#ifndef __MODBUS_H
#define __MODBUS_H	 
#include "sys.h"
#include "usart2.h"
#include "tim2.h"
#define MB_SER_PDU_SIZE_MAX     128 
typedef struct 
{
  unsigned char  data[128]; 								
  unsigned char  len;     								
} UART_msg;
typedef enum
{
    STATE_RX_INIT,             
    STATE_RX_IDLE,              
    STATE_RX_RCV,               
    STATE_RX_ERROR            
} eMBRcvState;
typedef enum
{
    STATE_TX_IDLE,              
    STATE_TX_XMIT              
} eMBSndState;
extern volatile eMBSndState eSndState;
extern volatile eMBRcvState eRcvState;
extern volatile u8  ucRTUBuf[MB_SER_PDU_SIZE_MAX];
extern volatile u8  usRcvBufferPos;
extern volatile u8  ucRTU_TBuf[MB_SER_PDU_SIZE_MAX];
extern volatile u8  usRcv_TBufferPos;
typedef uint8_t BOOL;
#ifndef TRUE
#define TRUE            1
#endif
#ifndef FALSE
#define FALSE           0
#endif
void eMBRTUStart_Rx( void );
void eMBRTUStart_Tx( void );
void eMBRTUStop( void );
u8 Slave_Addr_check(u8 addr);
void BSP_modbus(u16 band) ;
#endif