#ifndef __ADS1115_H__
#define __ADS1115_H__

#include "stm32f4xx.h"
#include <stdint.h>
#include "bsp/i2c.h"  // 包含硬件I2C头文件

#define ADS1115

#ifdef ADS1115

// 添加缺失的类型定义
#ifndef u8
typedef uint8_t u8;
#endif

#ifndef u16
typedef uint16_t u16;
#endif

#define ADS1115_SCL_PORT        'A'
#define ADS1115_SCL_PIN         6

#define ADS1115_SDA_PORT        'A'
#define ADS1115_SDA_PIN         5

#define Accuracy                32768       //ADC单端输入15位精度
#define ADS1115_ADDRESS_0       0x90        //ADDR PIN ->GND
#define ADS1115_ADDRESS_1       0x92        //ADDR PIN ->VDD
#define ADS1115_ADDRESS_2       0x94        //ADDR PIN ->SDA
#define ADS1115_ADDRESS_3       0x96        //ADDR PIN ->SCL

//*************ADDR Initial********************/
#define ADS1115_ADDR_BASE       0x48  										// 7-bit base address (ADDR=GND)
#define ADS1115_ADDRESS         (ADS1115_ADDR_BASE << 1)  //ADDR PIN ->GND  0x90
#define ADS1115_ADDRESS_W       (ADS1115_ADDRESS|0x00)    //write address
#define ADS1115_ADDRESS_R       (ADS1115_ADDRESS|0x01)    //read address

/************POINTER REGISTER*****************/
#define ADS1115_Pointer_ConverReg   0x00        //Convertion register
#define ADS1115_Pointer_ConfigReg   0x01        //Config register
#define ADS1115_Pointer_LoThreshReg 0x02        //Lo_thresh register
#define ADS1115_Pointer_HiThreshReg 0x03        //Hi_thresh register

/************CONFIG REGISTER*****************/

//Bit[15]
#define ADS1115_OS_OperationalStatus    0x0000                //No Effect
#define ADS1115_OS_SingleConverStart    0x8000                //Begin a single conversion
//Bits[14:12]
#define ADS1115_MUX_Differ_01           0x0000                //AINp=AIN0, AINn=AIN1(default)
#define ADS1115_MUX_Differ_03           0x1000                //AINp=AIN0, AINn=AIN3
#define ADS1115_MUX_Differ_13           0x2000                //AINp=AIN1, AINn=AIN3
#define ADS1115_MUX_Differ_23           0x3000                //AINp=AIN2, AINn=AIN3
#define ADS1115_MUX_Channel_0           0x4000                //AINp=AIN0, AINn=GND
#define ADS1115_MUX_Channel_1           0x5000                //AINp=AIN1, AINn=GND
#define ADS1115_MUX_Channel_2           0x6000                //AINp=AIN2, AINn=GND
#define ADS1115_MUX_Channel_3           0x7000                //AINp=AIN3, AINn=GND
//Bits[11:9]
#define ADS1115_PGA_6144                0x0000                //FS=6.144V
#define ADS1115_PGA_4096                0x0200                //FS=4.096V
#define ADS1115_PGA_2048                0x0400                //FS=2.048V(default)
#define ADS1115_PGA_1024                0x0600                //FS=1.024V
#define ADS1115_PGA_0512                0x0800                //FS=0.512V
#define ADS1115_PGA_0256                0x0A00                //FS=0.256V
//Bit[8]
#define ADS1115_MODE_ContinuConver      0x0000                //Continuous conversion mode
#define ADS1115_MODE_SingleConver       0x0100                //Power-down single-shot mode(default)
//Bits[7:5]
#define ADS1115_DataRate_8              0x0000                //Data Rate = 8
#define ADS1115_DataRate_16             0x0020                //Data Rate = 16
#define ADS1115_DataRate_32             0x0040                //Data Rate = 32
#define ADS1115_DataRate_64             0x0060                //Data Rate = 64
#define ADS1115_DataRate_128            0x0080                //Data Rate = 128(default)
#define ADS1115_DataRate_250            0x00A0                //Data Rate = 250
#define ADS1115_DataRate_475            0x00C0                //Data Rate = 475
#define ADS1115_DataRate_860            0x00E0                //Data Rate = 860
//Bit[4]
#define ADS1115_COMP_MODE_0             0x0000                //Traditional comparator with hysteresis
#define ADS1115_COMP_MODE_1             0x0010                //Window comparator
//Bit[3]
#define ADS1115_COMP_POL_0              0x0000                //Active low
#define ADS1115_COMP_POL_1              0x0008                //Active high
//Bit[2]
#define ADS1115_COMP_LAT_0              0x0000                //Non-latching comparator
#define ADS1115_COMP_LAT_1              0x0004                //Latching comparator
//Bits[1:0]
#define ADS1115_COMP_QUE_0              0x0000                //Assert after one conversion
#define ADS1115_COMP_QUE_1              0x0001                //Assert after two conversion
#define ADS1115_COMP_QUE_2              0x0002                //Assert after four conversion
#define ADS1115_COMP_QUE_3              0x0003                //Disable Comparator

// 添加缺失的宏定义
#define ADS1115_MAX_CHANNEL     4

typedef struct
{
    u16 OS;
    u16 MUX;
    u16 PGA;
    u16 MODE;
    u16 DataRate;
    u16 COMP_MODE;
    u16 COMP_POL;
    u16 COMP_LAT;
    u16 COMP_QUE;
} ADS1115_InitTypeDefine;

extern int16_t ADS1115_RawData[4];

void ADS1115_Init(void);
void ADS1115_UserConfig_Single(void);
void ADS1115_UserConfig_Continue(void);
u8 ADS1115_Config(ADS1115_InitTypeDefine* ADS1115_InitStruct);

u8 ADS1115_ReadRawData(int16_t* rawData);
void ADS1115_ScanChannel(uint8_t channel);
float ADS1115_RawDataToVoltage(int16_t rawData);

float ADS1115_GetVoltage(void);
float ADS1115_GetAverageVoltage(uint16_t num);

void ADS1115_RefreshAllChannel(void);

#endif
#endif