Microcontroller › 8051 › problems in working of alphabetic keypad interfacing › hi according to diagram i
October 19, 2011 at 6:46 pm #6728
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;