联合体变量做函数参数的使用方法

/* ′?′￠×????óê?μ?μ?TDA5238?á1?êy?Y?á11 */
typedef struct
{
    uint8_t UniqueID[4];         /* éè±??¨ò?DòáDo? */
    uint8_t TyrePosition;        /* ??ì￥????ê?±e?? */
    int16_t Pressure;            /* ??ì￥???1 */
    int16_t Temperature;         /* ??ì￥???è */
    int16_t Acceleration;        /* ??á|?ó?ù?è */
    int16_t Voltage;             /* μ??1?μ */
    uint8_t CRC8;                /* D￡?é?? */
    uint8_t RESERVED[16];        /* ±￡á?×??ú */
}TDA5235_RESULT_s;

typedef union
{
    TDA5235_RESULT_s tda5235_obj;
    uint8_t tda5235_buf[sizeof(TDA5235_RESULT_s)];
}TDA5235_RESULT_u;

TDA5235_RESULT_u tda5235_result;    /* ì￥?1×????á1?êy?Y?á1? */

uint8_t TDA5235_Read_FIFO(uint8_t *pObj)