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i m using micro-controller p89v51rd2 in that i m trying program of keypad which out put show on 7 segment but in that when i m hold the key than out put will be show but after relished the key out put dont show or say my out put was not hold. so any one tell me how to hold my out put.
Back to the drawing board. You have too many errors for expecting the forum to write your program for you. it would help YOU dramatically if you indented and COMMENTED your code. That it also would help someone willing to help you is a nice side effect.
Erik