基于STM32单片机HAL库硬件I2C读写LTC2943

单片机： STM32L476
库： HAL库
通讯： 硬件I2C，直接用STM32CubeMX生成
目标： 实现读写LTC2943库仑计芯片，采集温度、库伦、电压、电流等。

硬件参考电路

ws_drive_ltc2943.h
驱动程序

/*! @file
    @ingroup LTC2943
    Header for LTC2943: Multicell Battery Gas Gauge with Temperature, Voltage and Current Measurement
*/

#ifndef WS_DRIVE_LTC2943_H
#define WS_DRIVE_LTC2943_H

#include "stm32l4xx_hal.h"

/*! @name LTC2943 I2C Address
@{ */

#define LTC2943_I2C_ADDRESS 0xC8
#define LTC2943_I2C_ALERT_RESPONSE  0x0C

//! @}

#define I2C_READ_BIT    0x01
#define I2C_WRITE_BIT   0x00
#define WITH_ACK  0  //!<  Use with i2c_read(WITH_ACK) to read with an acknowledge
#define WITH_NACK 1 
/*!
| Name                                              | Value |
| :------------------------------------------------ | :---: |
| LTC2943_STATUS_REG                                | 0x00  |
| LTC2943_CONTROL_REG                               | 0x01  |
| LTC2943_ACCUM_CHARGE_MSB_REG                      | 0x02  |
| LTC2943_ACCUM_CHARGE_LSB_REG                      | 0x03  |
| LTC2943_CHARGE_THRESH_HIGH_MSB_REG                | 0x04  |
| LTC2943_CHARGE_THRESH_HIGH_LSB_REG                | 0x05  |
| LTC2943_CHARGE_THRESH_LOW_MSB_REG                 | 0x06  |
| LTC2943_CHARGE_THRESH_LOW_LSB_REG                 | 0x07  |
| LTC2943_VOLTAGE_MSB_REG                           | 0x08  |
| LTC2943_VOLTAGE_LSB_REG                           | 0x09  |
| LTC2943_VOLTAGE_THRESH_HIGH_MSB_REG               | 0x0A  |
| LTC2943_VOLTAGE_THRESH_HIGH_LSB_REG               | 0x0B  |
| LTC2943_VOLTAGE_THRESH_LOW_MSB_REG                | 0x0C  |
| LTC2943_VOLTAGE_THRESH_LOW_LSB_REG                | 0x0D  |
| LTC2943_CURRENT_MSB_REG                           | 0x0E  |
| LTC2943_CURRENT_LSB_REG                           | 0x0F  |
| LTC2943_CURRENT_THRESH_HIGH_MSB_REG               | 0x10  |
| LTC2943_CURRENT_THRESH_HIGH_LSB_REG               | 0x11  |
| LTC2943_CURRENT_THRESH_LOW_MSB_REG                | 0x12  |
| LTC2943_CURRENT_THRESH_LOW_LSB_REG                | 0x13  |
| LTC2943_TEMPERATURE_MSB_REG                       | 0x14  |
| LTC2943_TEMPERATURE_LSB_REG                       | 0x15  |
| LTC2943_TEMPERATURE_THRESH_HIGH_REG               | 0x16  |
| LTC2943_TEMPERATURE_THRESH_LOW_REG                | 0x17  |
*/

/*! @name Registers
@{ */
// Registers
#define LTC2943_STATUS_REG                          0x00
#define LTC2943_CONTROL_REG                         0x01
#define LTC2943_ACCUM_CHARGE_MSB_REG                0x02
#define LTC2943_ACCUM_CHARGE_LSB_REG                0x03
#define LTC2943_CHARGE_THRESH_HIGH_MSB_REG          0x04
#define LTC2943_CHARGE_THRESH_HIGH_LSB_REG          0x05
#define LTC2943_CHARGE_THRESH_LOW_MSB_REG           0x06
#define LTC2943_CHARGE_THRESH_LOW_LSB_REG           0x07
#define LTC2943_VOLTAGE_MSB_REG                     0x08
#define LTC2943_VOLTAGE_LSB_REG                     0x09
#define LTC2943_VOLTAGE_THRESH_HIGH_MSB_REG         0x0A
#define LTC2943_VOLTAGE_THRESH_HIGH_LSB_REG         0x0B
#define LTC2943_VOLTAGE_THRESH_LOW_MSB_REG          0x0C
#define LTC2943_VOLTAGE_THRESH_LOW_LSB_REG          0x0D
#define LTC2943_CURRENT_MSB_REG                     0x0E
#define LTC2943_CURRENT_LSB_REG                     0x0F
#define LTC2943_CURRENT_THRESH_HIGH_MSB_REG         0x10
#define LTC2943_CURRENT_THRESH_HIGH_LSB_REG         0x11
#define LTC2943_CURRENT_THRESH_LOW_MSB_REG          0x12
#define LTC2943_CURRENT_THRESH_LOW_LSB_REG          0x13
#define LTC2943_TEMPERATURE_MSB_REG                 0x14
#define LTC2943_TEMPERATURE_LSB_REG                 0x15
#define LTC2943_TEMPERATURE_THRESH_HIGH_REG         0x16
#define LTC2943_TEMPERATURE_THRESH_LOW_REG          0x17
//! @}

/*!
| Command Codes                                 | Value     |
| :-------------------------------------------- | :-------: |
| LTC2943_AUTOMATIC_MODE                        | 0xC0      |
| LTC2943_SCAN_MODE                             | 0x80      |
| LTC2943_MANUAL_MODE                           | 0x40      |
| LTC2943_SLEEP_MODE                            | 0x00      |
| LTC2943_PRESCALAR_M_1                         | 0x00      |
| LTC2943_PRESCALAR_M_4                         | 0x08      |
| LTC2943_PRESCALAR_M_16                        | 0x10      |
| LTC2943_PRESCALAR_M_64                        | 0x18      |
| LTC2943_PRESCALAR_M_256                       | 0x20      |
| LTC2943_PRESCALAR_M_1024                      | 0x28      |
| LTC2943_PRESCALAR_M_4096                      | 0x30      |
| LTC2943_PRESCALAR_M_4096_2                    | 0x31      |
| LTC2943_ALERT_MODE                            | 0x04      |
| LTC2943_CHARGE_COMPLETE_MODE                  | 0x02      |
| LTC2943_DISABLE_ALCC_PIN                      | 0x00      |
| LTC2943_SHUTDOWN_MODE                         | 0x01      |
*/

/*! @name Command Codes
@{ */
// Command Codes
#define LTC2943_AUTOMATIC_MODE                  0xC0
#define LTC2943_SCAN_MODE                       0x80
#define LTC2943_MANUAL_MODE                     0x40
#define LTC2943_SLEEP_MODE                      0x00

#define LTC2943_PRESCALAR_M_1                   0x00
#define LTC2943_PRESCALAR_M_4                   0x08
#define LTC2943_PRESCALAR_M_16                  0x10
#define LTC2943_PRESCALAR_M_64                  0x18
#define LTC2943_PRESCALAR_M_256                 0x20
#define LTC2943_PRESCALAR_M_1024                0x28
#define LTC2943_PRESCALAR_M_4096                0x30
#define LTC2943_PRESCALAR_M_4096_2              0x31

#define LTC2943_ALERT_MODE                      0x04
#define LTC2943_CHARGE_COMPLETE_MODE            0x02

#define