#ifdef LOCAL
#define EXTERN
#else
#define EXTERN extern
#endif


#define RX_BUFFER_SZ  80

EXTERN unsigned char rx_buffer[RX_BUFFER_SZ];
EXTERN unsigned char *rx_ptr;
EXTERN char new_auto_bearing;
EXTERN enum { DBA, DRIP, WFNR, WFDBA } rx_state;

  
