السلام عليكم ...
بارك الله فيكم اريد أن افهم بداية التعريفات في هذا الكود الخاص بالكيباد و لماذا و كيف استعمل المصفوفة.....و جزاكم الله خيرا
كود:
unsigned char var1, var2, kp;
char attempts=0;
char state = 1;//start from state 1
char txt[4];
char text[] = "Combination Lock" ;//message text
char text1[]= " *Door1 On*";
char text2[]= " *Door2 On*";
char text3[]= "*Door1&2 On*";
char table[17] = {0,1,2,3,0,4,5,6,0,7,8,9,0,10,0,11,0};
void main(void) {
CMCON = 0x07 ;//PORTA to digital mode
LCD_INIT(&PORTA) ;//Pin assignment
;//RS,E,RW,D7,D6,D5,D4
LCD_Cmd(LCD_CLEAR) ;//Clear display
LCD_Cmd(LCD_CURSOR_OFF) ;//Turn cursor off
LCD_Cmd(LCD_SECOND_ROW) ;//Move to ROW2 for rest of program
//Seup Keypad on PORTB
Keypad_Init(&PORTB) ;// Initialize Keypad on PORTB
LCD_OUT(1,1,text) ;//Print welcome message
while(1) { //while ever loop
switch(state){ //check the current state
case 1:
LCD_Cmd(LCD_CLEAR) ;
LCD_out(1,1,text);
LCD_out(2,1,"EnterPass:");
while(!keypad_Read()){} //wait for key1 press
Delay_ms(10) ;//debounce time
kp = Keypad_Released() ;//wait for release
var1=kp; //store var1 into kp
var1=table[kp];
ByteToStr(var1,txt);
Lcd_Out_Cp(txt);
state = 2;
break;
case 2:
if(kp==15) state=1; //go back state 1 when kp = # (enter key)
else if(kp==13) state=1;//go back state 1 when kp = * (clear key)
else
state = 3;//go to state 3 get key2
break;
case 3:
while(!keypad_Read()){} //wait for key2 press
Delay_ms(10) ;//debounce time
kp = Keypad_Released() ;//wait for release
var2=kp;//store var2 into kp
var2=table[kp];
ByteToStr(var2,txt);
Lcd_Out_Cp(txt);
state=4;
break;
case 4:
if(kp==15) state=1;//enter key goes back state 1
else if(kp==13) state=1;//clear key goes back state 1
else
state = 5;//continue goes to state 4
break;
case 5:
while(!keypad_Read()){} //wait for enter key press
Delay_ms(10) ;//debounce time
kp = Keypad_Released() ;//wait for release
state = 6;
break;
case 6:
if(kp==13)
state =1; //clear goes back to s1
else if(kp==15)
state = 7;//enter key goes to state 7
else state = 5;
break;
case 7:
if (var1==0 && var2==5)//comparing for door1
state = 12; //goes state 11 open door1
else state =8;
break;
case 8:
if (var1==2 && var2 == 8)//comparing for door2
state = 13;//goes to state 9 for door 2
else state=9;
break;
case 9:
if(var1==8 && var2 == 2) //comparing foor door3
state = 14; //goes to state 15 for door 3
else state =10;//goes next state
break;
case 10:
if (var1==3 && var2 == 3)
state = 15;//goes to state 14 for door1 & 2
else
state =11;
break;
case 11:
LCD_OUT(2,1,"**Invalid Code**") ;
attempts++; //increment attempts
kp+=attempts;//kp = kp + attempts
if(attempts < 3) //attempts less than 3 times
state=1; //go state 1
else
state=16;
while(!keypad_Read()){} //wait for enter key press
Delay_ms(10) ;//debounce time
kp = Keypad_Released() ;//wait for release
LCD_Cmd(LCD_CLEAR);
break;
case 12://open door1 for 5secs
LCD_Cmd(LCD_CLEAR);
Lcd_out(2,1,text1) ;
Lcd_out(1,1,text);
//turn door1 led on
PORTA.F4=1;
PORTB.f4=1;
PORTB.F7 = 0;
PORTB.F6 = 0;
PORTB.F5 = 0 ;
Delay_ms(5000); //delay 5secs
//turn door1 led off
PORTA.F4 = 0;
LCD_Cmd(LCD_CLEAR) ;
attempts=0;
state=1;
break;
case 13: //open door2 for 5secs
LCD_Cmd(LCD_CLEAR);//clear display
LCD_OUT(2,1,text2);
Lcd_out(1,1,text) ;
//turn door2 led on
PORTA.F4=1;
PORTB.F5=1;
PORTB.f4=0;
PORTB.f6=0;
PORTB.f7=0;
Delay_ms(5000);
PORTA.F4 = 0 ;//turn door2 led off
LCD_Cmd(LCD_CLEAR);
attempts=0;
state =1;
break;
case 14: //open door3
LCD_Cmd(LCD_CLEAR);
LCD_OUT(2,1," *Door3 On*");
Lcd_out(1,1,text) ;
PORTA.F4=1;
PORTB.F4=0;
PORTB.F5=0;
PORTB.f6=1;
PORTB.f7=0;
Delay_ms(5000);
PORTA.F4 =0;
LCD_Cmd(LCD_CLEAR);
attempts=0;
state =1;
break;
case 15: //open door1 and door2
LCD_Cmd(LCD_CLEAR);
LCD_OUT(2,1,text3);
Lcd_out(1,1,text) ;
PORTA.F4=1;
PORTB.F4=1;
PORTB.F5=1;
PORTb.f6=0;
PORTb.f7=0;
Delay_ms(5000);
PORTA.F4 = 0 ;
LCD_Cmd(LCD_CLEAR);
attempts=0;
state =1;
break;
default:// must be a bad attempts
LCD_OUT(2,1," **Alarm On**");
LCD_OUT(1,1,text);
PORTA.F4=1;
PORTB.F4=0;
PORTB.F5=0;
PORTb.f6=0;
PORTb.f7=1;
Delay_ms(5000);
PORTA.F4=0;
LCD_Cmd(LCD_CLEAR);
attempts=0;
state = 1; //goes to state 1
break;
}
}
}
أستشارة من ذوي الخبرة في سي++
