170 lines
4.2 KiB
C
170 lines
4.2 KiB
C
/**************************************************************************!
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* 技术讨论：QQ群 123763203
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* 官网 ：www.navota.com
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*
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* @file acmp.c
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* @brief 模拟比较器(ACMP)函数库
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* @author Navota
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* @date 2018-3-1
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****************************************************************************/
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#include "common.h"
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#include "acmp.h"
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/****************************************************************************!
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* @ 存放ACMP回调函数接口
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****************************************************************************/
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ACMP_CallbackPtr ACMP_Callback[2] = {(ACMP_CallbackPtr)NULL};
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/**************************************************************************/
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void ACMP0_Isr(void);
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void ACMP1_Isr(void);
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/*****************************************************************************//*!
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*
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* @brief 初始化ACMP模块
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*
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* @param pACMPx 指向ACMP寄存器基址
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* @param pConfig 控制参数
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*
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* @return none.
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*
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* @see ACMP_DeInit.
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*
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*****************************************************************************/
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void ACMP_Init(ACMP_Type *pACMPx, ACMP_ConfigType *pConfig)
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{
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if(ACMP0 == pACMPx)
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{
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/* 使能ACMP模块的总线时钟 */
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SIM->SCGC |= SIM_SCGC_ACMP0_MASK;
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/* 使能ACMP中断 */
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if(pConfig->sCtrlStatus.bits.bIntEn)
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NVIC_EnableIRQ(ACMP0_IRQn);
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}
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else
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{
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SIM->SCGC |= SIM_SCGC_ACMP1_MASK;
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if(pConfig->sCtrlStatus.bits.bIntEn)
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NVIC_EnableIRQ(ACMP1_IRQn);
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}
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/*选择ACMP正输入和负输入，正输入和负输入引脚不同*/
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pACMPx->C0 = pConfig->sPinSelect.byte;
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ACMP_ConfigDAC(pACMPx, &pConfig->sDacSet );
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//pACMPx->C1 = pConfig->sDacSet.byte;
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pACMPx->C2 = pConfig->sPinEnable.byte;
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pACMPx->CS = pConfig->sCtrlStatus.byte;
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}
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/*****************************************************************************//*!
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*
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* @brief 配置ACMP控制寄存器1.
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*
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* @param pACMPx 指向ACMP模块寄存器基地址
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* @param pDACConfig 指向 ACMP DAC 控制结构体.
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*
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* @return none.
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*
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*****************************************************************************/
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void ACMP_ConfigDAC(ACMP_Type *pACMPx, ACMP_DACType *pDACConfig)
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{
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pACMPx->C1 = pDACConfig->byte;
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}
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/*****************************************************************************//*!
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*
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* @brief 复位ACMP模块.
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*
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* @param pACMPx 指向ACMP模块寄存器基地址
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*
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* @return none.
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*
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* @see ACMP_Init.
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*
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*****************************************************************************/
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void ACMP_DeInit(ACMP_Type *pACMPx)
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{
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if(ACMP0 == pACMPx)
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{
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if(pACMPx->CS & ACMP_CS_ACIE_MASK)
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NVIC_DisableIRQ(ACMP0_IRQn);
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}
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else
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{
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if(pACMPx->CS & ACMP_CS_ACIE_MASK)
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NVIC_DisableIRQ(ACMP1_IRQn);
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}
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pACMPx->CS = 0;
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pACMPx->C0 = 0;
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pACMPx->C1 = 0;
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pACMPx->C2 = 0;
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if(ACMP0 == pACMPx)
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{
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SIM->SCGC &= ~SIM_SCGC_ACMP0_MASK;
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}
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else
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{
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SIM->SCGC &= ~SIM_SCGC_ACMP1_MASK;
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}
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}
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/*****************************************************************************//*!
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*
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* @brief 设置ACMP回调函数，通过中断服务函数调用回调函数.
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*
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* @param pACMPx 指向ACMP模块寄存器基地址.
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* @param pfnCallback 回调函数.
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*
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* @return none.
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*
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*
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*****************************************************************************/
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void ACMP_SetCallback(ACMP_Type *pACMPx, ACMP_CallbackPtr pfnCallback)
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{
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if(ACMP0 == pACMPx)
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{
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ACMP_Callback[0] = pfnCallback;
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}
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else
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{
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ACMP_Callback[1] = pfnCallback;
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}
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}
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/*****************************************************************************//*!
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*
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* @brief ACMP0 中断服务函数.
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*
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* @param none.
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*
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* @return none.
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*
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*****************************************************************************/
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void ACMP0_Isr(void)
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{
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if(ACMP_Callback[0])
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{
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ACMP_Callback[0](); /*调用回调函数*/
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}
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}
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/*****************************************************************************//*!
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*
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* @brief ACMP1 中断服务函数
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*
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* @param none.
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*
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* @return none.
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*
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*****************************************************************************/
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void ACMP1_Isr(void)
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{
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if(ACMP_Callback[1])
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{
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ACMP_Callback[1](); /* 调用回调函数*/
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}
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}
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