main.c

proface的触摸屏和艾默生的变频器通过此程序可相互通信

#include ".\STC89c5x.H"
#include"comm.h"

#define EV1000_STARTADDERSS  0


 sbit  RTS0=P1^0;
sbit  RTS1=P1^1;
sbit  RTS2=P1^2;
sbit  RTS3=P1^3;
sbit  RTS4=P1^4;
sbit  RUN=P1^6;

sbit  RESET =P1^5;




struct    datatype
{
  unsigned int frequency;
  unsigned char flag_station;
}EV1000_BUF[50];

unsigned char frequency_change=0;
unsigned char i,j;
unsigned char timer2_num=0;
unsigned char send_timer=0;
	 unsigned char temp;

 void time_delay(unsigned int s);

extern unsigned char uc_554a_r_complete;
extern unsigned char uc_554a_r_number;
extern unsigned char uc_554b_r_complete;
extern unsigned char uc_554b_r_number;
extern unsigned char uc_554c_r_complete;
extern unsigned char uc_554c_r_number;
extern unsigned char uc_554d_r_complete;
extern unsigned char uc_554d_r_number;
extern unsigned int read_hmi_buf[50];
extern unsigned char  uart_complete;
extern unsigned char   timer_flag;
extern unsigned char frame_length;
extern void readhmi_message(void);
extern void writehmi_message(void);
extern void uart_timer_set(void);
extern void   init_16c554uart(void);
extern void  modify_frequency(unsigned char station, unsigned int frequency);
extern void frame_16c554asend(unsigned char t);
extern void frame_16c554bsend(unsigned char t);
extern void frame_16c554csend(unsigned char t);
extern void frame_16c554dsend(unsigned char t);

#define 	WDT_VALUE		0xf2  // 142.2ms
unsigned char data cy_startup _at_ 0x7f;

void  main(void)
{ 
  if(cy_startup!=0xaa)//冷启动
  {
   cy_startup=0xaa;
   AUXR=0x01;   //禁止ALE输出
   RESET=FALSE;     //16c554复位初始为低
   RTS0=FALSE;        // 默认串口全为接收状态
   RTS1=FALSE;
   RTS2=FALSE;
   RTS3=FALSE;
   RTS4=FALSE;
   RUN=OFF;
   time_delay(500);	//time delay
   uart_timer_set();
   init_16c554uart();
   for(i=0;i<50;i++)              //初试设定频率为0，变频器站地址为0-49
   {
     EV1000_BUF[i].frequency=0;
     EV1000_BUF[i].flag_station=i+EV1000_STARTADDERSS;
   }
   RUN=!RUN;
   time_delay(500);	//time delay
   RUN=!RUN;
  
    ES=ENABLE;
   EX0=ENABLE;
   EX1=ENABLE;
   ET0=ENABLE;
   ET2=ENABLE;
   EA=ENABLE;

  }
   
  for(;;)
  	
  {
	 


        WDT_CONTR=WDT_VALUE; //watch dog
     
	   
	  
     
        if(timer_flag!=0)  //每隔500MS跟屏通信一次
	{

		 RTS0=TRUE;			
						
		 readhmi_message();    //read hmi data
		 RTS0=FALSE;
		
		timer_flag=0;
		}
	
	if(uart_complete==UART_COMPLETE)  //从屏接受到数据
		{
		 for(i=0;i<1;i++)
		 	{
		  if(read_hmi_buf[i]!=EV1000_BUF[i].frequency)
			    	{
				 EV1000_BUF[i].frequency=read_hmi_buf[i]; //频率改变存储
				 EV1000_BUF[i].flag_station=(EV1000_BUF[i].flag_station|0x80);            //
		  	}
			 if(EV1000_BUF[i].flag_station>127)  //频率改变
				{frequency_change=1;              //置位频率改变标志
			 	  temp=i;
			 	}
		        }
               
		 uart_complete=0;
		 TR0=1;
		 ES=ENABLE;
		
		}
	if(frequency_change==1)
		{
		     
		     	
		 	  if(EV1000_BUF[temp].flag_station>127)//频率改变发送到相应站点
		 	      
		  	  	{
		  	  	EV1000_BUF[temp].flag_station=(EV1000_BUF[temp].flag_station&0x7f);//清除改变标志位
			  	modify_frequency(EV1000_BUF[temp].flag_station,EV1000_BUF[temp].frequency);
				if((EV1000_BUF[temp].flag_station>=EV1000_STARTADDERSS)&&(EV1000_BUF[temp].flag_station<=(EV1000_STARTADDERSS+13)))
				 //前14个站接到串口1上，这样不用每个串口多发数据，节约时间
                             frame_16c554asend(18);//向串口1发送数据
                             if((EV1000_BUF[temp].flag_station>(EV1000_STARTADDERSS+13))&&(EV1000_BUF[temp].flag_station<=(EV1000_STARTADDERSS+27)))
			        frame_16c554bsend(18);//15~27号在串口2上
			       if((EV1000_BUF[temp].flag_station>(EV1000_STARTADDERSS+27))&&(EV1000_BUF[temp].flag_station<=(EV1000_STARTADDERSS+41))) 
				frame_16c554csend(18);//28~41在串口3上
				if((EV1000_BUF[temp].flag_station>(EV1000_STARTADDERSS+41))&&(EV1000_BUF[temp].flag_station<=(EV1000_STARTADDERSS+54)))
				frame_16c554dsend(18); //42~54在串口4
				RCAP2H=RCAP2H_VALUE;   //定时器2工作
				RCAP2L=RCAP2L_VALUE;
				TR2=1;
		  	  	}
		     
		
			  
		   frequency_change=0;
			  	
		         
		}

	
     if((uc_554a_r_complete==UART_COMPLETE)||(uc_554b_r_complete==UART_COMPLETE)||(uc_554c_r_complete==UART_COMPLETE)||(uc_554d_r_complete==UART_COMPLETE))//接受到正确数据帧
		{
                uc_554a_r_complete=0;
		  uc_554a_r_number=0;
		  uc_554b_r_complete=0;
		  uc_554b_r_number=0;
		   uc_554c_r_complete=0;
		  uc_554c_r_number=0;
		  uc_554d_r_complete=0;
		  uc_554d_r_number=0;
		  
		   TR2=0;
		   timer2_num=0;

		}
	if(timer2_num>=5)   //数据发送100MS没有回再次发送
		{
		  timer2_num=0;         
		  TR2=0;
		   
		 if((EV1000_BUF[temp].flag_station>=EV1000_STARTADDERSS)&&(EV1000_BUF[temp].flag_station<=(EV1000_STARTADDERSS+13)))
		   frame_16c554asend(18);//向串口1发送数据
	          if((EV1000_BUF[temp].flag_station>(EV1000_STARTADDERSS+13))&&(EV1000_BUF[temp].flag_station<=(EV1000_STARTADDERSS+27)))
	         frame_16c554bsend(18);//15~27号在串口2上
		  if((EV1000_BUF[temp].flag_station>(EV1000_STARTADDERSS+27))&&(EV1000_BUF[temp].flag_station<=(EV1000_STARTADDERSS+41)))	
		  frame_16c554csend(18);//28~41在串口3上
		 if((EV1000_BUF[temp].flag_station>(EV1000_STARTADDERSS+41))&&(EV1000_BUF[temp].flag_station<=(EV1000_STARTADDERSS+54)))
		 frame_16c554dsend(18); //42~54在串口4
		  RCAP2H=RCAP2H_VALUE;
		 RCAP2L=RCAP2L_VALUE;
		 TR2=1;
		 send_timer++;
		 if(send_timer==4)	//发送四次，若通信不正确 放弃
		 	{
		 	   send_timer=0;
			   TR2=0;
			   timer2_num=0;
			                              //发送HMI通信错误标志

		 	}


		}
  }


}

/**************************************************************************************************
Name: 		 void time_delay(unsigned int)
Description: 	 time delay, 11.0592M  1 ≌ 2mS
Calls: 		 none
**************************************************************************************************/
void time_delay(unsigned int s)
	{
		unsigned int p;

		for(p=s;p;p--)
			{
				for(i=166;i;i--);
			}
	}


void	timer2_int(void) interrupt 5 using 0       //WAIT FOR REPLAY TIME timer2_num*20ms
	{
		TF2=FALSE;	
		RCAP2H=RCAP2H_VALUE;
		RCAP2L=RCAP2L_VALUE;
		
			timer2_num++;
		
			
			
	}