_rs485.h

全自动剥线机（C语言源码＋DOC文档说明）

/* this is the _rs485.h module, all the communication head parameter is define here. */

/* specification */
/* this program define the following prefix as a rule */
/* p     - pointer variable
   g     - global variable
   d     - local variable
   c     - counter
   b     - bit  
   lc    - local counter
   gc    - global counter
   uchar - unsigned char
   uint  - unsigned int
   ulong - unsigned long
   f     - function
   CN    - constant data     
   AD    - constant address         */

/* Define the communication constant. */
#define   CN_DAHEADLENGTH    6     /* define the data head length. */
#define   CN_COMMFLASH       6     /* define the comm flash timer. */ 
#define   CN_DELAYTIMER      45    /* delay for data respond.      */
#define   CN_FRAME           80    /* the frame byte number.       */
#define   CN_COMMOK          0x55  /* data communication OK.       */
#define   CN_COMMERR         0xAA  /* data communication err.      */  

/* define the data receive status value. */
#define   CN_ADDR_HANDLE       0       
#define   CN_DATAHEAD_HANDLE   1 
#define   CN_DATA_HANDLE       2

/* define the receive flash flag. */
#define   CN_RECE_FOFF         0
#define   CN_RECE_FON          1
#define   CN_RECE_FOFFOVER     2
#define   CN_RECE_FONOVER      3




/**************************************************************************
Edit by:
FRANK	                             		      20040103  ShenZhen
**************************************************************************/