hello sir
i included the code i written for 4-bit lcd…i mean to say that i can observe ,whethet that pin is getting data as per program,on peripheral window of port0 and port 1..and again i tested using proteus….choosing microcontroller and 16×2 lcd..output is not getting.just lcd contrast light is glowing.no cursor blinking….sir can u check whether initial commanda for 4_bit lcd are correct? and solve this problem sir…i wi be thankful to you.