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/Classwork/ECE4534 - Embedded Systems/PIC 27J13/xbee.h
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#ifndef __xbee_h
#define __xbee_h
 
#define XBEE_BUFFER_SIZE MSGLEN
#define XBEE_START_DELIMITER 0x7E
 
// Expected 'next' state
#define XBEE_STATE_READ_START 10
#define XBEE_STATE_READ_LENGTH_HIGH 11
#define XBEE_STATE_READ_LENGTH_LOW 12
#define XBEE_STATE_READ_FRAME_DATA 14
#define XBEE_STATE_READ_CHECKSUM 15
 
// Command Frame Type
#define XBEE_TX_AT_COMMAND 0x08
#define XBEE_TX_AT_COMMAND_QUEUE 0x09
#define XBEE_RX_AT_COMMAND_RESPONSE 0x88
 
#define XBEE_TX_DATA_PACKET 0x10
#define XBEE_RX_DATA_PACKET 0x90
#define XBEE_RX_DATA_TX_STATUS 0x8B
#define XBEE_RX_IO_DATA_SAMPLE 0x92
#define XBEE_TX_EXPLICIT_COMMAND 0x11
#define XBEE_RX_EXPLICIT_COMMAND 0x91
 
#define XBEE_TX_REMOTE_AT_COMMAND 0x17
#define XBEE_RX_REMOTE_AT_COMMAND_RESPONSE 0x97
 
#define XBEE_TX_CREATE_SOURCE_ROUTE 0x21
#define XBEE_RX_ROUTE_RECORD 0xA1
#define XBEE_RX_NODE_IDENTIFICATION 0x95
#define XBEE_RX_FRAME_MODEM_STATUS 0x8A
 
typedef struct {
union {
unsigned long long_value;
unsigned char char_value[4]; // Little Endian!!
} UPPER_32;
union {
unsigned long long_value;
unsigned char char_value[4]; // Little Endian!!
} LOWER_32;
} XBEE_ADDRESS_64;
 
typedef struct {
union {
unsigned int int_value;
unsigned char char_value[2]; // Little Endian!!
} INT_16;
} XBEE_ADDRESS_16;
 
// Unique Frame Components
typedef struct {
unsigned char frame_type;
unsigned char frame_id;
unsigned char command[2];
unsigned char data[XBEE_BUFFER_SIZE];
} XBEE_TX_AT_COMMAND_FRAME;
#define XBEE_TX_AT_COMMAND_FRAME_SIZE 4
 
typedef struct {
unsigned char frame_type;
unsigned char frame_id;
unsigned char command[2];
unsigned char data[XBEE_BUFFER_SIZE];
} XBEE_TX_AT_COMMAND_QUEUE_FRAME;
#define XBEE_TX_AT_COMMAND_QUEUE_FRAME_SIZE 4
 
typedef struct {
unsigned char frame_type;
unsigned char frame_id;
unsigned char command[2];
unsigned char command_status;
unsigned char data[XBEE_BUFFER_SIZE];
} XBEE_RX_AT_COMMAND_RESPONSE_FRAME;
#define XBEE_RX_AT_COMMAND_RESPONSE_FRAME_SIZE 5
 
typedef struct {
unsigned char frame_type;
unsigned char frame_id;
XBEE_ADDRESS_64 destination_64;
XBEE_ADDRESS_16 destination_16;
unsigned char broadcast_radius;
unsigned char options;
unsigned char data[XBEE_BUFFER_SIZE];
} XBEE_TX_DATA_PACKET_FRAME;
#define XBEE_TX_DATA_PACKET_FRAME_SIZE 14
 
typedef struct {
unsigned char frame_type;
XBEE_ADDRESS_64 source_64;
XBEE_ADDRESS_16 source_16;
unsigned char recieve_options;
unsigned char data[XBEE_BUFFER_SIZE];
} XBEE_RX_DATA_PACKET_FRAME;
#define XBEE_RX_DATA_PACKET_FRAME_SIZE 12
 
typedef struct {
unsigned char frame_type;
unsigned char frame_id;
XBEE_ADDRESS_16 destination_16;
unsigned char transmit_retry_count;
unsigned char delivery_status;
unsigned char discovery_status;
} XBEE_RX_DATA_TX_STATUS_FRAME;
#define XBEE_RX_DATA_TX_STATUS_FRAME_SIZE 7
 
typedef struct {
unsigned char frame_type;
XBEE_ADDRESS_64 source_64;
XBEE_ADDRESS_16 source_16;
unsigned char recieve_options;
unsigned char number_of_samples;
unsigned char digital_ch_mask[2];
unsigned char analog_ch_mask;
unsigned char digital_samples[2];
unsigned char analog_samples[8];
} XBEE_RX_IO_DATA_SAMPLE_FRAME;
#define XBEE_RX_IO_DATA_SAMPLE_FRAME_SIZE 26
 
typedef struct {
unsigned char frame_type;
unsigned char frame_id;
XBEE_ADDRESS_64 destination_64;
XBEE_ADDRESS_16 destination_16;
unsigned char source_endpoint;
unsigned char destination_endpoint;
unsigned char cluster_id[2];
unsigned char profile_id[2];
unsigned char broadcast_radius;
unsigned char transmit_options;
unsigned char data[XBEE_BUFFER_SIZE];
} XBEE_TX_EXPLICIT_COMMAND_FRAME;
#define XBEE_TX_EXPLICIT_COMMAND_FRAME_SIZE 20
 
typedef struct {
unsigned char frame_type;
XBEE_ADDRESS_64 source_64;
XBEE_ADDRESS_16 source_16;
unsigned char source_endpoint;
unsigned char destination_endpoint;
unsigned char cluster_id[2];
unsigned char profile_id[2];
unsigned char recieve_options;
unsigned char data[XBEE_BUFFER_SIZE];
} XBEE_RX_EXPLICIT_COMMAND_FRAME;
#define XBEE_RX_EXPLICIT_COMMAND_FRAME_SIZE 18
 
typedef struct {
unsigned char frame_type;
unsigned char frame_id;
XBEE_ADDRESS_64 destination_64;
XBEE_ADDRESS_16 destination_16;
unsigned char remote_options;
unsigned char command[2];
unsigned char data[XBEE_BUFFER_SIZE];
} XBEE_TX_REMOTE_AT_COMMAND_FRAME;
#define XBEE_TX_REMOTE_AT_COMMAND_FRAME_SIZE 15
 
typedef struct {
unsigned char frame_type;
unsigned char frame_id;
XBEE_ADDRESS_64 source_64;
XBEE_ADDRESS_16 source_16;
unsigned char command[2];
unsigned char command_status;
unsigned char command_data[4];
} XBEE_RX_REMOTE_AT_COMMAND_FRAME;
#define XBEE_RX_REMOTE_AT_COMMAND_FRAME_SIZE 19
 
typedef struct {
unsigned char frame_type;
unsigned char frame_id;
XBEE_ADDRESS_64 destination_64;
XBEE_ADDRESS_16 destination_16;
unsigned char route_options;
unsigned char num_of_addresses;
unsigned char addresses[XBEE_BUFFER_SIZE];
} XBEE_TX_CREATE_SOURCE_ROUTE_FRAME;
#define XBEE_TX_CREATE_SOURCE_ROUTE_FRAME_SIZE 14
 
typedef struct {
unsigned char frame_type;
XBEE_ADDRESS_64 source_64;
XBEE_ADDRESS_16 source_16;
unsigned char recieve_options;
unsigned char num_of_addresses;
unsigned char addresses[XBEE_BUFFER_SIZE];
} XBEE_RX_ROUTE_RECORD_FRAME;
#define XBEE_RX_ROUTE_RECORD_FRAME_SIZE 13
 
typedef struct {
unsigned char frame_type;
XBEE_ADDRESS_64 source_64;
XBEE_ADDRESS_16 source_16;
unsigned char recieve_options;
XBEE_ADDRESS_16 remote_16;
XBEE_ADDRESS_64 remote_64;
unsigned char NI_string[2];
XBEE_ADDRESS_16 parent_16;
unsigned char device_type;
unsigned char source_event;
unsigned char profile_id[2];
unsigned char manufacturer_id[2];
} XBEE_RX_NODE_IDENTIFICATION_INDICATOR_FRAME;
#define XBEE_RX_NODE_IDENTIFICATION_INDICATOR_FRAME_SIZE 32
 
typedef struct {
unsigned char frame_type;
unsigned char status;
} XBEE_RX_MODEM_STATUS_FRAME;
#define XBEE_RX_MODEM_STATUS_FRAME_SIZE 2
 
// Common Frame Components
typedef struct __XBEE_FRAME {
unsigned char start_delimiter;
XBEE_ADDRESS_16 length;
union {
XBEE_TX_AT_COMMAND_FRAME TX_AT_COMMAND;
XBEE_TX_AT_COMMAND_QUEUE_FRAME TX_AT_COMMAND_QUEUE;
XBEE_RX_AT_COMMAND_RESPONSE_FRAME RX_AT_COMMAND_RESPONSE;
XBEE_TX_DATA_PACKET_FRAME TX_DATA_PACKET;
XBEE_RX_DATA_PACKET_FRAME RX_DATA_PACKET;
XBEE_RX_DATA_TX_STATUS_FRAME RX_DATA_TX_STATUS;
XBEE_RX_IO_DATA_SAMPLE_FRAME RX_IO_DATA_SAMPLE;
XBEE_TX_EXPLICIT_COMMAND_FRAME TX_EXPLICIT_COMMAND;
XBEE_RX_EXPLICIT_COMMAND_FRAME RX_EXPLICIT_COMMAND;
XBEE_TX_REMOTE_AT_COMMAND_FRAME TX_REMOTE_AT_COMMAND;
XBEE_RX_REMOTE_AT_COMMAND_FRAME RX_REMOTE_AT_COMMAND;
XBEE_TX_CREATE_SOURCE_ROUTE_FRAME TX_CREATE_SOURCE_ROUTE;
XBEE_RX_ROUTE_RECORD_FRAME RX_ROUTE_RECORD;
XBEE_RX_NODE_IDENTIFICATION_INDICATOR_FRAME RX_NODE_IDENTIFICATION;
XBEE_RX_MODEM_STATUS_FRAME RX_MODEM_STATUS;
} FRAME;
} XBEE_FRAME;
 
// Overall Data Structure
typedef struct __xbee_data {
XBEE_FRAME rcv_frame;
unsigned char dataind;
unsigned char checksum_sum;
unsigned char read_state;
unsigned char msgtype;
} XBEE_DATA;
 
 
void xbee_init(XBEE_DATA *);
void xbee_read_serial(unsigned char);
void xbee_process_recieved_frame(void);
//void xbee_process_transmit_frame_interrupt(void);
void xbee_process_transmit_frame(void *data, unsigned char length);
 
void xbee_set_RTS(unsigned char);
unsigned char xbee_read_CTS(void);
 
#endif