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/*******************************************************************************
* Copyright (C) 2019, Huada Semiconductor Co.,Ltd All rights reserved.
*
* This software is owned and published by:
* Huada Semiconductor Co.,Ltd ("HDSC").
*
* BY DOWNLOADING, INSTALLING OR USING THIS SOFTWARE, YOU AGREE TO BE BOUND
* BY ALL THE TERMS AND CONDITIONS OF THIS AGREEMENT.
*
* This software contains source code for use with HDSC
* components. This software is licensed by HDSC to be adapted only
* for use in systems utilizing HDSC components. HDSC shall not be
* responsible for misuse or illegal use of this software for devices not
* supported herein. HDSC is providing this software "AS IS" and will
* not be responsible for issues arising from incorrect user implementation
* of the software.
*
* Disclaimer:
* HDSC MAKES NO WARRANTY, EXPRESS OR IMPLIED, ARISING BY LAW OR OTHERWISE,
* REGARDING THE SOFTWARE (INCLUDING ANY ACOOMPANYING WRITTEN MATERIALS),
* ITS PERFORMANCE OR SUITABILITY FOR YOUR INTENDED USE, INCLUDING,
* WITHOUT LIMITATION, THE IMPLIED WARRANTY OF MERCHANTABILITY, THE IMPLIED
* WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR USE, AND THE IMPLIED
* WARRANTY OF NONINFRINGEMENT.
* HDSC SHALL HAVE NO LIABILITY (WHETHER IN CONTRACT, WARRANTY, TORT,
* NEGLIGENCE OR OTHERWISE) FOR ANY DAMAGES WHATSOEVER (INCLUDING, WITHOUT
* LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION,
* LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY LOSS) ARISING FROM USE OR
* INABILITY TO USE THE SOFTWARE, INCLUDING, WITHOUT LIMITATION, ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS OF DATA,
* SAVINGS OR PROFITS,
* EVEN IF Disclaimer HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
* YOU ASSUME ALL RESPONSIBILITIES FOR SELECTION OF THE SOFTWARE TO ACHIEVE YOUR
* INTENDED RESULTS, AND FOR THE INSTALLATION OF, USE OF, AND RESULTS OBTAINED
* FROM, THE SOFTWARE.
*
* This software may be replicated in part or whole for the licensed use,
* with the restriction that this Disclaimer and Copyright notice must be
* included with each copy of this software, whether used in part or whole,
* at all times.
*/
/******************************************************************************/
/** \file pcnt.h
**
** Headerfile for PCNT functions
** @link PCNT Group Some description @endlink
**
** History:
** - 2019-04-08 First Version
**
******************************************************************************/
#ifndef __PCNT_H__
#define __PCNT_H__
/*******************************************************************************
* Include files
******************************************************************************/
#include "ddl.h"
#ifdef __cplusplus
extern "C"
{
#endif
/**
******************************************************************************
** \defgroup PCNTGroup (PCNT)
**
******************************************************************************/
//@{
/**
*******************************************************************************
** function prototypes.
******************************************************************************/
/**
*******************************************************************************
** \brief PCNT S0通道极性选择
** \note PCNT_CTRL S0P
******************************************************************************/
typedef enum
{
PcntS0PNoinvert = 0u, // S0通道极性不取反
PcntS0PInvert = 1u // S0通道极性取反
}en_pcnt_s0polar_t;
/**
*******************************************************************************
** \brief PCNT S1通道极性选择
** \note PCNT_CTRL S1P
******************************************************************************/
typedef enum
{
PcntS1PNoinvert = 0u, // S1通道极性不取反
PcntS1PInvert = 1u // S1通道极性取反
}en_pcnt_s1polar_t;
/**
*******************************************************************************
** \brief PCNT 计数方向选择
** \note PCNT_CTRL DIR
******************************************************************************/
typedef enum
{
PcntNDoubleDirAdd = 0u, // 加计数
PcntNDoubleDirSub = 1u // 减计数
}en_pcnt_dir_t;
/**
*******************************************************************************
** \brief PCNT 计数时钟选择
** \note PCNT_CTRL ClkSel
******************************************************************************/
typedef enum
{
PcntCLKPclk = 1u, // PCLK
PcntCLKXtl = 2u, // XTL
PcntCLKRcl = 3u // RCL
}en_pcnt_clksel_t;
/**
*******************************************************************************
** \brief PCNT 脉冲计数模式选择
** \note PCNT_CTRL Mode
******************************************************************************/
typedef enum
{
PcntSingleMode = 1u, // 单通道脉冲计数模式
PcntSpecialMode = 2u, // 双通道非正交脉冲计数模式
PcntDoubleMode = 3u // 双通道正交脉冲计数模式
}en_pcnt_mode_t;
/**
******************************************************************************
** \brief PCNT 状态
** \note PCNT_IFR & PCNT_ICR & PCNT_IEN
*****************************************************************************/
typedef enum
{
PcntS1E = 7, // S1通道脉冲解码错误
PcntS0E = 6, // S0通道脉冲解码错误
PcntBB = 5, // 脉冲解码错误
PcntFE = 4, // 采样周期脉冲解码错误
PcntDIR = 3, // 反向改变中断
PcntTO = 2, // 超时中断标识
PcntOV = 1, // 上溢中断标识
PcntUF = 0, // 下溢中断标识
}en_pcnt_itfce_t;
/**
******************************************************************************
** \brief PCNT 状态寄存器1 PCNT_SR1
** \note PCNT_SR1 : DIR
*****************************************************************************/
typedef enum
{
PcntDoubleDirAdd = 0, // 双通道正交脉冲加计数
PcntDoubleDirSub = 1 // 双通道正交脉冲加计数
}en_pcnt_sr1dir_t;
/**
******************************************************************************
** \brief PCNT 观测输出选择寄存器 PCNT_DBG
** \note PCNT_DBG: DBG
*****************************************************************************/
typedef enum
{
PcntDBGZero = 0, // 固定为0
PcntDBGSxA = 1, // 脉冲同步之后通过S0A/S1A输出
PcntDBGSxP = 2, // 脉冲极性选择之后通过S0P/S1P输出
PcntDBGSxPF = 3 // 脉冲滤波之后通过S0PF/S1PF输出
}en_pcnt_dbg_t;
typedef enum
{
PcntDirUp = 0, //加计数
PcntDirDown = 1 //减计数
}en_pent_dir_t;
/**
******************************************************************************
** \brief PCNT 整体配置结构体
*****************************************************************************/
typedef struct stc_pcnt_cfg
{
en_pcnt_s0polar_t Pcnt_S0Sel; // S0通道极性选择
en_pcnt_s1polar_t Pcnt_S1Sel; // S1通道极性选择
en_pcnt_clksel_t Pcnt_Clk; // 计数时钟选择
en_pcnt_mode_t Pcnt_Mode; // 脉冲计数模式选择
boolean_t Pcnt_FltEn; // 脉冲宽度滤波器使能控制 PCNT_FLT: EN
uint8_t Pcnt_DebTop; // 计数器阀值 PCNT_FLT: DebTop
uint16_t Pcnt_ClkDiv; // 滤波时钟分频系数 PCNT_FLT: ClkDiv
boolean_t Pcnt_TocrEn; // 超时功能使能控制位 PCNT_TOCR : EN
uint16_t Pcnt_TocrTh; // 超时阈值 PCNT_TOCR : TH
en_pcnt_dbg_t Pcnt_Dbg; // 观测输出选择寄存器 PCNT_DBG
en_pent_dir_t Pcnt_Dir;
}stc_pcnt_initstruct_t;
/******************************************************************************
* Global variable declarations ('extern', definition in C source)
******************************************************************************/
/******************************************************************************
* Global function prototypes (definition in C source)
******************************************************************************/
extern boolean_t Pcnt_Cmd(boolean_t NewState);
extern en_result_t Pcnt_SetB2T(uint16_t value);
extern en_result_t Pcnt_SetB2C(uint16_t value);
extern en_result_t Pcnt_SetT2C(void);
extern void Pcnt_Init(stc_pcnt_initstruct_t* InitStruct);
extern void Pcnt_ItCfg(en_pcnt_itfce_t IT_Src, boolean_t NewState);
extern boolean_t Pcnt_GetItStatus(en_pcnt_itfce_t IT_Src);
extern void Pcnt_ClrItStatus(en_pcnt_itfce_t IT_Src);
extern uint16_t Pcnt_GetCnt(void);
extern uint16_t Pcnt_GetTop(void);
extern uint16_t Pcnt_GetBuf(void);
extern void Pcnt_SetCnt(uint16_t value);
extern void Pcnt_SetBuf(uint16_t value);
extern void Pcnt_SetTop(uint16_t value);
//@} // PCNT Group
#ifdef __cplusplus
#endif
#endif /* __PCNT_H__ */
/*******************************************************************************
* EOF (not truncated)
******************************************************************************/
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