main.c

凌阳驱动485接收程序与send0配对

#include "SPCE061V004.H"
#define y    0x80
#define x1    0x80
#define  RE_L  *P_IOB_Data&=0xffbf   //IOB6
#define  RE_H  *P_IOB_Data|=0x0040   //IOB6
#define  DE_L  *P_IOB_Data&=0xffdf   //IOB5
#define  DE_H  *P_IOB_Data|=0x0020   //IOB5
extern unsigned int uiRS_Buff;				//串行口接收数据缓存
extern unsigned int uiRS_ReciveFlag;		//串行口接收数据标识
extern unsigned int uiTX_Buff[5];			//发送数据缓冲区   暂时设定为10个8bit的数据区域	
unsigned int  Ret;
unsigned int buf[1024];
extern tab1[];



void main()
{
     unsigned int i=0,a,b=0,len,d,m=0,n=0;	
     init_lcd (); 
	 chn_disp(tab1,0x80,16);
	*P_IOB_Dir=0x0460;             //IOB7和IOB10分别被设置为输入和输出管脚作为Rx和Tx管脚
	*P_IOB_Attrib=0x0460;
	*P_IOB_Data = 0x0000;
		
	*P_UART_BaudScalarLow = 0x00;
	*P_UART_BaudScalarHigh = 0x05;   //波特率9600
	*P_UART_Command1 = 0x00;		 //	无UART中断
	*P_UART_Command2 = 0xc0;	     // 允通接收发送管脚                          
    RE_L;//*P_IOB_Data&=0xffbf
    DE_L;//*P_IOB_Data&=0xffdf
    i=0x00cc;    //gai wuo
  while(i!=0x00aa)   //gaiguo 00aa                     
 {
 	*P_Watchdog_Clear=1; 
      i=*P_UART_Data;                  //读 P_UART_Data 单元,清除RxRDY标志位
  }
 
     Ret=*P_UART_Command2;
         Ret=Ret&0x0080 ;    
     while(Ret==0) 
     {  
     	 Ret=*P_UART_Command2;
         Ret=Ret&0x0080 ;   
         *P_Watchdog_Clear=1;
       }   
      len= *P_UART_Data;  
                                                                                                                   
for(d=0;d<len;d++)
  {  
  	Ret=*P_UART_Command2;
    Ret=Ret&0x0080;
 while(Ret==0) 
  { 
  	Ret=*P_UART_Command2;
  Ret=Ret&0x0080;       
  *P_Watchdog_Clear=1; 
  }     
    buf[d]= *P_UART_Data;
 }
   //delay(10);
    RE_H ;//*P_IOB_Data|=0x0040
    DE_H ; //*P_IOB_Data|=0x0020
  
    Ret=*P_UART_Command2;
    Ret=Ret&0x0040;
      while(Ret==0) 
      { Ret=*P_UART_Command2;
     Ret=Ret&0x0040;       
     *P_Watchdog_Clear=1;} 
     *P_UART_Data=0;     
       clrram ();
 wr_lcd (0,0,0x30); 
 chn_disp(buf,0x80,len);
 //img_disp(buf);
  while(1) *P_Watchdog_Clear=1;
  
}

void delay (int us)   //delay time
{
  while(us--)
 *P_Watchdog_Clear=1;
}