sci_io.c

通过89s51实现的模拟键盘代码

#include <general.h>


/* ----------------
char getchar () 
 {
  char c;

 /*          中断触发
  while (!RI)
  {
  _nop_();
  WDT_cls();
  _nop_();
  }
  
  c = SBUF;
  RI = 0;
  return (c);
 }

void  putchar (char c) 
 {
  if (!TI)
  {	
  SBUF = c;
  }
  else

  {
  TI = 0;
  SBUF = c;
  while (!TI)
  continue;
  TI = 0;
  }
  }

  void keyboard485_disable()
 {
 P1_0=1;
 P1_1=0;
 }
 void camera485_enable()
 {
 P1_2=0;
 P1_3=1;
 }

   ------------ 
 void keyboard485_enable()
 {
 P1_0=0;
 P1_1=1;
 }
  void camera485_disable()
 {
 P1_2=1;
 P1_3=0;
 }*/



 /*		while(1)		  //试验步进电机用程序
	{
	// P0=P1=P3=0;
	// P2=0xff;
	 //P4_0=P4_1=P4_2=P4_3=0;
	// 	for(x=0;x<60000;x++)
	WDT_CONTR=0xff;
//	SBUF=0x41;
	
	}
	while(1)
	{
	 P0_0=0;
	 P0_1=0;
	 P0_2=0;
	 	for(x=0;x<60000;x++)
	WDT_CONTR=0xff;
	 P0_2=1;
	}
while(1)
	{
	for(x=0;x<60000;x++)
	WDT_CONTR=0xff; 
		
	 P0_0=P0_3=0;
	 P0_1=P0_4=P0_5=P0_2=0;

	for(x=0;x<60000;x++)
	WDT_CONTR=0xff;

		}	 




	while(1)
	{	
	P0_0=P0_1=0;   //out1ab
	P0_2=1;
	
	P0_3= 0;
	P0_4=0;
	P0_5=1;   
		
	 
	 for(x=0;x<300;x++)
	WDT_CONTR=0xff; 
  //	LeftRight_out(3);
   P2_0=1;
   P2_1=1;
   P2_2=0;
   P2_3=0;

   P2_7= 1;
   P2_6= 1;
   P2_5= 0;
   P2_4= 0;

		 for(x=0;x<300;x++)
	WDT_CONTR=0xff; 
 
	//LeftRight_out(6);
	P2_0=0;
   P2_1=1;
   P2_2=1;
   P2_3=0;


   P2_7= 0;
   P2_6= 1;
   P2_5= 1;
   P2_4= 0;
		 for(x=0;x<300;x++)
	WDT_CONTR=0xff; 
   
	//LeftRight_out(0xc);
	P2_0=0;
   P2_1=0;
   P2_2=1;	  
   P2_3=1;


   P2_7= 0;
   P2_6= 0;
   P2_5= 1;
   P2_4= 1;
		 for(x=0;x<300;x++)
	WDT_CONTR=0xff; 
   
//	LeftRight_out(9);
P2_0=1;
   P2_1=0;
   P2_2=0;
   P2_3=1;



   P2_7= 1;
   P2_6= 0;
   P2_5= 0;
   P2_4= 1;
   //P0_2=!P0_2;

	}	 */
	/*		switch(keycode_num)
		{
		case 0: break;
		case 1:
			
			for( charvar=0;charvar<=6;charvar++)
				keycode_temp[charvar]=keycode[charvar];
			keycode_num=0;
			if(keycode_temp[1]==ID)
			{ 
				intvar=(((unsigned int )keycode_temp[2])<<8)+(unsigned char )keycode_temp[3];
				switch(intvar)
				{
				case 0x55 :    //选择球机/解码器地址,什么也不用处理,键盘组合用
					break;
				case 0x3 :		//设置预置点
					break;
				case 0x7 :		//调用预置点
					break;
				case 0x5 :		//清除预置点
					break;
				case 0x4f :		//运行轨迹
					break;
				case 0x40 :		//控制摄像机WIDE
					Zoom_wide();
					while(!keycode_num)
						WDT_cls();
					for( charvar=0;charvar<=6;charvar++)
						keycode_temp[charvar]=keycode[charvar];
					keycode_num=0;
					Zoom_stop();	
					break;
				case 0x20:		//TELE
					Zoom_tele();
					while(!keycode_num)
						WDT_cls();
					for( charvar=0;charvar<=6;charvar++)
						keycode_temp[charvar]=keycode[charvar];
					keycode_num=0;
					Zoom_stop();
					break;
				case 0x80 :		//FAR
					Focus_far();
					while(!keycode_num)
						WDT_cls();
					for( charvar=0;charvar<=6;charvar++)
						keycode_temp[charvar]=keycode[charvar];
					keycode_num=0;
					Focus_stop();
					break;
				case 0x100 :	//NEAR
					Focus_near();
					while(!keycode_num)
						WDT_cls();
					for( charvar=0;charvar<=6;charvar++)
						keycode_temp[charvar]=keycode[charvar];
					keycode_num=0;
					Focus_stop();
					break;
				case 0x200 :	//OPEN  无控制
					while(!keycode_num)
						WDT_cls();
					for( charvar=0;charvar<=6;charvar++)
						keycode_temp[charvar]=keycode[charvar];
					keycode_num=0;
					break;
				case 0x400 :	//CLOSE	 无控制
					while(!keycode_num)
						WDT_cls();
					for( charvar=0;charvar<=6;charvar++)
						keycode_temp[charvar]=keycode[charvar];
					keycode_num=0;
					break;
				case 0x8 :		//摇杆向上
					
					dir_vertical=1;
					T1_start();
					do
					{
						while(!keycode_num)
							WDT_cls();
						for( charvar=0;charvar<=6;charvar++)
							keycode_temp[charvar]=keycode[charvar];
						keycode_num=0;
						intvar=(((unsigned int )keycode_temp[2])<<8)+(unsigned char )keycode_temp[3];
					}while(intvar!=0);
					T1_stop();
					break;
				case 0x10 :		//摇杆向下
					dir_vertical=0;
					T1_start();
					do
					{
						while(!keycode_num)
							WDT_cls();
						for( charvar=0;charvar<=6;charvar++)
							keycode_temp[charvar]=keycode[charvar];
						keycode_num=0;
						intvar=(((unsigned int )keycode_temp[2])<<8)+(unsigned char )keycode_temp[3];
					}while(intvar!=0);
					T1_stop();
					break;
				case 0x4 :		//摇杆向左
					dir_horizon=1;
					T0_start();
					do
					{
						while(!keycode_num)
							WDT_cls();
						for( charvar=0;charvar<=6;charvar++)
							keycode_temp[charvar]=keycode[charvar];
						keycode_num=0;
						intvar=(((unsigned int )keycode_temp[2])<<8)+(unsigned char )keycode_temp[3];
					}while(intvar!=0);
					T0_stop();
					break;
				case 0x2 :		//摇杆向右
					dir_horizon=0;
					T0_start();
					do
					{
						while(!keycode_num)
							WDT_cls();
						for( charvar=0;charvar<=6;charvar++)
							keycode_temp[charvar]=keycode[charvar];
						keycode_num=0;
						intvar=(((unsigned int )keycode_temp[2])<<8)+(unsigned char )keycode_temp[3];
					}while(intvar!=0);
					T0_stop();
					break;
				case 0x53 :		//相机串口的一系列操作	 无控制
					break;
				default:
					break;
}	//switch结束
}	//if结束
else
{
  _nop_();		//相机处理码程序
}

break;
}  //switch结束
}	//while结束
}//main结束	





*/