text: #ifndef __SERVO_IF_H__
  #define __SERVO_IF_H__
  
  #include "type.h"
  
  #define NUM_OF_SERVOS 8
  extern xdata u8 servo_data[3 * NUM_OF_SERVOS];
  extern volatile bit rw_servo_if;
  
  void servo_if_polling();
  
  #endif
  