Need to measure chip temperature and found two implementations of ADC_GetCurrentTS function. The first is:

UINT8 ADC_GetCurrentTS( UINT16 ts_v )
{
    UINT16  vol_ts;
    UINT16  D85_tem, D85_vol, D25;
    
    vol_ts = (ts_v*1060)>>11;
    D85_tem = (UINT16)((*((PUINT32)ROM_TMP_85C_ADDR)>>16)&0x00ff); 
    D85_vol = *((PUINT16)ROM_TMP_85C_ADDR);
    D25 = *((PUINT32)ROM_TMP_25C_ADDR);
    
    
    return ( D85_tem - ( D85_vol - vol_ts + 8 ) * 16 / D25 );
}

The second is:

int ADC_GetCurrentTS( UINT16 ts_v )
{
    UINT16  vol_ts;
    UINT16  D85_tem, D85_vol;
    UINT16  D25_tem, D25_vol;
    UINT16  temperK;
    UINT32  temp;
    UINT8   sum, sumck;
    int     cal;    
    
    temperK = 64;    // mV/16^C
    vol_ts = (ts_v*1060)>>11;
    temp = (*((PUINT32)ROM_TMP_25C_ADDR));
    D25_tem = temp;
    D25_vol = (temp>>16);
    
    if( D25_vol != 0 ){ // ????????????
        // T = T85 + (V-V85)*16/D25
        cal =  (D25_tem*temperK + vol_ts*16 + (temperK>>1) - D25_vol*16) / temperK ;    
        return ( cal );
    }
    else{  // ????????????  D25_tem  
        temp = (*((PUINT32)ROM_TMP_85C_ADDR));     
        sum = (UINT8)(temp>>24);        // ×???×???        
        sumck = (UINT8)(temp>>16);
        sumck += (UINT8)(temp>>8);
        sumck += (UINT8)temp;
        if( sum != sumck )        return 0xff;        // ???é?????í
        
        temperK = D25_tem;      // D25_tem = temperK 
        D85_tem = (UINT16)((temp>>16)&0x00ff); 
        D85_vol = (UINT16)temp; 
        
        // T = T85 + (V-V85)*16/D25
        cal =  (D85_tem*temperK + vol_ts*16 + (temperK>>1) - D85_vol*16) / temperK ;    
        return ( cal );  
    }
}

Which is better/more correct?

第二种是最新的，参考第二种