source4.c

PS2键盘的使用,7290键盘的使用,怎么用红外来解码哟,大家不妨看看嘛,说不定有所帮助哟?

/*在以前的程序上吸取成功大侠的营养,终于完成7290键盘,红外,和PS2键盘的键值显示
/*在这个程序里设了一个软件复位键,即7290键盘的F3和PS2的ENTER长按.
/*PS2的键值未加处理,可根据需要对健值进行处理,如设第二功能键之类
/*使用了奇偶校验,数据一般比较正确
/*由于用中断没有实现,所以是用的捕获1,需用跳线把PS2的中断接到P1.3
/*左边两位数码管用来读取原始键值,可把获得的值填入键值表中获得新键值
****************************************************************************/ 

#include <c8051f020.h> // SFR 声明
#include <intrins.h>
/*------------------------------------------------------------------------------*/
#define  CHIP_24C02      0xA0          //AT24C02从器件自身寻址地址.
#define  CHIP_7290       0x70          //ZLG7290从器件自身寻址地址.
#define  CHIP_8563       0xA2          //PCF8563从器件自身寻址地址.
#define  KEY             0x01          //普通键键值寄存器器件子地址
#define  RCNT            0x02          //普通键连击计数器器件子地址
#define  FKEY            0x03          //功能键键值寄存器器件子地址
#define  CBUF0           0x07          //命令缓冲区0
#define  CBUF1           0x08          //命令缓冲区1
#define  FLASH           0x0C          //闪烁控制寄存器
#define  SCANNUM         0x0D          //显示位数控制寄存器 
#define  F0              0xfe          //功能键键值定义
#define  F1              0xfd
#define  F2              0xfb
#define  F3              0xf7
#define  DEFPS2PUSHCOUNT 0x0A			//长按时间

unsigned char xdata Ir_Data[]={0};

unsigned char code  S[8]={0x17,0x16,0x15,0x14,0x13,0x12,0x11,0x10}; 
                                 //各位数码管对应器件子地址，0x17对应最右边一位，
								 //0x10对应最左边一位。
unsigned char code  SMGNUM[]={0xfc,0x60,0xda,0xf2,0x66,0xb6,0xbe,0xe0,//**********/
                              0xfe,0xf6,0xee,0x3e,0x9c,0x7a,0x9e,0x8e,//**********/
							  0x02,0x0a,0x2a,0x3a,0x6e,0x00};//*******************/
							     	//共阴数码管各显示数字对应代码0--F,-,n,r,o,,H**/

sbit ZLG7290RES = P3^2;
sbit Reset7290 	= P2^7;
sbit PS2DATA	= P3^1;
sbit PS2CLOCK	= P1^3;
unsigned char xdata  key,j =0;
bit  key_sign;                         //按键标志

/*-------------------------------------------------------------------------------*/                          
unsigned char Bit_Cnt;
unsigned char temp;
unsigned char Irdata;
unsigned char WORD;                     //保存被收/发的数据字节
unsigned char WORDADR;                  //保存被传送的数据在器件中的地址
unsigned char SMBMODE;                  //SENDMODE作读/写控制字  
unsigned char SMB_num;                  //SMB0一次读写字节数控制变量                   
bit  SM_BUSY;                           //忙碌标志位

/*-------------------------------------------------------------------------------*/        
void delay_ms( unsigned int count);     //延时
void Init_Device(void);                 //系统初始化
void SMBUS_ISR (void);                  //中断服务程序
char SLA_READ(char chip,char wordadr);   
void SLA_WRITE(char chip,char wordadr, char word);
/*-------------------------------------------------------------------------------*/

/*-------------------------------------------------------------------------------*/
struct Keyboard_Information
{	
	unsigned char PS2KeyCount;//脉冲计数
	unsigned char PS2KeyExtFlage;
	unsigned char PS2KeyTemp;
	unsigned char PS2KeyPopError;//出错类别
	unsigned char PS2KeyPushCount;
	unsigned char PS2KeyMessage;
	unsigned char PS2KeyVal;
}PS2Buffers;
/*---------------------------------------------------------------------------------*/
void main (void)
{
    unsigned char check;               // 测试用变量
	WDTCN = 0xde;                      // 关闭看们狗
    WDTCN = 0xad;
    Init_Device();                     //系统初始化
    SM_BUSY = 0;                       //  SM_BUSY是忙碌标志位
    SI = 0;                            //SM_BUSY中断标志位  
	ZLG7290RES =0;
	Reset7290 =0;
    delay_ms(20);
	Reset7290 =1;
	ZLG7290RES =1;
	delay_ms(2);
	SLA_WRITE(CHIP_7290,SCANNUM,0x07);
    delay_ms(2);
	SLA_WRITE(CHIP_7290,CBUF0,0X70); 
	SLA_WRITE(CHIP_7290,CBUF1,0X00);
	delay_ms(2);
	SLA_WRITE(CHIP_7290,FLASH,0X00);
	CR =1;  
    while(1)
    { Reset7290 =1;
	   if(key_sign ==1)                 //键值显示
	   {	CR =0;
	       key_sign =0;
		   check =Ir_Data[3];
		   switch (check)
		   {
		      case F0:			
			     Ir_Data[3] =0xF0;
				 break;
              case F1:
			     Ir_Data[3] =0xF1;
				 break;
              case F2:
			     Ir_Data[3] =0xF2;
				 break;
              case F3:
			     Ir_Data[3] =0xF3;
				 RSTSRC	  |= 0x02;//软件复位
                 break;
              default:
			     break;
            }
		   if(check !=0xFF)
		   {	ZLG7290RES =1;	 
		   		P5 =Ir_Data[2];	//**红外校验不外乎字节取反或重发
			     temp =check;//**通过观察这四组数据即可得到检验的方法.
				 SLA_WRITE(CHIP_7290,S[0],SMGNUM[Ir_Data[0]/16]);
				 delay_ms(1);
				 SLA_WRITE(CHIP_7290,S[1],SMGNUM[Ir_Data[0]%16]);
				 delay_ms(1);
			     SLA_WRITE(CHIP_7290,S[2],SMGNUM[Ir_Data[1]/16]);
				 delay_ms(1);
				 SLA_WRITE(CHIP_7290,S[3],SMGNUM[Ir_Data[1]%16]);
				 delay_ms(1);
			     SLA_WRITE(CHIP_7290,S[4],SMGNUM[Ir_Data[2]/16]);
				 delay_ms(1);
				 SLA_WRITE(CHIP_7290,S[5],SMGNUM[Ir_Data[2]%16]);
				 delay_ms(1);
			     SLA_WRITE(CHIP_7290,S[6],SMGNUM[Ir_Data[3]/16]);
				 delay_ms(1);
				 SLA_WRITE(CHIP_7290,S[7],SMGNUM[Ir_Data[3]%16]);
				 delay_ms(1);
				 
            }CR =1;
         }
      }
   	   
 }






void PCA0_INT (void) interrupt 9
{
	unsigned char i, key;
	unsigned  char code PS2TAB[] = 
		{			//20键PS2小键盘键码表
  			0x70,	//0
  			0x69,	//1
  			0x72,	//2
  			0x7A,	//3
  			0x6B,	//4
  			0x73,	//5
  			0x74,	//6
  			0x6C,	//7
  			0x75,	//8
  			0x7D,	//9
  			0x0B,	//F6
			0x77,	//NumberLock
  			0x79,	//加
  			0x7B,	//减
  			0x7C,	//乘
  			0x4A,	//除
  			0x66,	//Bksp
  			0x76,	//Esc
  			0x71,	//Del.
  			0x5A,	//Enter
  			
  		};
	static unsigned char oldFall;
	unsigned char temp,newFall;
	EA =0;					//**关总中断,清中断标志位,此步骤不可少	
	ZLG7290RES =0;				//置指示
	if(CCF0 ==1)					//红外解码处理
	{
	CCF0 =0;	
	newFall =PCA0CPH0;				//读取捕获寄存器的高八位数
	temp =newFall-oldFall; 	//计算脉冲加间隔的时间
	oldFall =newFall;
	
	if(temp>=6 && temp<11) // "0"码
	{temp=0;}
	
	else if(temp>10 && temp<=0x15) //“1”码
	{temp=1;}
	else if(temp>=0x59 && temp<=0x65) //引导码信号
	{
		Bit_Cnt		=0;
		Ir_Data[0]	=0;
		Ir_Data[1]	=0;
		Ir_Data[2]	=0;
		Ir_Data[3]	=0;
		EA =1;ZLG7290RES =1;return; 		//返回，等待下次开始接收
	}	
	else { Bit_Cnt =0;EA =1;ZLG7290RES =1;return;	} 	//干扰信号
	
	
	Bit_Cnt++;


	switch(Bit_Cnt)
	{	case 8:					//第一字节数据
			Ir_Data[0] =Irdata;
			Ir_Data[0] =Ir_Data[0]|(unsigned char)temp;
			Ir_Data[0] =_crol_(Ir_Data[0],8);//红外编码低位在前
			Irdata=0;
			break;
		case 16:				//第二字节数据
			Ir_Data[1] =Irdata;
			Ir_Data[1] =Ir_Data[1]|(unsigned char)temp;
			Ir_Data[1] =_crol_(Ir_Data[1],8);
			Irdata=0;
			break;
		case 24:				//第三字节数据	
			Ir_Data[2] =Irdata;
			Ir_Data[2] =Ir_Data[2]|(unsigned char)temp;
			Ir_Data[2] =_crol_(Ir_Data[2],8);
			Irdata=0;
			break;
		case 32:				//第四字节数据
			Ir_Data[3] =Irdata;
			Ir_Data[3] =Ir_Data[3]|(unsigned char)temp;
			Ir_Data[3] =_crol_(Ir_Data[3],8);
			Bit_Cnt =0;key_sign =1;
			break;
		default:
			break;
	}
	Irdata =Irdata|(unsigned char)temp;
	Irdata =Irdata<<1;
	}

	if(CCF1 ==1)//PS2键盘处理
	{
	CCF1 =0;
  	if (PS2Buffers.PS2KeyCount ==0)
	{				//PS2起始位测试
    	if (!PS2CLOCK && !PS2DATA)
		{			//低电平是起始位
      		if (PS2Buffers.PS2KeyExtFlage !=0xF0)
			{
        		PS2Buffers.PS2KeyTemp =0;
        		PS2Buffers.PS2KeyExtFlage =0;
        		PS2Buffers.PS2KeyPopError =0;
      		}
      		PS2Buffers.PS2KeyCount++;			//脉冲计数
    	}
    	else PS2Buffers.PS2KeyPopError =0xEB;	//置键起始位错误号0xeb
  	}
  	else if (PS2Buffers.PS2KeyCount <9)
	{				//PS2数据位
    	key =PS2Buffers.PS2KeyTemp;			//取键盘缓冲区移位数据
    	key >>=1;
    	if (PS2DATA) key |=0x80;
    	PS2Buffers.PS2KeyTemp =key;
    	PS2Buffers.PS2KeyCount++;				//脉冲计数
  	}
  	else if (PS2Buffers.PS2KeyCount ==9)
	{				//PS2数据奇校验
    	ACC = PS2Buffers.PS2KeyTemp;			//取键盘缓冲区移位数据(C51取偶校验位)
    	if (P != PS2DATA) PS2Buffers.PS2KeyCount++;	//奇校验正确,脉冲计数
    	else
		{//PSW.0为奇偶标志位,当ACC中个位和为奇数时该位为1
     	 	PS2Buffers.PS2KeyPopError =0xEC;	//置键奇校验位错误号0xec
      		PS2Buffers.PS2KeyCount =0;			//脉冲计数归零
   	 	}
  	}
  	else if (PS2Buffers.PS2KeyCount ==10)
	{				//停止位
    	key = PS2Buffers.PS2KeyTemp;		//取键盘缓冲区移位数据
    	Ir_Data[0]=key;
		PS2Buffers.PS2KeyCount =0;			//脉冲计数归零