HOW TO BLINK AN LED USING 8051 include keil(c and hex(.a51)) and Proteus

Design circuit diagram in Proteus as bellow :-

put all component as shown in figure.

Program To Blink an led in Assembly Language

org 0000h
mov P2,#00h        ; initialize the Port2 as output port
top: cpl P2.0         ; compliment the bit
acall delay             ; call delay procedure
sjmp top               ; make this operation to run repeatedly

delay:
mov R1,#010h     ; initialize the R1 register with an immediate value 10h = 16d
mov R0,#0FFh     ; load R0 with FFh value to repeat the loop for 256 times
back: DJNZ R0    , back ;internal loop repeates 256 times
DJNZ R1,back     ;external loop repeates 16 times
RET
End

Program To Blink an led in c

#include
sbit LED = P2^0;            // define Port2 pin as an LED
void delay(int);

void main()
{
while(1)                         // infinite loop
{
LED = ~LED;              // toggle LED
delay(10000);
}                                 // end of while loop


}                                // end of main

void delay(int i)
{
for(;i>0;i--);

}