#ifndef COMMUNICATION_H
#define COMMUNICATION_H

#define AZ	1
#define EL	2

#define AZ_CTRL	1
#define EL_CTRL	2

#define PRIM	1
#define SLAV	2


void SendCommand(int cmd_index);

void SendJogCmd(int Velocity);

//send command to azimuth and elevation controller
void SendCommand(int cmd_index);

void SetCurrentController(int axis);

int RecvCtrlSts(void);

int Bcd2Bin(unsigned char *buff);

//convert a integer to BCD code
void Bin2Bcd(int bin, unsigned char *buff);

//send encoder value to center computer	
void SendEncoder(int axis, int code);

//Receive command from center computer
int RecvCmd(void);

int ReadAzCmd(int *val);

int ReadElCmd(int *val);

int ReadCmd(int *val);

extern int CurrentController;
extern int AzCtrlErrCode;
extern int ElCtrlErrCode;

extern int Azimuth;
extern int Elevation;

#endif