generating-square-wave-using-8051-in-keil

Generating-Square-Wave-in-Keil-using-8051

8051 microcontroller project that generates a square wave on P1.0 using Timer0 Mode 1 in Keil µVision.

1.GENERATING SQUARE WAVE IN KEIL IN C

AIM:

Write a 8051 c program to generate a square wave with frequency of 50khz

APPARATUS REQUIRED

• Personal Computer
• Keil µVision Software

PROGRAM:

#include <reg51.h>

sbit sqWave = P1^0;

void main()
{
    unsigned char TH0_val = 0xFF;
    unsigned char TL0_val = 0xF6;

    TMOD = 0x01; 

    while(1)
    {
        TH0 = TH0_val;
        TL0 = TL0_val;
        TR0 = 1;          
        while(TF0 == 0);  
        TR0 = 0;          
        TF0 = 0;          
    }
}

OUTPUT:

RESULT:

Thus the 8051 C program to generate a square wave with frequency of 50khz using keil was done and shown the output.

2.GENERATING SQUARE WAVE IN KEIL IN ASSEMBLY

AIM:

Write a 8051 program to generate a square wave with frequency of 50khz

APPARATUS REQUIRED

• Personal Computer
• Keil µVision Software

PROGRAM:

CLR  P1.0          
MOV  TMOD, #01H    
AGAIN:
MOV  TL0, #0F7H  
MOV  TH0, #0FFH   
CPL  P1.0         
SETB TR0          
WAIT:
JNB  TF0, WAIT    
CLR  TR0          
CLR  TF0         
SJMP AGAIN       
END

OUTPUT:

RESULT:

Thus the 8051 prpgram to generate a square wave with the frequency of 50khz using 8051 KEIL was done and shown the output