staserver.h

该短代码实现了和上位机的通信功能

/**********************************************************************/
/*   substation.h    headfile for substation server using UDP protocal  */
/*                 Copyright 2003 Hua Xun Inc.                   */
 
/*
 modification history
 --------------------
 2003-10-16  Written by SunYanjin
 2005-4-18   Modified by Lvqiaoyan
*/
/* definations for substation board */
/* Package format
    ADCH0+ADCH1+ADCH2+ADCH3+ADCH4+ADCH5+ADCH6+ADCH7+KEY0+KEY1+Others
    ADCH = A/D convertor Channel
    Key  = On/Off 
*/
/* Address Space:  
    using nECS3 
    base address 0x61000000
*/  
 /* Defines common information for both server and client.*/
 /* Note:
       when testing , downloading and spawning task every time ,
    u should change the port number! 
 */
 #ifndef SUBSTATION
 #define SUBSTATION
 
 
 #define SERVER_PORT_NUM  5002
 #define MSG_SIZE  5
 #define DAT_SIZE  42
 
 
 /* Structure used for request/message from client */
 
 struct request
     {
     char reply[8]; /* TRUE if client wants a reply */
     char action;
     char message[MSG_SIZE];	/* Message buffer */
     };
extern char station_data[];
extern char control_info[];

extern void ipModify();
extern char ipModifyData;



#endif SUBSTATION/*end SUBSTATION*/