The-MCU-Communication-standard-keyboard-PS2.rar_mcu keyboard_ps2

#include <reg52.h> #include "LCD12864.h" #include "zifu8_8.h" #include <intrins.h> /*********初始化************/ void lcd_init( void ) { write_cmd_L( 0x3e ); //关显示 write_cmd_R( 0x3e ); write_cmd_L( 0xc0 ); //起始行 write_cmd_R( 0xc0 ); write_cmd_L( 0x3f ); //开显示 write_cmd_R( 0x3f ); lcd_clr( ); //清屏 } /************清屏***********/ void lcd_clr( void ) { unsigned char i,j,page; for( i = 0; i < 8; i++ ) { page = i; page |= 0xb8; write_cmd_L( page ); write_cmd_L( 0x40 ); for( j = 0; j < 64; j++ ) write_dat_L( 0 ); write_cmd_R( page ); write_cmd_R( 0x40 ); for( j = 0; j < 64; j++ ) write_dat_R( 0 ); } } /*------------------显示12864图片---------------------------*/ void Disp_Img(unsigned char code *img) { unsigned char j,k,page = 0; for( k = 0; k < 8; k++ ) { page = k; page |= 0xb8; write_cmd_L( page ); write_cmd_L( 0x40 ); for( j = 0; j < 64; j++ ) write_dat_L(img[k*128+j]); write_cmd_R( page ); write_cmd_R( 0x40 ); for(j=64;j<128;j++) write_dat_R(img[k*128+j]); } } /***********-写左命令************/ void write_cmd_L( unsigned char cmd ) { CSB = 1; CSA = 0; DI = 0; RW = 1; do { DataLine = 0xff; E = 1; _nop_(); }while( BUSY ); E = 0; RW = 0; DataLine = cmd; E = 1; _nop_(); E = 0; } /***********-写右命令**********-*/ void write_cmd_R( unsigned char cmd ) { CSB = 0; CSA = 1; DI = 0; RW = 1; do { DataLine = 0xff; E = 1; _nop_(); }while( BUSY ); E = 0; RW = 0; DataLine = cmd; E = 1; _nop_(); E = 0; } /***********写左数据***********/ void write_dat_L( unsigned char dat ) { CSB = 1; CSA = 0; DI = 0; RW = 1; do { DataLine = 0xff; E = 1; _nop_(); }while( BUSY ); E = 0; DI = 1; RW = 0; DataLine = dat; E = 1; _nop_(); E = 0; } /***********写右数据***********/ void write_dat_R( unsigned char dat ) { CSB = 0; CSA = 1; DI = 0; RW = 1; do { DataLine = 0xff; E = 1; _nop_(); }while( BUSY ); E = 0; DI = 1; RW = 0; DataLine = dat; E = 1; _nop_(); E = 0; } void write_data(unsigned char xpos,unsigned char ypos,unsigned char lcddata) { if(xpos<128) { if( ( xpos & 0x40 )== 0 ) { write_cmd_L( 0xb8 | ypos ); write_cmd_L( 0x40 | xpos); write_dat_L( lcddata ); } else { write_cmd_R( 0xb8 | ypos ); write_cmd_R( 0x40 | xpos ); write_dat_R( lcddata ); } } } /************显示一个字符************/ void lcd_putchar8x8( unsigned char x,unsigned char y,unsigned char ch ) { unsigned char i; for( i = 0; i < 8; i ++ ) { write_data( x+i, y, zifu[(ch - 0x20)*8 + i] ); // write_data( x+i, y + 1,zifu[(ch - 0x20)*8 + 8 + i] ); } } /************** 显示汉字*****************/ // x 显示列 y 显示行 void hz_disp( unsigned char x, unsigned char y, unsigned char *hz ) { unsigned char i; for( i = 0; i < 16; i++ ) { write_data( x + i, y, hz[ i] ); write_data( x + i, y + 1, hz[ 16 + i] ); } } void hz_disp32x32( unsigned char x, unsigned char y, unsigned char *hz ) { unsigned char i; for( i = 0; i < 30; i++ ) { write_data( x + i, y, hz[ i] ); write_data( x + i, y + 1, hz[ 28 + i] ); write_data( x + i, y+2, hz[57+i] ); write_data( x + i, y +3, hz[86 + i] ); } } void hz_disp128x32( unsigned char x, unsigned char y, unsigned char *hz ) { unsigned char i; for( i = 0; i < 128; i++ ) { write_data( x + i, y, hz[ i] ); write_data( x + i, y + 1, hz[ 128 + i] ); write_data( x + i, y + 2, hz[ 256 + i] ); write_data( x + i, y + 3, hz[ 384 + i] ); } } void hz_disp12x12( unsigned char x, unsigned char y, unsigned char *hz ) { unsigned char i; for( i = 0; i < 12; i++ ) { write_data( x + i, y, hz[ i] ); write_data( x + i, y + 1, hz[ 12 + i] ); } } void hz_disp12x120( unsigned char x, unsigned char y, unsigned char *hz ) { unsigned char i; for( i = 0; i < 12; i++ ) { write_data( x + i, y, ~hz[ i] ); write_data( x + i, y + 1, ~hz[ 12 + i] ); } } //画点 x = 0 -- 128 y = 0 -- 64 void set_point( unsigned char x, unsigned char y ) { unsigned char d = 0; unsigned char temp =0; unsigned char page1 = 0; temp = y % 8; if( x < 64 ) { write_cmd_L( 0xB8 + (y/8) ); write_cmd_L( 0x40 + x ); d = Rddata(); write_cmd_L( 0xB8 + (y/8) ); write_cmd_L( 0x40 + x ); d = Rddata(); write_cmd_L( 0xB8 + (y/8) ); write_cmd_L( 0x40 + x ); page1 = d | (1<<temp); write_dat_L( page1 ); } else if( x <128 ) { write_cmd_R( 0xB8 + (y/8) ); write_cmd_R( 0x40 + x -64 ); d = Rddata(); write_cmd_R( 0xB8 + (y/8) ); write_cmd_R( 0x40 + x -64 ); d = Rddata(); write_cmd_R( 0xB8 + (y/8) ); write_cmd_R( 0x40 + x - 64 ); page1 = d |(1<<temp); write_dat_R( page1 ); } else; } unsigned char Rddata( void ) { unsigned char dd = 0; DataLine = 0xff; DI = 1; RW = 1; E = 1; _nop_(); dd = DataLine; E = 0; return dd; }