#ifndef __SWM341_ADC_H__ #define __SWM341_ADC_H__ typedef struct { uint8_t clk_src; //ADC转换时钟源:ADC_CLKSRC_HRC、ADC_CLKSRC_XTAL、... uint8_t samplAvg; //采样取平均,触发启动ADC转换后,ADC在一个通道上连续采样、转换多次,并将它们的平均值作为该通道转换结果 uint8_t EOC_IEn; //EOC中断使能, 可针对每个序列设置,其有效值为ADC_SEQ0、ADC_SEQ1、ADC_SEQ2、ADC_SEQ3及其组合(即“按位或”运算) uint8_t HalfIEn; //FIFO半满中断使能,可针对每个序列设置,其有效值为ADC_SEQ0、ADC_SEQ1、ADC_SEQ2、ADC_SEQ3及其组合(即“按位或”运算) } ADC_InitStructure; typedef struct { uint16_t channels; //ADC序列转换通道选中,ADC_CH0、ADC_CH1、... ... 、ADC_CH7及其组合(即“按位或”运算) uint8_t trig_src; //ADC序列触发方式:ADC_TRIGGER_SW、ADC_TRIGGER_TIMER2、ADC_TRIGGER_TIMER3、... ... uint16_t conv_cnt; //ADC序列转换次数,可取值1--256 uint8_t samp_tim; //ADC序列采样时间,可取值ADC_SAMPLE_1CLOCK、ADC_SAMPLE_2CLOCK、ADC_SAMPLE_4CLOCK、ADC_SAMPLE_8CLOCK } ADC_SEQ_InitStructure; typedef struct { uint16_t UpperLimit; //比较上限值 uint16_t UpperLimitIEn; //ADC转换结果大于UpperLimit中断使能 uint16_t LowerLimit; //比较下限值 uint16_t LowerLimitIEn; //ADC转换结果小于LowerLimit中断使能 } ADC_CMP_InitStructure; #define ADC_CH0 0x001 #define ADC_CH1 0x002 #define ADC_CH2 0x004 #define ADC_CH3 0x008 #define ADC_CH4 0x010 #define ADC_CH5 0x020 #define ADC_CH6 0x040 #define ADC_CH7 0x080 #define ADC_CH8 0x100 #define ADC_CH9 0x200 #define ADC_CH10 0x400 #define ADC_CH11 0x800 #define ADC_SEQ0 0x1 #define ADC_SEQ1 0x2 #define ADC_SEQ2 0x4 #define ADC_SEQ3 0x8 #define ADC_CLKSRC_HRC ((0 << 2) | 0) #define ADC_CLKSRC_XTAL ((0 << 2) | 1) #define ADC_CLKSRC_PLL ((0 << 2) | 2) #define ADC_CLKSRC_HRC_DIV4 ((2 << 2) | 0) #define ADC_CLKSRC_XTAL_DIV4 ((2 << 2) | 1) #define ADC_CLKSRC_PLL_DIV4 ((2 << 2) | 2) #define ADC_CLKSRC_HRC_DIV8 ((3 << 2) | 0) #define ADC_CLKSRC_XTAL_DIV8 ((3 << 2) | 1) #define ADC_CLKSRC_PLL_DIV8 ((3 << 2) | 2) #define ADC_AVG_SAMPLE1 0 #define ADC_AVG_SAMPLE2 1 //一次启动连续采样、转换2次,并计算两次结果的平均值作为转换结果 #define ADC_AVG_SAMPLE4 2 #define ADC_AVG_SAMPLE8 3 #define ADC_TRIGGER_NO 0 #define ADC_TRIGGER_SW 1 //软件启动 #define ADC_TRIGGER_TIMER2 2 #define ADC_TRIGGER_TIMER3 3 #define ADC_TRIGGER_EXTRIG0 4 #define ADC_TRIGGER_EXTRIG1 5 #define ADC_TRIGGER_PWM0 0x10 #define ADC_TRIGGER_PWM1 0x11 #define ADC_TRIGGER_PWM2 0x12 #define ADC_TRIGGER_PWM3 0x13 #define ADC_TRIGGER_PWM4 0x14 #define ADC_SAMPLE_1CLOCK 0 #define ADC_SAMPLE_2CLOCK 1 #define ADC_SAMPLE_4CLOCK 2 #define ADC_SAMPLE_8CLOCK 3 #define ADC_SAMPLE_16CLOCK 4 #define ADC_SAMPLE_32CLOCK 5 #define ADC_SAMPLE_64CLOCK 6 #define ADC_SAMPLE_128CLOCK 7 /* Interrupt Type */ #define ADC_IT_EOC (1 << 0) //End Of Conversion #define ADC_IT_FIFO_OVF (1 << 1) //FIFO Overflow #define ADC_IT_FIFO_HALF (1 << 2) //FIFO Half Full #define ADC_IT_FIFO_FULL (1 << 3) //FIFO Full #define ADC_IT_CMP_MAX (1 << 4) //转换结果大于COMP.MAX #define ADC_IT_CMP_MIN (1 << 5) //转换结果小于COMP.MIN void ADC_Init(ADC_TypeDef * ADCx, ADC_InitStructure * initStruct); //ADC模数转换器初始化 void ADC_SEQ_Init(ADC_TypeDef * ADCx, uint32_t seq, ADC_SEQ_InitStructure * initStruct); //ADC序列初始化 void ADC_CMP_Init(ADC_TypeDef * ADCx, uint32_t seq, ADC_CMP_InitStructure * initStruct); //ADC比较功能初始化 void ADC_Open(ADC_TypeDef * ADCx); //ADC开启,可以软件启动、或硬件触发ADC转换 void ADC_Calibrate(ADC_TypeDef * ADCx); //ADC校准 void ADC_Close(ADC_TypeDef * ADCx); //ADC关闭,无法软件启动、或硬件触发ADC转换 void ADC_Start(ADC_TypeDef * ADCx, uint32_t seq); //启动指定ADC,开始模数转换 void ADC_Stop(ADC_TypeDef * ADCx, uint32_t seq); //关闭指定ADC,停止模数转换 uint32_t ADC_Read(ADC_TypeDef * ADCx, uint32_t seq, uint32_t *chn); //从指定通道读取转换结果 uint32_t ADC_DataAvailable(ADC_TypeDef * ADCx, uint32_t seq); //指定序列是否有数据可读取 void ADC_INTEn(ADC_TypeDef * ADCx, uint32_t seq, uint32_t it); void ADC_INTEn(ADC_TypeDef * ADCx, uint32_t seq, uint32_t it); void ADC_INTClr(ADC_TypeDef * ADCx, uint32_t seq, uint32_t it); uint32_t ADC_INTStat(ADC_TypeDef * ADCx, uint32_t seq, uint32_t it); #endif //__SWM341_ADC_H__