#include <REG922.H>
#define uint unsigned int
#define uchar unsigned char

#define AMR_STAT_PREAMBLE  		1
#define AMR_STAT_FRAMESYNC		2
#define AMR_STAT_FRAMESYNC1		3
#define AMR_STAT_DATALEN		4
#define AMR_STAT_DATA			5

#define AMR_PREAMBLE	0xFE
#define AMR_FRAMESYNC	0x68
#define AMR_FRAME_END	0x16

// Offset into amr frame
#define AMR_OS_A0		0
#define AMR_OS_C		0
#define AMR_OS_L		1
//#define AMR_OS_D		8
#define AMR_OS_DI0		8
#define AMR_OS_DI1		9

// C value for command and ack
#define AMR_COMMAND				0x00	
#define AMR_ACK_OK				0x80	// positive ack
#define AMR_ACK_ERR				0xC0	// error in command

// DI0 value for various functions
#define AMR_POLL_DATA			0x01
#define AMR_START_CCTR  		0x02	// start cctr normal operation
#define AMR_STOP_CCTR 			0x03	// stop cctr normal operation
#define AMR_RST_CCTR			0x04	// reset cctr
#define AMR_ADD_METER			0x05	// add a new meter
#define AMR_SET_RELAY			0x06	// define relay node
#define AMR_SEARCH0				0x07	// initial search
#define AMR_SEARCH1				0x08	// search through relays
#define AMR_METER_ADDR			0x09	// meter side, set meter address

#define AMR_GET_METER			0x10	// get meter information
#define AMR_GET_ALL				0x11
#define AMR_GET_STAT			0x12	// get cctr status
#define AMR_MESSAGE				0x13

void amr_init();
uchar amr_check_cs(uchar frame[],bit Q);

uchar amr_calcu_cs(uchar frame[], uint len,uchar i);

void amr_send_frame(uchar addr[6], uchar buf[]);


//void amr_send_frame(char addr[6], char buf[], int len);