302 lines
8.6 KiB
C
302 lines
8.6 KiB
C
/***************************************************************
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*Copyright (C), 2017, Shanghai Eastsoft Microelectronics Co., Ltd
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*文件名： lib_timer.c
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*作 者： Liut
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*版 本： V1.00
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*日 期： 2017/07/14
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*描 述： ADC模块库函数
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*备 注： 适用于 ES8P508x芯片
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本软件仅供学习和演示使用，对用户直接引用代码所带来的风险或后果不承担任何法律责任。
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***************************************************************/
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#include "lib_adc.h"
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/***************************************************************
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函数名：ADC_Init
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描 述：初始化ADC模块
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输入值：初始化配置结构体地址
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输出值：无
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返回值：无
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***************************************************************/
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void ADC_Init(ADC_InitStruType * ADC_InitStruct)
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{
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ADC->VREFCON.VREF_EN = ENABLE; //内部VREFP使能
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ADC->VREFCON.IREF_EN = ENABLE; //IREF使能位
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ADC->CON1.VCMBUF_EN = ENABLE; //ADC共模电压VCM BUF使能
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ADC ->CON1.VCMBUF_HS = ENABLE; //ADC共模电压VCM BUF高速模式使能
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ADC->CON1.HSEN = ENABLE; //ADC转换速度：高速
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ADC->CHS.VDD5_FLAG_EN = DISABLE; //屏蔽VDD检测控制
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ADC->CON1.CLKS = ADC_InitStruct->ADC_ClkS; //ADCCON1:bit3 ADC时钟源选择
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ADC->CON1.CLKDIV = ADC_InitStruct->ADC_ClkDiv; //ADCCON1:bit2-0 ADC时钟源预分频
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ADC->CON1.VREFP = ADC_InitStruct->ADC_VrefP; //ADCCON1:bit9-8 ADC正向参考电压选择
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ADC->CON1.SMPS = ADC_InitStruct->ADC_SampS; //ADCCON1:bit12 ADC采样模式选择
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ADC->CHS.CHS = ADC_InitStruct->ADC_ChS; //ADCCHS:bit0-3 ADC模拟通道选择
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ADC->CON1.ST = ADC_InitStruct->ST; //ADCCON1:bit20-16 ADC采样时间选择 ST*2+1个Tadclk
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//ADC->VREFCON.VREF_SEL=ADC_InitStruct->VREF_SEL;//内部参考电压选择
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ADC->CON1.VREFN = ADC_InitStruct->ADC_VREFN; //负向参考电压使能位
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ADC->CON1.VRBUF_EN = ADC_InitStruct->ADC_VRBUF_EN; //VREF BUF使能位
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}
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/***************************************************************
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函数名：ADC_Set_CH
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描 述：选择ADC模拟通道
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输入值：通道
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输出值：无
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返回值：无
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***************************************************************/
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void ADC_Set_CH(ADC_TYPE_CHS AdcCH)
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{
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ADC->CHS.CHS = AdcCH;
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}
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/***************************************************************
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函数名：ADC_GetConvValue
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描 述：获取ADC转换结果
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输入值：无
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输出值：无
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返回值：转换值
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***************************************************************/
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uint16_t ADC_GetConvValue(void)
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{
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return ((uint16_t)ADC->DR.DR);
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}
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/***************************************************************
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函数名：ADC_GetConvStatus
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描 述：获取ADC转换状态
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输入值：无
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输出值：无
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返回值：RESET(完成)/SET(正在转换)
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***************************************************************/
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FlagStatus ADC_GetConvStatus(void)
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{
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FlagStatus bitstatus = RESET;
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/* 检测转换状态寄存器 */
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if ((ADC->CON0.TRIG != (uint32_t)RESET))
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bitstatus = SET; //正在转换
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else
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bitstatus = RESET; //转换完成
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return bitstatus;
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}
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/***************************************************************
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函数名：ADC_ACPConfig
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描 述：ADC 自动比较功能初始化
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输入值：ADC_ACP_InitStruct 自动比较功能初始化结构体
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输出值：无
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返回值：SUCCESS 成功
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ERROR 失败
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***************************************************************/
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ErrorStatus ADC_ACPConfig(ADC_ACP_TypeDef *ADC_ACP_InitStruct)
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{
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if(ADC_ACP_InitStruct->ACPC_OVER_TIME > ADC_ACPC_OVFL_TIME_MAX
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||ADC_ACP_InitStruct->ACPC_TIMES > ADC_ACPC_TIMES_MAX
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||ADC_ACP_InitStruct->ACPC_MIN_TARGET > ADC_ACP_MIN_MAX
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||ADC_ACP_InitStruct->ACPC_MAX_TARGET > ADC_ACP_MAX_MAX)
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{
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return ERROR;
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}
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if(ADC_ACP_InitStruct->ACP_EN == ENABLE)
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{
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if(ADC->CON1.CLKS == ADC_ClkS_PCLK)
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{
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ADC->ACPC.CLKS = ADC_ACPC_CLKS_PCLK;
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}
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else
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{
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ADC->ACPC.CLKS = ADC_ACPC_CLKS_LRC;
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}
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ADC->ACPC.OVFL_TIME = ADC_ACP_InitStruct ->ACPC_OVER_TIME;
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ADC->ACPC.TIMES = ADC_ACP_InitStruct->ACPC_TIMES;
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ADC->IE.ACPOVIE = ENABLE;
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/* 假设用户将高阀值设置成0(最小值)，我们可以认为其想关闭该功能 */
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if(ADC_ACP_InitStruct ->ACPC_MAX_TARGET ==0x0)
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{
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ADC->IE.ACPMAXIE = DISABLE;
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}
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else
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{
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ADC->ACPCMP.CMP_MAX =ADC_ACP_InitStruct ->ACPC_MAX_TARGET;
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ADC->IE.ACPMAXIE = ENABLE;
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}
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/* 假设用户将低阀值设置成0xfff(最大值)，我们可以认为其想关闭该功能 */
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if(ADC_ACP_InitStruct ->ACPC_MIN_TARGET == 0xfff)
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{
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ADC->IE.ACPMINIE = DISABLE;
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}
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else
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{
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ADC->ACPCMP.CMP_MIN =ADC_ACP_InitStruct ->ACPC_MIN_TARGET;
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ADC->IE.ACPMINIE = ENABLE;
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}
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ADC->CON0.ACP_EN = ENABLE;
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}
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else
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{
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ADC->CON0.ACP_EN = DISABLE;
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}
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return SUCCESS;
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}
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/***************************************************************
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函数名：ADC_SampStart
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描 述：ADC 采样软件控制-启动函数
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输入值：无
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输出值：无
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返回值：SUCCESS 成功
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ERROR 失败
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***************************************************************/
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ErrorStatus ADC_SoftStart(void)
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{
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if(ADC->CON1.SMPS == ADC_SMPS_HARD)
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return ERROR;
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ADC ->CON1.SMPON = SET;
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return SUCCESS;
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}
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/***************************************************************
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函数名：ADC_SampStop
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描 述：ADC 采样软件控制-停止函数
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输入值：无
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输出值：无
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返回值：SUCCESS 成功
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ERROR 失败
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***************************************************************/
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ErrorStatus ADC_SoftStop(void)
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{
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if(ADC->CON1.SMPS == ADC_SMPS_HARD)
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return ERROR;
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ADC->CON1.SMPON = RESET;
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return SUCCESS;
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}
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/***************************************************************
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函数名：ADC_GetACPMeanValue
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描 述：ADC 获得单次自动比较平均值
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输入值：无
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输出值：无
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返回值：采样数据
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***************************************************************/
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uint16_t ADC_GetACPMeanValue(void)
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{
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return ((uint16_t)ADC->ACPMEAN.MEAN_DATA);
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}
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/***************************************************************
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函数名：ADC_GetACPMINValue
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描 述：ADC 获得单次自动比较平均值
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输入值：无
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输出值：无
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返回值：采样数据
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***************************************************************/
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uint16_t ADC_GetACPMinValue(void)
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{
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return ((uint16_t)ADC->ACPCMP.CMP_MIN);
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}
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/***************************************************************
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函数名：ADC_GetACPMAXValue
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描 述：ADC 获得单次自动比较平均值
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输入值：无
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输出值：无
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返回值：采样数据
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***************************************************************/
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uint16_t ADC_GetACPMaxValue(void)
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{
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return ((uint16_t)ADC->ACPCMP.CMP_MAX);
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}
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/***************************************************************
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函数名：ADC_GetFlagStatus
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描 述：读取ADC标志位状态
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输入值：IFName：ADC中断标志
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输出值：无
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返回值：SET/RESET
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***************************************************************/
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FlagStatus ADC_GetFlagStatus(ADC_TYPE_IF IFName)
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{
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FlagStatus bitstatus = RESET;
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/* 检查中断标志位 */
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if (((ADC->IF.Word & IFName) != (uint32_t)RESET))
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bitstatus = SET; //转换完成
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else
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bitstatus = RESET; //无中断
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return bitstatus;
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}
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/***************************************************************
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函数名：ADC_GetITStatus
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描 述：读取ADC中断状态，未使能相应中断时不会返回SET
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输入值：无
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输出值：无
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返回值：SET（中断）/RESET（无中断）
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***************************************************************/
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ITStatus ADC_GetITStatus(ADC_TYPE_IE IEName)
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{
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ITStatus bitstatus = RESET;
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/* 检查中断标志位 */
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if (((ADC->IE.Word & IEName) != (uint32_t)RESET))
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bitstatus = SET; //转换完成，进中断
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else
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bitstatus = RESET; //无中断
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return bitstatus;
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}
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/***************************************************************
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函数名：ADC_ClearIFStatus
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描 述：ADC 清除特定类型中断
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输入值：IFName 中断类型选择
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ADC_IF ADC中断
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ADC_IF_ACPMIN 自动转换低阀值超出中断
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ADC_IF_ACPMAX 自动转换高阀值超出中断
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ADC_IF_ACPOVER 自动转换溢出中断
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输出值：无
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返回值：SUCCESS 成功
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ERROR 失败
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***************************************************************/
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ErrorStatus ADC_ClearIFStatus(ADC_TYPE_IF IFName)
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{
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ADC->IF.Word = (uint32_t)IFName;
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return SUCCESS;
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}
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/***************************************************************
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函数名：ADC_Reset
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描 述：ADC复位
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输入值：无
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输出值：无
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返回值：无
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***************************************************************/
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void ADC_Reset(void)
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{
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ADC->CON0.Word = 0x00000030;
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ADC->CON1.Word = 0x00041000;
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ADC->CHS.Word = 0x00000100;
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ADC->IE.Word = 0x00000000;
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ADC->IF.Word = 0x00000000;
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ADC->ACPC.Word = 0x00000000;
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ADC->ACPCMP.Word = 0x0FFF0000;
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ADC->VREFCON.Word = 0x00000000;
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}
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/*************************END OF FILE**********************/
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