ADS1115 STM32F103C8T6代码

以下是使用STM32F103C8T6控制ADS1115进行模拟转换的基本代码示例：

#include "stm32f10x.h"
#include "delay.h"
#include "i2c.h"

#define ADS1115_ADDR    0x90

#define ADS1115_REG_CONV        0x00
#define ADS1115_REG_CONFIG      0x01
#define ADS1115_REG_LO_THRESH   0x02
#define ADS1115_REG_HI_THRESH   0x03

#define ADS1115_CONFIG_OS_SINGLE     0x8000
#define ADS1115_CONFIG_MUX_DIFF_0_1  0x0000
#define ADS1115_CONFIG_MUX_DIFF_2_3  0x1000
#define ADS1115_CONFIG_MUX_SINGLE_0  0x4000
#define ADS1115_CONFIG_MUX_SINGLE_1  0x5000
#define ADS1115_CONFIG_MUX_SINGLE_2  0x6000
#define ADS1115_CONFIG_MUX_SINGLE_3  0x7000
#define ADS1115_CONFIG_PGA_6_144     0x0000
#define ADS1115_CONFIG_PGA_4_096     0x0200
#define ADS1115_CONFIG_PGA_2_048     0x0400
#define ADS1115_CONFIG_PGA_1_024     0x0600
#define ADS1115_CONFIG_PGA_0_512     0x0800
#define ADS1115_CONFIG_PGA_0_256     0x0A00
#define ADS1115_CONFIG_MODE_SINGLE   0x0100
#define ADS1115_CONFIG_DR_128        0x0000
#define ADS1115_CONFIG_DR_250        0x0020
#define ADS1115_CONFIG_DR_490        0x0040
#define ADS1115_CONFIG_DR_920        0x0060
#define ADS1115_CONFIG_DR_1600       0x0080
#define ADS1115_CONFIG_DR_2400       0x00A0
#define ADS1115_CONFIG_DR_3300       0x00C0
#define ADS1115_CONFIG_CMODE_TRAD    0x0000
#define ADS1115_CONFIG_CPOL_ACTVLOW  0x0000
#define ADS1115_CONFIG_CLAT_NONLAT   0x0000
#define ADS1115_CONFIG_CQUE_NONE     0x0003

void ADS1115_Init(void)
{
    I2C_Configuration();
}

void ADS1115_Convert(uint16_t config)
{
    uint8_t txBuf[3];

    txBuf[0] = ADS1115_REG_CONFIG;
    txBuf[1] = config >> 8;
    txBuf[2] = config & 0xFF;

    I2C_WriteBytes(ADS1115_ADDR, txBuf, 3);

    while (1)
    {
        I2C_ReadByte(ADS1115_ADDR, ADS1115_REG_CONFIG, txBuf);

        if ((txBuf[0] & ADS1115_CONFIG_OS_SINGLE) == 0)
            break;
    }
}

int16_t ADS1115_Read(void)
{
    uint8_t txBuf[2], rxBuf[2];

    txBuf[0] = ADS1115_REG_CONV;

    I2C_WriteBytes(ADS1115_ADDR, txBuf, 1);

    I2C_ReadBytes(ADS1115_ADDR, txBuf, 2, rxBuf);

    return ((int16_t)(rxBuf[0] << 8 | rxBuf[1]));
}

该示例代码需要使用I2C通信，需要先初始化I2C和延时函数。同时，需要先对ADS1115进行配置，然后才能进行模拟转换和读取转换结果。可以根据自己的需求修改配置参数。