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313 lines
9.2 KiB
313 lines
9.2 KiB
/*********************************************************
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*Copyright (C), 2015, Shanghai Eastsoft Microelectronics Co., Ltd.
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*文件名: lib_adc.c
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*作 者: AE Team
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*版 本: V1.01
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*日 期: 2021/06/09
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*描 述: ADC模块库函数
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*备 注:
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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：ADC功能初始化函数
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输入值：ADC_InitStruct 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_Init(ADC_InitStruType *ADC_InitStruct)
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{
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if (ADC_InitStruct->CLKS > ADC_CLKS_MAX
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|| ADC_InitStruct->CLKDIV > ADC_CLKDIV_MAX
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|| ADC_InitStruct->VREF_SEL > ADC_VREF_SEL_MAX
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|| ADC_InitStruct->VREFP > ADC_VREFP_MAX
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|| ADC_InitStruct->VREFN > ADC_VREFN_MAX
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|| ADC_InitStruct->CHS > ADC_CHS_MAX
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|| ADC_InitStruct->SMPS > ADC_SMPS_MAX
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|| ADC_InitStruct->ST > ADC_ST_MAX
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|| ADC_InitStruct->BITSEL > ADC_BITSEL_MAX)
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{
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return ERROR;
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}
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ADC_Reset();
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ADC->VREFCON.VREF_EN = ENABLE;
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ADC->VREFCON.IREF_EN = ENABLE;
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ADC->CON1.HSEN = DISABLE;
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ADC->CHS.CHS = ADC_InitStruct->CHS;
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ADC->CON1.CLKS = ADC_InitStruct->CLKS;
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ADC->CON1.CLKDIV = ADC_InitStruct->CLKDIV;
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ADC->CON1.VREFP = ADC_InitStruct->VREFP;
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ADC->CON1.VREFN = ADC_VREFN_VSS;
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ADC->VREFCON.VREF_SEL = ADC_VREF_SEL_0;
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ADC->CON1.SMPS = ADC_InitStruct->SMPS;
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ADC->CON1.ST = ADC_InitStruct->ST;
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ADC->CON0.BIT_SEL = ADC_InitStruct->BITSEL;
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ADC_Enable();
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return SUCCESS;
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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; /* ADCCHS:bit0-4 ADC模拟通道选择 */
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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_ACP_Enable();
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}
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else
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{
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ADC_ACP_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_Start
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描 述：ADC 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_Start(void)
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{
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if (ADC->CON1.SMPS == ADC_SMPS_SOFT)
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{
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return ERROR;
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}
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ADC->CON0.Word |= ADC_TRIG_MASK; /* 40001004 BIT1*/
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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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{
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return ERROR;
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}
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ADC ->CON1.SMPON = SET;/* 40001008 BIT13*/
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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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{
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return ERROR;
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}
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ADC ->CON1.SMPON = RESET;/* 40001008 BIT13*/
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return SUCCESS;
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}
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/***************************************************************
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函数名：ADC_GetConvValue
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描 述：ADC 获得采样数据函数
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输入值：无
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输出值：无
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返回值：采样数据
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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); /* 40001000 BIT15-0*/
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}
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/***************************************************************
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函数名：ADC_GetConvStatus
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描 述：ADC 获得此时状态
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输入值：无
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输出值：无
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返回值：SET 正在进行转换
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RESET 未进行转换或者转换完成
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***************************************************************/
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FlagStatus ADC_GetConvStatus(void)
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{
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if (ADC->CON0.Word & (ADC_TRIG_MASK)) /* BIT1*/
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{
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return RESET;
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}
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return SET;
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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_GetIFStatus
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描 述：ADC 获得特定类型中断情况
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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：中断标志与否
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***************************************************************/
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ITStatus ADC_GetIFStatus(ADC_TYPE_IF IFName)
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{
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if (ADC->IF.Word & IFName)
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{
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return SET;
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}
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return RESET;
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}
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/***************************************************************
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函数名：ADC_GetIEStatus
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描 述：ADC 获得特定类型中断情况
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输入值：IEName 中断类型选择
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ADC_IE ADC中断
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ADC_IE_ACPMIN 自动转换低阀值超出中断
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ADC_IE_ACPMAX 自动转换高阀值超出中断
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ADC_IE_ACPOVER自动转换溢出中断
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输出值：无
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返回值：中断使能与否
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***************************************************************/
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ITStatus ADC_GetIEStatus(ADC_TYPE_IE IEName)
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{
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if (ADC->IE.Word & IEName)
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{
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return SET;
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}
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return RESET;
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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 = 0x00000000;
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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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