Màn hình quảng cáo ở chế độ văn bản sử dụng ma trận LED 5x7 có điều khiển bằng máy tính, chương 10 ppt

Khi kích hoạt file đó thì giao diện của ch-ơng trình sẽ xuất hiện nh- hình III.1.. Khi nhấn F1, ch-ơng trình sẽ kiểm tra qua cổng song song xem mạch ngoài đã đ-ợc cấp nguồn hay ch-a.. Nế

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Chương 10: m· nguån

//Chuong trinh dieu khien bang quang cao dung

ma tran LED 5x7

// (Do an mon hoc: Thiet ke mach Logic) //Nguoi viet: Le Minh Hung

// Nguyen Duc Linh

// Lop DT6-K43-DHBKHN

#include <conio.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <ctype.h>

#include <dos.h>

#define DataReg 0x378

#define StatusReg 0x379

#define ControlReg 0x37A

void Initialize();

void Interfacing();

void Print_Code(int code);

void ItoSofB(int i,char up[],char down[]);

void Print_Character(int column,int row,int code);

void Print_Column(int column);

void Print_Row(int row);

void Print_Cell(int column,int row,char value);

void Print_Matrix(int code);

int Out_Char(int column,int row,int code);

void Reset();

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void Power();

//

-int character[64][6]={

//character[x][0-4]: code of character'column

//character[x][5]: ASCII code

{126,17,17,17,126,65}, // 0-A {127,73,73,73,54,66}, // 1-B {62,65,65,65,34,67}, // 2-C {127,65,65,34,28,68}, // 3-D {127,73,73,73,65,69}, // 4-E {127,9,9,9,1,70}, // 5-F {62,65,73,73,58,71}, // 6-G {127,8,8,8,127,72}, // 7-H {0,65,127,65,0,73}, // 8-I {32,64,65,63,1,74}, // 9-J {127,8,20,34,65,75}, //10-K {127,64,64,64,64,76}, //11-L {127,2,12,2,127,77}, //12-M {127,4,8,16,127,78}, //13-N {62,65,65,65,62,79}, //14-O {127,9,9,9,6,80}, //15-P {62,65,81,33,94,81}, //16-Q {127,9,25,41,70,82}, //17-R {38,73,73,73,50,83}, //18-S {1,1,127,1,1,84}, //19-T {63,64,64,64,63,85}, //20-U {31,32,64,32,31,86}, //21-V {63,64,48,64,63,87}, //22-W {99,20,8,20,99,88}, //23-X {7,8,120,8,7,89}, //24-Y {97,81,73,69,67,90}, //25-Z {62,81,73,69,62,48}, //26-0 {0,66,127,64,0,49}, //27-1

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{66,97,81,73,70,50}, //28-2 {33,65,69,75,49,51}, //29-3 {24,20,18,127,16,52}, //30-4 {39,69,69,69,57,53}, //31-5 {60,74,73,73,48,54}, //32-6 {1,113,9,5,3,55}, //33-7 {54,73,73,73,54,56}, //34-8 {6,73,73,41,30,57}, //35-9 {8,8,62,8,8,43}, //36-+

{8,8,8,8,8,45}, //37 {20,8,62,8,20,42}, //38-*

{32,16,8,4,2,47}, //39-/

{20,20,20,20,20,61}, //40-=

{0,65,34,20,8,62}, //41->

{8,20,34,65,0,60}, //42-<

{0,96,96,0,0,46}, //43-.

{0,80,48,0,0,44}, //44-, {0,54,54,0,0,58}, //45-:

{0,86,54,0,0,59}, //46-;

{0,5,3,0,0,39}, //47-' {0,3,0,3,0,34}, //48-"

{0,28,34,65,0,40}, //49-(

{0,65,34,28,0,41}, //50-) {0,127,65,65,0,91}, //51-[

{0,65,65,127,0,93}, //52-]

{0,0,95,0,0,33}, //53-!

{2,1,81,9,6,63}, //54-?

{50,73,121,65,62,64}, //55-@

{20,62,20,62,20,35}, //56-#

{36,42,127,42,18,36}, //57-$

{35,19,8,100,98,37}, //58-%

{4,2,1,2,4,94}, //59-^

{54,73,85,34,80,38}, //60-&

{2,4,8,16,32,92}, //61-\

{0,0,127,0,0,124}, //62-|

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{0,0,0,0,0,32},

};

int matrix[128];

int power;

//

-void main()

{

int column=0,row=0,pos=0,i;

char scan,ch;

Interfacing();

Initialize();

for(i=0;i<128;i++)

matrix[i]=63;

for(;;)

{

Print_Column(column);

Print_Row(row);

Print_Matrix(matrix[pos]);

Print_Code(matrix[pos]);

window(5+column*2,2+row*2,5+column*2,2+row*2); if((scan=getch())==0)

{

ch=getch();

switch(ch)

{

case 59: //F1

Power();

break;

case 60: //F2

if(power==1)

Reset();

break;

case 75: //Left Arrow

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if(power==1)

{ if(pos>0) pos ;

if(column==0) {

if(row>0)

{ column=16;

row ;

} else column=1;

} column ;

} break;

case 77: //Right Arrow

if(power==1)

{ if(pos<127) pos++;

column++;

if(column>15) {

if(row<7)

{ column=0;

row++;

} else column=15;

} } break;

case 72: //Up Arrow

if(power==1)

{ if(row>0)

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{ pos=pos-16;

row ;

} } break;

case 80: //Down Arrow

if(power==1)

{ if(row<7) {

pos=pos+16;

row++;

} } break;

} // for switch(ch)

} // for if((scan=getch())==0)

else

{

ch=scan;

switch(ch)

{

case 27: //ESC

//Dua ra tin hieu tat mach ngoai (chan 17,bit3=1)

00001000b

return;

case 13: //Enter

if((row<7)&&(power==1))

{ pos=pos+(16-column);

row++;

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column=0;

} break;

default:

if((isprint(ch))&&(power==1)) {

ch=toupper(ch);

for(i=0;i<64;i++)

if(character[i][5]==ch) {

Print_Character(column,row,ch);

if(Out_Char(column,row,i)==0) {

textbackground(LIGHTGRAY);

textcolor(RED);

window(4,25,30,25);clrscr();

cprintf("Khong gui duoc ky tu

!");

} else {

window(4,25,30,25);clrscr();

} matrix[pos]=i;

break;

} if(pos<127) pos++;

if(column==15)

{ if(row<7) {

column=-1;

row++;

}

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else column=14;

} column++;

} // for if(isprint(ch))

break;

} // for switch(ch)

} // for else

}

//

-void Initialize()

{

//Dong mach ngoai: chan 17,bit3=1

outportb(ControlReg,8); // 8 = 00001000b

power=0; //Chua cho phep chuong trinh hoat

dong

textbackground(BLACK);

textcolor(WHITE);

window(16,20,18,20);clrscr();

printf("OFF");

}

//

-void Power()

{

unsigned char result;

if(power==0)

{

//Kiem tra xem chan 13 co o muc cao (bit4=1)

result=inportb(StatusReg);

if(result&16 !=0) // 16=10000b

{

//Neu bit4=1 (mach ngoai da duoc cap nguon)

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power=1; //Cho phep chuong trinh hoat dong textbackground(RED);

window(16,20,18,20);clrscr();

printf("ON");

//Dua ra tin hieu dong mach ngoai (chan 17,bit3=0)

//va thiet lap trang thai ban dau: dong bo dem 74244(chan

RAM(chan 14,bit1=1)

}

else

{

textcolor(RED);

window(4,25,30,25);clrscr();

cprintf("Chua dong nguon cho mach!");

}

else

{

//Khong cho phep chuong trinh hoat dong

power=0;

window(16,20,18,20);clrscr();

printf("OFF");

//Dua ra tin hieu tat mach ngoai (chan 17,bit3=1)

}

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//

-void Interfacing()

{

textmode(C40);

textbackground(BLUE);window(0,0,40,25);clrscr( );

textbackground(BLACK);window(5,2,37,25);clrscr ();

textcolor(BLUE);

textbackground(LIGHTGRAY);window(4,1,36,17);cl rscr();

textcolor(LIGHTGRAY);

textbackground(BLACK);window(5,2,35,17);clrscr ();