rs.h

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#define MAX_RECEIVE_TIMEOUT 102000  
#define RS_485 /* This indicates are we using RS485 or RS232. If RS485, Receive/Transmit enable needed */

#define MAX_SIZE_TRANSMIT_BUFFER 1024

#define RS_485_PORT PORTE
#define RS_485_DIR DDRE
#define RS_485_ENABLE_BIT 3

#ifdef RS_485
#define ENABLE_RS485_TRANSMIT RS_485_PORT |= (1<<RS_485_ENABLE_BIT) 
#define ENABLE_RS485_RECEIVE RS_485_PORT &= ~(1<<RS_485_ENABLE_BIT) 
#else
#define ENABLE_RS485_TRANSMIT
#define ENABLE_RS485_RECEIVE
#endif

#define DISENABLE_COM0_ISR UCSR0B &= ~(1 << RXCIE0);
#define ENABLE_COM0_ISR UCSR0B |= (1 << RXCIE0);
#define USART0_STATUS UCSR0A

#define ENABLE_TRANSMIT_ISR UCSR1B |= (1 << TXCIE1);
#define DISENABLE_TRANSMIT_ISR UCSR1B &= ~(1 << TXCIE1);

#define ERROR_FLAGS (1<<FE0)|(1<<DOR0)|(1<<UPE0)

#define COM_ERR_OFF INDICATION_PORT |= (1<<COM_ERR_LED)
#define COM_ERR_ON INDICATION_PORT &= ~(1<<COM_ERR_LED)

#ifdef DEBUG
#define SEND_DEBUG( s ) USART1_Transmit_string ( s )
#else
#define SEND_DEBUG( s )
#endif

#ifdef DEBUG2
#define SEND_DEBUG_2( s ) USART1_Transmit_string ( s )
#else
#define SEND_DEBUG_2( s )
#endif

#ifdef DEBUG
#define SEND_DEBUG_CHAR( c ) USART1_Transmit ( c )
#else
#define SEND_DEBUG_CHAR( s )
#endif


void USART0_init ( void );
void USART1_init ( void );

void USART0_Transmit ( unsigned char character );
void USART0_Transmit_string ( unsigned char *string );

void USART1_Transmit_string ( unsigned char *string );
void USART1_int_transmit_string ( unsigned char *string );
void USART1_Transmit ( unsigned char character );