I2C Code with STM32F10x(Sensor ID:0x58)

Sensor_0x58.H

/**

  ******************************************************************************

  * @file    Sensor_0x58.h

  * @brief   Generic driver for sensors with I2C address 0x58

  * @version V2.0

  * @date    2025-07-19

  * @note    Supports all Sencoch sensors with I2C address 0x58

  *          Based on STM32F10x Standard Peripheral Library

  ******************************************************************************

  */

#ifndef __SENSOR_0X58_H

#define __SENSOR_0X58_H

#포함 "myiic.h"

#포함 "main.h"

/*============================================================================*/

/*                        Sensor I2C Configuration */

/*============================================================================*/

#define SENSOR_I2C_ADDR0x58        /* Sensor I2C device address */

#define SENSOR_REG_DATA0x04        /* Data register start address */

#define SENSOR_REG_EOF0x20        /* Temperature offset register */

#define SENSOR_REG_SHIFT0x21        /* Temperature gain register */

/*============================================================================*/

/*                        Sensor Parameters */

/*============================================================================*/

/*

 * 노트: Modify PMIN and PMAX according to your specific sensor model

 * 

 * Common Ranges for I2C ADD 0x58 Sensors (unit: Pa):

 *   0 ~ 0.5kPa:     PMIN = 0.0f,       PMAX = 500.0f

 *   0 ~ 5kPa:       PMIN = 0.0f,       PMAX = 5000.0f

 *   0 ~ 1000kPa:    PMIN = 0.0f,       PMAX = 1000000.0f

 *   -1 ~ 1kPa:      PMIN = -1000.0f,   PMAX = 1000.0f

 *   -5 ~ 5kPa:      PMIN = -5000.0f,   PMAX = 5000.0f

 *   -100 ~ 100kPa:  PMIN = -100000.0f, PMAX = 100000.0f

 */

#define PMIN-100000.0f      /* Lower limit: -100 kPa */

#define PMAX100000.0f       /* Upper limit: 100 kPa */

/*============================================================================*/

/*                         Data Structure */

/*============================================================================*/

typedef struct {

    uint8_t pressure_data[5];           /* Raw I2C data buffer */

    int32_t pressure_AD;                /* 24-bit pressure ADC value */

    int16_t temperature_AD;             /* 16-bit temperature ADC value */

    uint8_t temp_calib_offset_code;     /* Register 0x20 value */

    uint8_t temp_calib_gain_exp;        /* Register 0x21 value */

    int16_t eof_out;                    /* Calculated EOFOut */

    뜨다 shift_n;                      /* Calculated shiftN */

    뜨다 압력;                     /* Pressure in Pa */

    뜨다 온도;                  /* Temperature in ℃ */

} SensorData;

/*============================================================================*/

/*                         Function Prototypes */

/*============================================================================*/

무효의 Sensor_Init(무효의);

uint8_t Sensor_ReadData(SensorData*sensor_data);

#endif /* __SENSOR_0X58_H */

Sensor_0x58.C

/**

  ******************************************************************************

  * @file    Sensor_0x58.c

  * @brief   Generic driver implementation for sensors with I2C address 0x58

  * @version V2.0

  * @date    2025-07-19

  * @note    Supports all Sencoch sensors with I2C address 0x58

  *          Based on STM32F10x Standard Peripheral Library

  ******************************************************************************

  */

#포함 "Sensor_0x58.h"

#포함 "usart.h"

#포함 <math.h>

/*============================================================================*/

/*                         Private Functions */

/*============================================================================*/

/**

  * @brief  Read temperature calibration coefficients from sensor

  * @param  sensor_data: Pointer to SensorData structure

  * @retval SUCCESS or FAILED

  */

static uint8_t Sensor_ReadCalibration(SensorData*sensor_data)

{

    sensor_data->temp_calib_offset_code= i2c_read(SENSOR_I2C_ADDR, SENSOR_REG_EOF);

    sensor_data->temp_calib_gain_exp= i2c_read(SENSOR_I2C_ADDR, SENSOR_REG_SHIFT);

    만약 (sensor_data->temp_calib_offset_code== FAILED||

        sensor_data->temp_calib_gain_exp== FAILED) {

        반품 FAILED;

    }

    switch (sensor_data->temp_calib_offset_code) {

        case 0x0C:  sensor_data->eof_out= 4096;   break;

        case 0x8C:  sensor_data->eof_out= -4096;  break;

        case 0x0D:  sensor_data->eof_out= 8192;   break;

        case 0x8D:  sensor_data->eof_out= -8192;  break;

        case 0x0E:  sensor_data->eof_out= 16384;  break;

        case 0x8E:  sensor_data->eof_out= -16384; break;

        default:    sensor_data->eof_out= 0;       break;

    }

    sensor_data->shift_n= pow(2, sensor_data->temp_calib_gain_exp/ 10.0f);

    반품 SUCCESS;

}

/**

  * @brief  Convert raw 24-bit pressure data to physical value

  * @param  raw: 24-bit raw pressure data (sign-extended to int32_t)

  * @retval Pressure value in Pa

  */

static 뜨다 Sensor_ConvertPressure(int32_t raw)

{

    const int32_t TWO_POW_21= 2097152;

    반품 ((뜨다)raw/ TWO_POW_21) * (PMAX- PMIN);

}

/**

  * @brief  Convert raw 16-bit temperature data to physical value

  * @param  raw: 16-bit raw temperature data

  * @param  eof_out: EOFOut calibration coefficient

  * @param  shift_n: shiftN calibration coefficient

  * @retval Temperature value in ℃

  */

static 뜨다 Sensor_ConvertTemperature(int16_t raw, int16_t eof_out, 뜨다 shift_n)

{

    반품 ((뜨다)(raw- eof_out) / shift_n) + 25.0f;

}

/*============================================================================*/

/*                         Public Functions */

/*============================================================================*/

무효의 Sensor_Init(무효의)

{

    /* I2C pins are initialized by IIC_Init() in main */

}

/**

  * @brief  Read pressure and temperature data from sensor

  * @param  sensor_data: Pointer to SensorData structure

  * @retval SUCCESS or FAILED

  */

uint8_t Sensor_ReadData(SensorData*sensor_data)

{

    int32_t pressure_raw;

    int16_t temp_raw;

    uint8_t result;

    result= IIC_Read_nByte(SENSOR_I2C_ADDR, SENSOR_REG_DATA, 5, sensor_data->pressure_data);

    만약 (result!= SUCCESS) {

        반품 FAILED;

    }

    /* Combine 24-bit pressure data with sign extension */

    pressure_raw= ((int32_t)sensor_data->pressure_data[0] << 16) |

                   ((int32_t)sensor_data->pressure_data[1] << 8)  |

                   (int32_t)sensor_data->pressure_data[2];

    /* Sign extension: if bit 23 (0x800000) is set, extend to 32-bit */

    만약 (pressure_raw& 0x800000) {

        pressure_raw|= 0xFF000000;

    }

    /* Combine 16-bit temperature data (signed) */

    temp_raw= ((int16_t)sensor_data->pressure_data[3] << 8) |

               (int16_t)sensor_data->pressure_data[4];

    sensor_data->pressure_AD= pressure_raw;

    sensor_data->temperature_AD= temp_raw;

    result= Sensor_ReadCalibration(sensor_data);

    만약 (result!= SUCCESS) {

        반품 FAILED;

    }

    sensor_data->압력= Sensor_ConvertPressure(pressure_raw);

    sensor_data->온도= Sensor_ConvertTemperature(temp_raw,

                                                          sensor_data->eof_out,

                                                          sensor_data->shift_n);

#만약 DEBUG

    printf("\r\n--- Sensor Data ---\r\n");

    printf("Raw bytes: %02X %02X %02X %02X %02X\r\n",

           sensor_data->pressure_data[0],

           sensor_data->pressure_data[1],

           sensor_data->pressure_data[2],

           sensor_data->pressure_data[3],

           sensor_data->pressure_data[4]);

    printf("Pressure_AD: %ld (0엑스%08lX)\r\n", pressure_raw, pressure_raw);

    printf("Temperature_AD: %디 (0엑스%04X)\r\n", temp_raw, temp_raw);

    printf("EOFOut: %디, shiftN: %.2f\r\n", sensor_data->eof_out, sensor_data->shift_n);

    printf("Pressure: %.2f Pa, 온도: %.2f 씨\r\n",

           sensor_data->압력, sensor_data->온도);

#endif

    반품 SUCCESS;

}