p0902-ps2.c

单片机与PS2键盘通讯的例子

#include <STC12C5410AD.H>
#include "stdio.h" 
#include "stdlib.h" 
#include "math.h" 
#include "absacc.h" 
#include "intrins.h" 
#include "string.h"     

sbit    sce=P1^2;	//片选
sbit    res=P1^1;	//复位,0复位 
sbit    dc=P3^5;   	//1写数据，0写指令
sbit    sdin=P1^5; 	//数据
sbit    sclk=P1^7;	//时钟   	 
sbit    back_led =P3^7;	//背光
sbit    Key_Data =P2^5;
sbit    Key_CLK =P3^3; 
unsigned char IntNum = 0; //中断次数计数
unsigned char KeyV; //键值
unsigned char DisNum = 0; //显示用指针
unsigned char Key_UP=0, Shift = 0;//Key_UP是键松开标识，Shift是Shift键按下标识
unsigned char keybuf;
unsigned char disbuf[84];
unsigned char weizhi;
bit BF; //标识是否有字符被收到
bit disbit;
void LCD_init(void);
void LCD_clear(void);
void LCD_write_String(unsigned char X,unsigned char Y,char *s);
void LCD_write_char(unsigned char c);		   
void LCD_write_byte(unsigned char dt,unsigned char command);		 

//************************************************************
//*******************************************************************

unsigned char code UnShifted[58][2] = {
0x1C, 65,//'a',
0x32, 66,//'b',
0x21, 67,//'c',
0x23, 68,//'d',
0x24, 69,//'e',
0x2B, 70,//'f',
0x34, 71,//'g',
0x33, 72,//'h',
0x43, 73,//'i',
0x3B, 74,//'j',
0x42, 75,//'k',
0x4B, 76,//'l',
0x3A, 77,//'m',
0x31, 78,//'n',
0x44, 79,//'o',
0x4D, 80,//'p',
0x15, 81,//'q',
0x2D, 82,//'r',
0x1B, 83,//'s',
0x2C, 84,//'t',
0x3C, 85,//'u',
0x2A, 86,//'v',
0x1D, 87,//'w',
0x22, 88,//'x',
0x35, 89,//'y',
0x1A, 90,//'z',
0x45, 16,//'0',
0x16, 17,//'1',
0x1E, 18,//'2',
0x26, 19,//'3',
0x25, 20,//'4',
0x2E, 21,//'5',
0x36, 22,//'6',
0x3D, 23,//'7',
0x3E, 24,//'8',
0x46, 25,//'9',
0x70, 16,//'0',
0x69, 17,//'1',
0x72, 18,//'2',
0x7A, 19,//'3',
0x6B, 20,//'4',
0x73, 21,//'5',
0x74, 22,//'6',
0x6C, 23,//'7',
0x75, 24,//'8',
0x7D, 25,//'9',

0x4E, 13,//'-',
0x55, 29,//'=',
0x5D, 60,//'\',
0x29, 00,//' ',
0x54, 59,//'[',
0x5B, 61,//']',
0x4C, 27,//';',
0x52, 7,//'''',
0x41, 12,//',',
0x49, 14,//'.',
0x4A, 15,//'/',
0x71, 14,//'.',
};
unsigned char code Shifted[59][2] = {
0x1C,33,//'A',
0x32,34,//'B',
0x21,35,//'C',
0x23,36,// 'D',
0x24,37,// 'E',
0x2B,38,// 'F',
0x34,39,// 'G',
0x33,40,// 'H',
0x43,41,// 'I',
0x3B,42,// 'J',
0x42,43,// 'K',
0x4B,44,// 'L',
0x3A,45,// 'M',
0x31,46,// 'N',
0x44,47,// 'O',
0x4D,48,// 'P',
0x15,49,// 'Q',
0x2D,50,// 'R',
0x1B,51,// 'S',
0x2C,52,// 'T',
0x3C,53,// 'U',
0x2A,54,// 'V',
0x1D,55,// 'W',
0x22,56,// 'X',
0x35,57,// 'Y',
0x1A,58,// 'Z',

0x45,9,// ')',
0x16,1,// '!',
0x1E,32,// '@',
0x26,3,// '#',
0x25,4,// '$',
0x2E,5,// '%',
0x36,62,// '^',
0x3D,6,// '&',
0x3E,10,// '*',
0x46,8,// '(',	 
  
0x4e,63,// '_',
0x4E,63,// '_',
0x55,11,// '+',
0x5D,91,// '|',
0x29,00,// ' ',
0x29,00,// ' ',
0x29,00,// ' ',
0x4C,26,// ':',
0x29,00,// '',
0x41,28,// '<',
0x49,30,// '>',
0x4A,31,// '?',
0x71,14,// '.',

0x70,16,// '0',
0x69,17,// '1',
0x72,18,// '2',
0x7A,19,// '3',
0x6B,20,// '4',
0x73,21,// '5',
0x74,22,// '6',
0x6C,23,// '7',
0x75,25,// '8',
0x7D,26,// '9',
};

//******************************************************************/
//6x8.h文件：
/*-----------------------------------------------
6 x 8 font
1 pixel space at left and bottom
index = ASCII - 32
-----------------------------------------------*/
unsigned char  code font6x8[][6] =
{
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },// sp
{ 0x00, 0x00, 0x00, 0x2f, 0x00, 0x00 },// !
{ 0x00, 0x00, 0x07, 0x00, 0x07, 0x00 },// "
{ 0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14 },// #
{ 0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12 },// $
{ 0x00, 0x62, 0x64, 0x08, 0x13, 0x23 },// %	5
{ 0x00, 0x36, 0x49, 0x55, 0x22, 0x50 },// &
{ 0x00, 0x00, 0x05, 0x03, 0x00, 0x00 },// '
{ 0x00, 0x00, 0x1c, 0x22, 0x41, 0x00 },// (
{ 0x00, 0x00, 0x41, 0x22, 0x1c, 0x00 },// )
{ 0x00, 0x14, 0x08, 0x3E, 0x08, 0x14 },// *
{ 0x00, 0x08, 0x08, 0x3E, 0x08, 0x08 },// +
{ 0x00, 0x00, 0x00, 0xA0, 0x60, 0x00 },// ,
{ 0x00, 0x08, 0x08, 0x08, 0x08, 0x08 },// -
{ 0x00, 0x00, 0x60, 0x60, 0x00, 0x00 },// .
{ 0x00, 0x20, 0x10, 0x08, 0x04, 0x02 },// /
{ 0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E },// 0	   16
{ 0x00, 0x00, 0x42, 0x7F, 0x40, 0x00 },// 1
{ 0x00, 0x42, 0x61, 0x51, 0x49, 0x46 },// 2
{ 0x00, 0x21, 0x41, 0x45, 0x4B, 0x31 },// 3
{ 0x00, 0x18, 0x14, 0x12, 0x7F, 0x10 },// 4
{ 0x00, 0x27, 0x45, 0x45, 0x45, 0x39 },// 5
{ 0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30 },// 6
{ 0x00, 0x01, 0x71, 0x09, 0x05, 0x03 },// 7
{ 0x00, 0x36, 0x49, 0x49, 0x49, 0x36 },// 8
{ 0x00, 0x06, 0x49, 0x49, 0x29, 0x1E },// 9
{ 0x00, 0x00, 0x36, 0x36, 0x00, 0x00 },// :	   26
{ 0x00, 0x00, 0x56, 0x36, 0x00, 0x00 },// ;
{ 0x00, 0x08, 0x14, 0x22, 0x41, 0x00 },// <
{ 0x00, 0x14, 0x14, 0x14, 0x14, 0x14 },// =
{ 0x00, 0x00, 0x41, 0x22, 0x14, 0x08 },// >
{ 0x00, 0x02, 0x01, 0x51, 0x09, 0x06 },// ?
{ 0x00, 0x32, 0x49, 0x59, 0x51, 0x3E },// @
{ 0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C },// A		33
{ 0x00, 0x7F, 0x49, 0x49, 0x49, 0x36 },// B
{ 0x00, 0x3E, 0x41, 0x41, 0x41, 0x22 },// C
{ 0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C },// D
{ 0x00, 0x7F, 0x49, 0x49, 0x49, 0x41 },// E
{ 0x00, 0x7F, 0x09, 0x09, 0x09, 0x01 },// F
{ 0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A },// G
{ 0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F },// H
{ 0x00, 0x00, 0x41, 0x7F, 0x41, 0x00 },// I
{ 0x00, 0x20, 0x40, 0x41, 0x3F, 0x01 },// J
{ 0x00, 0x7F, 0x08, 0x14, 0x22, 0x41 },// K
{ 0x00, 0x7F, 0x40, 0x40, 0x40, 0x40 },// L
{ 0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F },// M
{ 0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F },// N
{ 0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E },// O
{ 0x00, 0x7F, 0x09, 0x09, 0x09, 0x06 },// P
{ 0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E },// Q
{ 0x00, 0x7F, 0x09, 0x19, 0x29, 0x46 },// R
{ 0x00, 0x46, 0x49, 0x49, 0x49, 0x31 },// S
{ 0x00, 0x01, 0x01, 0x7F, 0x01, 0x01 },// T
{ 0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F },// U
{ 0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F },// V
{ 0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F },// W
{ 0x00, 0x63, 0x14, 0x08, 0x14, 0x63 },// X
{ 0x00, 0x07, 0x08, 0x70, 0x08, 0x07 },// Y
{ 0x00, 0x61, 0x51, 0x49, 0x45, 0x43 },// Z
{ 0x00, 0x00, 0x7F, 0x41, 0x41, 0x00 },// [	59
{ 0x00, 0x02, 0x04, 0x08, 0x10, 0x20 },//  '\'
{ 0x00, 0x00, 0x41, 0x41, 0x7F, 0x00 },// ]
{ 0x00, 0x04, 0x02, 0x01, 0x02, 0x04 },// ^
{ 0x00, 0x40, 0x40, 0x40, 0x40, 0x40 },// _
{ 0x00, 0x00, 0x01, 0x02, 0x04, 0x00 },// '
{ 0x00, 0x20, 0x54, 0x54, 0x54, 0x78 },// a	 65
{ 0x00, 0x7F, 0x48, 0x44, 0x44, 0x38 },// b
{ 0x00, 0x38, 0x44, 0x44, 0x44, 0x20 },// c
{ 0x00, 0x38, 0x44, 0x44, 0x48, 0x7F },// d
{ 0x00, 0x38, 0x54, 0x54, 0x54, 0x18 },// e
{ 0x00, 0x08, 0x7E, 0x09, 0x01, 0x02 },// f
{ 0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C },// g
{ 0x00, 0x7F, 0x08, 0x04, 0x04, 0x78 },// h
{ 0x00, 0x00, 0x44, 0x7D, 0x40, 0x00 },// i
{ 0x00, 0x40, 0x80, 0x84, 0x7D, 0x00 },// j
{ 0x00, 0x7F, 0x10, 0x28, 0x44, 0x00 },// k
{ 0x00, 0x00, 0x41, 0x7F, 0x40, 0x00 },// l
{ 0x00, 0x7C, 0x04, 0x18, 0x04, 0x78 },// m
{ 0x00, 0x7C, 0x08, 0x04, 0x04, 0x78 },// n
{ 0x00, 0x38, 0x44, 0x44, 0x44, 0x38 },// o
{ 0x00, 0xFC, 0x24, 0x24, 0x24, 0x18 },// p
{ 0x00, 0x18, 0x24, 0x24, 0x18, 0xFC },// q
{ 0x00, 0x7C, 0x08, 0x04, 0x04, 0x08 },// r
{ 0x00, 0x48, 0x54, 0x54, 0x54, 0x20 },// s
{ 0x00, 0x04, 0x3F, 0x44, 0x40, 0x20 },// t
{ 0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C },// u
{ 0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C },// v
{ 0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C },// w
{ 0x00, 0x44, 0x28, 0x10, 0x28, 0x44 },// x
{ 0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C },// y
{ 0x00, 0x44, 0x64, 0x54, 0x4C, 0x44 },// z	 90
{ 0x00, 0x00, 0x00, 0xff, 0x00, 0x00 },// |	 91
{ 0x14, 0x14, 0x14, 0x14, 0x14, 0x14 }// horiz lines
}; 
unsigned char code han[]=
{
/*--  文字:  宁  --*/
/*--  Trebuchet MS12;  此字体下对应的点阵为：宽x高=16x16   --*/
0x00,0x90,0x8C,0x84,0x84,0x84,0x85,0x86,0x84,0x84,0x84,0x84,0x94,0x8E,0x04,0x00,
0x00,0x00,0x00,0x00,0x00,0x40,0x80,0x7F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

/*--  文字:  波  --*/
/*--  Trebuchet MS12;  此字体下对应的点阵为：宽x高=16x16   --*/
0x10,0x60,0x01,0xE6,0x00,0xF8,0x88,0x88,0x88,0xFF,0x88,0x88,0x88,0x18,0x08,0x00,
0x04,0x04,0xFF,0x40,0x30,0x8F,0x80,0x41,0x26,0x18,0x18,0x26,0x61,0xC0,0x40,0x00,

/*--  文字:  单  --*/
/*--  Trebuchet MS12;  此字体下对应的点阵为：宽x高=16x16   --*/
0x00,0x00,0xF8,0x28,0x29,0x2E,0x2A,0xF8,0x28,0x2C,0x2B,0x2A,0xF8,0x00,0x00,0x00,
0x08,0x08,0x0B,0x09,0x09,0x09,0x09,0xFF,0x09,0x09,0x09,0x09,0x0B,0x08,0x08,0x00,

/*--  文字:  片  --*/
/*--  Trebuchet MS12;  此字体下对应的点阵为：宽x高=16x16   --*/
0x00,0x00,0x00,0xFE,0x10,0x10,0x10,0x10,0x10,0x1F,0x10,0x10,0x10,0x18,0x10,0x00,
0x80,0x40,0x30,0x0F,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0xFF,0x00,0x00,0x00,0x00,

/*--  文字:  机  --*/
/*--  Trebuchet MS12;  此字体下对应的点阵为：宽x高=16x16   --*/
0x08,0x08,0xC8,0xFF,0x48,0x88,0x08,0x00,0xFE,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,
0x04,0x03,0x00,0xFF,0x00,0x41,0x30,0x0C,0x03,0x00,0x00,0x00,0x3F,0x40,0x78,0x00,

/*--  文字:  开  --*/
/*--  Trebuchet MS12;  此字体下对应的点阵为：宽x高=16x16   --*/
0x40,0x42,0x42,0x42,0x42,0xFE,0x42,0x42,0x42,0x42,0xFE,0x42,0x42,0x42,0x42,0x00,
0x00,0x40,0x20,0x10,0x0C,0x03,0x00,0x00,0x00,0x00,0x7F,0x00,0x00,0x00,0x00,0x00,

/*--  文字:  发  --*/
/*--  Trebuchet MS12;  此字体下对应的点阵为：宽x高=16x16   --*/
0x00,0x10,0x3E,0x10,0x10,0xF0,0x9F,0x90,0x90,0x92,0x94,0x1C,0x10,0x10,0x10,0x00,
0x40,0x20,0x10,0x88,0x87,0x41,0x46,0x28,0x10,0x28,0x27,0x40,0xC0,0x40,0x00,0x00,

/*--  文字:  网  --*/
/*--  Trebuchet MS12;  此字体下对应的点阵为：宽x高=16x16   --*/
0x00,0xFE,0x02,0x12,0x22,0xC2,0x22,0x1A,0x22,0x42,0x82,0x72,0x22,0xFE,0x00,0x00,
0x00,0x7F,0x08,0x04,0x03,0x00,0x03,0x0C,0x04,0x02,0x01,0x26,0x60,0x3F,0x00,0x00,