Bel Cerdas Cermat 8 Grup

Schematicnya

Asm Codenya 

ORG 0000H

MOV P2, #00H                                    ;clearing all inputs

SETB P1.0                                           ;setting all outputs for common anode display

SETB P1.1

SETB P1.2

SETB P1.3

SETB P1.4

SETB P1.5

SETB P1.6

CLR P1.7

CLR P3.1

MOV R3,#0FFH

CHECK:                                              ;To check for any input                      

            MOV P1,#0FFH

            JB P2.0, TEAMA

            JB P2.1, TEAMB

            JB P2.2, TEAMC

            JB P2.3, TEAMD

            JB P2.4, TEAME

            JB P2.5, TEAMF

            JB P2.6, TEAMG

            JB P2.7, TEAMH

            SJMP CHECK

TEAMA:                                             

            MOV P1,#00001000B ; 

            ACALL BUZZER                    ;

TEAMB:

            MOV P1,#01100000B

            ACALL BUZZER

TEAMC:

            MOV P1,#00110001B

            ACALL BUZZER

TEAMD:

            MOV P1,#01000010B

            ACALL BUZZER

TEAME:

            MOV P1,#00110000B

            ACALL BUZZER

TEAMF:

            MOV P1,#00111000B

            ACALL BUZZER

TEAMG:

            MOV P1,#00100001B

            ACALL BUZZER

TEAMH:

            MOV P1,#01001000B

            ACALL BUZZER       

           

BUZZER:                                            

            CLR P1.7

            ACALL HERE            

            SETB P1.7      

            LJMP DELAY

DELAY:                                             

            JB P3.1,CHECK

            SJMP DELAY

            RET

HERE: MOV R4,#0FFH                      

D1:        MOV R5,#005H

D2:   DJNZ R5,D2

      DJNZ R4,D1

              DJNZ R3,HERE        

                        RET

                        END

Videonya

Source Code C :

#include<reg51.h>

unsigned int digi_val[10]={0x40,0xF9,0x24,0x30,0x19,0x12,0x02,0xF8,0x00,0x10};        // Hex value corresponding to the digits 0 to 9

sbit output_on_pin = P3^0;        // Enable pin to enable the seven segment.

sbit stop_pin = P3^1;        // Stop pin to reset the buzzer.

sbit buzzer_pin=P0^0;        //  Buzzer pin to sound the buzzer.

int flag;

void delay()        // Time delay function

{

    int i,j;

    for(i=0;i<200;i++)

    for(j=0;j<1275;j++);

}

void display(unsigned int current_dig)        // Function to display the resultant digit on                                                     the seven segment and sound the buzzer.

{

    P2=digi_val[current_dig];

    output_on_pin = 1;

    buzzer_pin=0;

    delay();

    buzzer_pin=1;

    while(stop_pin != 0);

}

void buzzer() //Function to monitor the input switches

{

    flag = 0;

    while(1)

    {

        while (P1 == 0xFF);

      

        while (P1 == 0xFE)        //Check if switch 1 is pressed

        {

            flag = 1;

            display(1);

        }

        while (P1 == 0xFD)        //Check if switch 2 is pressed

        {

            flag = 2;

            display(2);

        } 

        while (P1 == 0xFB )        //Check if switch 3 is pressed

        {

            flag = 3;

            display(3);

        }

        while (P1 == 0xF7 )        //Check if switch 4 is pressed

        {

            flag = 4;

            display(4);

        }

        while (P1 == 0xEF )        //Check if switch 5 is pressed

        {

            flag = 5;

            display(5);

        }

        while (P1 == 0xDF)        //Check if switch 6 is pressed

        {

            flag = 6;

            display(6);

        }

        while (P1 == 0xBF )        //Check if switch 7 is pressed

        {

            flag = 7;

            display(7);

        }

        while (P1 == 0x7F )        //Check if switch 8 is pressed

        {

            flag = 8;

            display(8);

        }

    

        P1 = 0xFF;

        stop_pin = 1;

        output_on_pin = 0;

    }

}

void main()

{

    output_on_pin=0;

    stop_pin = 1;

    P1 = 0xFF;

    buzzer();

}