Problem with ISR code AT89c51RE2

[Vish]

Hi, could someone please tell me what is wrong with the code. I want to use keyboard interrupts in AT89c51RE2 to turn on an led when someone presses the button

 

<code>

ORG 0

LJMP MAIN

 

;–ISR for INT

ORG 003BH ;Vector Address for Keyboard interrupt

setb P1.3 ;turn on LED

RETI ;return from ISR

 

ORG 0100H

MAIN:

clr p1.3

mov 0B1h,00000001b ;enable keyboard interrupt

mov 9Dh, 10000000b      ;Set KBF. 7 bit in KBF register to enable interrupt request

mov 9Ch, 10000000b       ;Set KBLS7 to enable a high level detection on Port line 7.

HERE: SJMP HERE

 

end

</code>

[abdullah]

i cannot make the hex file of the code given on this site for lcd based digital alrm clock using At89c51, i need the hex file file urgently and iam using keil software, i need the hex file urgently i am very close to the deadline. plz help

 

 

[Author]

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