struct Mod {
  unsigned char VVL:1;
  unsigned char freq:1;
  unsigned char O_2:1;
  unsigned char Vent:1;
  unsigned char IVL:1;
  unsigned char _100:1;
  unsigned char _50:1;
  unsigned char HF:1;
};

struct Bat {
  unsigned char H2O:1;
  unsigned char kont_bat:1;
  unsigned char sc12:2;
  //unsigned char sc2:1;
  unsigned char v220:1;
  //unsigned char sc5:1;
 // unsigned char sc4:1;
  unsigned char sc345:3;
};

struct sc {
  unsigned char sc1:1;
  unsigned char sc2:1;
  unsigned char sc3:1;
  unsigned char sc4:1;
  unsigned char sc8:1;
  unsigned char sc7:1;
  unsigned char sc6:1;
  unsigned char sc5:1;
    };
union u_bat{
      struct Bat ;
      unsigned char c_Bat;
    };
union u_sc {
      unsigned char m_scale [5];
      struct sc scale[5] ;
    } ;
struct disp{
  union dsp {
     unsigned char screen[15]; 
     struct all {
        struct Mod mode ;
        unsigned char Number[8] ;
        union u_bat battery ;
        union u_sc u_scale ;
      }struc_dsp;
  };
}display;

//unsigned char *ptrMax ;
struct  display *ptrMax;


if (PressRes>MaxPress){
         ptrMax = &display.struc_dsp.u_scale.m_scale[4-NumByte] ;
         
         MaxUrov= 0x03;
     }
      else{
        *ptrMax |= MaxUrov;
        break;
     }