUDING ANY ACOOMPANYING WRITTEN MATERIALS),
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* ITS PERFORMANCE OR SUITABILITY FOR YOUR INTENDED USE, INCLUDING,
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* WITHOUT LIMITATION, THE IMPLIED WARRANTY OF MERCHANTABILITY, THE IMPLIED
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* WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR USE, AND THE IMPLIED
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* WARRANTY OF NONINFRINGEMENT.
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* HDSC SHALL HAVE NO LIABILITY (WHETHER IN CONTRACT, WARRANTY, TORT,
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* NEGLIGENCE OR OTHERWISE) FOR ANY DAMAGES WHATSOEVER (INCLUDING, WITHOUT
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* LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION,
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* LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY LOSS) ARISING FROM USE OR
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* INABILITY TO USE THE SOFTWARE, INCLUDING, WITHOUT LIMITATION, ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS OF DATA,
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* SAVINGS OR PROFITS,
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* EVEN IF Disclaimer HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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* YOU ASSUME ALL RESPONSIBILITIES FOR SELECTION OF THE SOFTWARE TO ACHIEVE YOUR
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* INTENDED RESULTS, AND FOR THE INSTALLATION OF, USE OF, AND RESULTS OBTAINED
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* FROM, THE SOFTWARE.
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*
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* This software may be replicated in part or whole for the licensed use,
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* with the restriction that this Disclaimer and Copyright notice must be
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* included with each copy of this software, whether used in part or whole,
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* at all times.
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*/
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/******************************************************************************/
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/** \file lvd.c
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**
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** Low Voltage Detect driver API.
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** @link Lvd Group Some description @endlink
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**
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** - 2017-06-28 Alex First Version
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**
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******************************************************************************/
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/******************************************************************************
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* Include files
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******************************************************************************/
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#include "hc32l196_lvd.h"
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/**
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******************************************************************************
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** \addtogroup LvdGroup
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******************************************************************************/
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//@{
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/******************************************************************************
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* Local pre-processor symbols/macros ('#define')
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******************************************************************************/
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#define IS_VALID_INPUT(x) ( (x) <= LvdInputPB07 )
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#define IS_VALID_THRESHOLD(x) ( (x) <= LvdTH3p3V )
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#define IS_VALID_FILTER(x) ( (x) <= LvdFilter29ms )
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#define IS_VALID_IRQTYPE(x) ( (x) <= LvdIrqFall )
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/******************************************************************************
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* Global variable definitions (declared in header file with 'extern') *
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******************************************************************************/
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/******************************************************************************
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* Local type definitions ('typedef')
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******************************************************************************/
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/******************************************************************************
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* Local function prototypes ('static')
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******************************************************************************/
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// static void LvdEnableNvic(void);
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// static void LvdDisableNvic(void);
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// static en_result_t LvdEnable(en_lvd_type_t enType, boolean_t bFlag);
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/******************************************************************************
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* Local variable definitions ('static')
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******************************************************************************/
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/*****************************************************************************
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* Function implementation - global ('extern') and local ('static')
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*****************************************************************************/
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/**
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* \brief
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* 使能LVD中断
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*
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* \param [in] enType LVD中断类型
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*
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* \retval en_result_t Ok: 设置成功
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* \retval en_result_t ErrorInvalidParameter: 无效类型
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*/
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void Lvd_EnableIrq(void)
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{
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M0P_LVD->CR_f.IE = TRUE;
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}
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/**
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* \brief
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* 除能LVD中断
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*
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* \param 无
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*
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* \retval 无
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*/
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void Lvd_DisableIrq(void)
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{
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M0P_LVD->CR_f.IE = FALSE;
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}
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/**
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* \brief
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* LVD初始化
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*
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* \param [in] pstcCfg LVD配置指针
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*
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* \retval 无
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*/
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void Lvd_Init(stc_lvd_cfg_t *pstcCfg)
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{
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M0P_LVD->CR = 0;
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M0P_LVD->CR = (uint32_t)pstcCfg->enAct |
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(uint32_t)pstcCfg->enFilter |
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(uint32_t)pstcCfg->enFilterTime |
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(uint32_t)pstcCfg->enInputSrc |
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(uint32_t)pstcCfg->enIrqType |
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(uint32_t)pstcCfg->enThreshold;
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}
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/**
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* \brief
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* 使能LVD
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*
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* \param 无
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*
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* \retval 无
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*
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*/
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void Lvd_Enable(void)
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{
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M0P_LVD->CR_f.LVDEN = 1u;
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}
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/**
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* \brief
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* 除能LVD
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*
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* \param 无
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*
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* \retval 无
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*/
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void Lvd_Disable(void)
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{
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M0P_LVD->CR_f.LVDEN = 0u;
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}
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/**
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* \brief
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* 获取LVD中断标志
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*
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* \param 无
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*
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* \retval boolean_t 中断标志
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*/
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boolean_t Lvd_GetIrqStat(void)
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{
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return M0P_LVD->IFR_f.INTF;
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}
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/**
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* \brief
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* 清除LVD中断标志
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*
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* \param 无
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*
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* \retval 无
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*/
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void Lvd_ClearIrq(void)
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{
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M0P_LVD->IFR_f.INTF = 0u;
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}
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/**
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* \brief
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* 获取Filter结果
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*
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* \param 无
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*
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* \retval boolean_t Fliter结果
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*/
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boolean_t Lvd_GetFilterResult(void)
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{
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return (boolean_t)M0P_LVD->IFR_f.FILTER;
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}
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//@} // LvdGroup
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/******************************************************************************
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* EOF (not truncated)
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******************************************************************************/
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