Discussion in "8051 Discussion Forum" started by    rahuljin    Oct 11, 2007.
Sat Oct 13 2007, 03:03 AM
my circuit board is based on 0-logic i.e. it works when 0 is passed to circuit board.

i mean that when circuit is on, circuit board pins has 1 to its pins and gives 0 to all the pins of the microcontroller. therefore when i give 0 value to the pins of the circuit board, circuit board give 1 to the microcontroller.
therefore when button is not pushed, 0 is passed to the pin of the circuit board and circuit board gives 1 to the pin of the microcontroller and microcontroller calls the interrupt.

circuit board is the test board which is very similar to ur (Ajay)
(sorry for so much trouble )

[ Edited Sat Oct 13 2007, 06:02 AM ]
Sat Oct 13 2007, 06:26 AM
no there is nothing like trouble
so are you still having any problem?
Sat Oct 13 2007, 10:21 AM
yes !!! interrupt is call without pushing the button !!!

and when the button is pushed, interrupt is not called.

but i want this in correct way !!! please guide me !!
Sat Oct 13 2007, 10:54 AM
send me a good circuit.. so i can see what exactly you are doing.. ok
Sun Oct 14 2007, 12:39 PM
all problems have been resolved !!! thanks Ajay for the great help and the best forum i hav seen !!!
Sun Oct 14 2007, 01:45 PM
you're welcome we are always here for help

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