STM32F042模拟I2C总线与AT24C512通信结构体存取数据

//头文件中定义结构体

typedef struct {
    uint8_t UID[12];
    uint8_t KEY[12];
    uint8_t LOCK[12];
    uint8_t UNLOCK_FLAGE[2];
    uint8_t UNLOCK_DAY[1];
    uint8_t UNLOCK_RW_FLAGE[2];
    uint8_t KEY_UNLOCK[12];
}CPU_MCU;

//声明二个结构体全局变量

CPU_MCU  UNLOCK,READ_LOCK;

//声明二个结构体指针变量

CPU_MCU  *WRITE,*READ;

//结构写数据

EEPROM_Write_NBytes(0x00,(uint8_t *)&UNLOCK,sizeof(UNLOCK));

//结构体读数据

EEPROM_Read_NBytes(0x00,(uint8_t *)&READ_LOCK,sizeof(READ_LOCK));

//结构体指针变量写

EEPROM_Write_NBytes(0x00,(uint8_t *)WRITE,sizeof(WRITE));

//结构体指针变量读

EEPROM_Write_NBytes(0x00,(uint8_t *)READ,sizeof(READ));

注意结构的类型转换问题