ATX2 & Wireless-X Control Motor only

#include <ATX2.h>
byte x;
void setup(){
  XIO();
  pinMode(2,INPUT_PULLUP);
}
void loop(){

   while(uart1_ready()>0){
       x=uart1_read();
   }
    switch (x){
      case 0x01: BK(60);break;
      case 0x02: SR(60);break;
      case 0x04: SL(60);break;
      case 0x08: FD2(60,60);break;
      case 0x81: BK(100);break;
      case 0x82: SR(100);break;
      case 0x84: SL(100);break;
      case 0x88: FD2(100,100);break;
      default: AO();
     }
}