Re: lcd interfacing


i hav been able to programmed lcd and able to work through it by delays
& polling for busy flag.i need to interface one keypad & lcd to my
microcontroller p89lpc935.i am getting output on lcd when i press keys
on the keypad & output is correct also.but i am not able to do the same
through interrupt programming of keypad.i have enabled appropriate bits
for interrupt programming.

also i am able to do keypad through interrupt & watch its output on my
hyperterminal window .......but it is not showing on lcd.

can u suggest reason for the same

.

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