河源电厂2026年一期励磁系统改造物资项目(第二次)

# （此处可能是文档相关标题等，因内容为代码或特定格式文本）
```c
/*
 * (C) COPYRIGHT 
 *
 * FILE NAME: 
 *          cgaa_temperature.c
 *
 * DESCRIPTION:
 *          This file is the temperature sensor driver.
 *
 * HISTORY:
 *          2024/1/16 10:50:30, Created by zhangsan.
 *
 * NOTICE:
 *          All rights reserved. By reading this document,
 *          you indicate your acceptance of the terms of this copyright.
 */
#include "cgaa_temperature.h"
#include "cgaa_i2c.h"
#include "cgaa_gpio.h"
#include "cgaa_delay.h"
#include "cgaa_log.h"
#define CGM_TEMP_I2C_PORT               (CGM_I2C_PORT_1)
#define CGM_TEMP_I2C_ADDR               (0x48)
#define CGM_TEMP_REG_TEMP               (0x00)
static uint8_t cgm_temp_i2c_read_reg(uint8_t reg)
{
    uint8_t data = 0;
    cgaa_i2c_read(CGM_TEMP_I2C_PORT, CGM_TEMP_I2C_ADDR, reg, &data, 1);
    return data;
}
static void cgm_temp_i2c_write_reg(uint8_t reg, uint8_t data)
{
    cgaa_i2c_write(CGM_TEMP_I2C_PORT, CGM_TEMP_I2C_ADDR, reg, &data, 1);
}
float cgaa_get_temperature(void)
{
    uint8_t temp_data[2] = {0};
    int16_t temp_value = 0;
    float temperature = 0.0f;
    cgaa_i2c_read(CGM_TEMP_I2C_PORT, CGM_TEMP_I2C_ADDR, CGM_TEMP_REG_TEMP, temp_data, 2);
    temp_value = (temp_data[0] << 8) | temp_data[1];
    temperature = (float)temp_value / 256.0f;
    return temperature;
}
void cgaa_temperature_init(void)
{
    cgaa_i2c_init(CGM_TEMP_I2C_PORT, 100000);
}