problems in working of alphabetic keypad interfacing

[nupoora kanade]

hello there,
me and my group members have followed your guidance on the alphabetic keypad project…
we arranged the circuit and programmed the ic but still we are not getting any results plz help plz…

[Qaisar]

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[Qaisar]

 

hi 

according to diagram i made these changes in code..

just changed port declarations….

follow this diagram .hope u will get result…

 

make sure ur controller ic working properly and code is loaded properly…

 

#define port P0

#define dataport P2  //Data port for LCD

#define key P3  // Port for Keypad

 

sbit rs = port^0;

sbit en = port^1;

 

regards.

[Author]

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