Hello EveryBody,
I am working on LCD (16x2) and i have built some of my ideas about LCD programming but i am using Assembly language for my LCD, well as all things was going sweet so as every programmer is having something wrong ... (in starting) my problem specification is that i am using that LCD in 8-bit mode and i have connected my AT89C2051 (with some pull-ups)
P1 DB
P3.7 RS
P3.5 RW
P3.4 E
and i have interfaced my LCD with my MCu but my problem is that i am getting the LCD not working ... (i dont know why) .... i have interfaced my LCD but there only little bit of contrast....i mean to say that there nothing visible... even i move my 10K-ohm-POT to the ground.....

and i have done some programming, so could any one please help me .... (i am really stucked)
any help will be appritiatable.....

		ORG 0000H
		LJMP MAIN
		ORG 0030H
		RS EQU P3.7
		RW EQU P3.5
		EN EQU P3.4
MAIN:		LCALL DELAY
		CLR EN
		MOV DPTR,#MYCOM
		LCALL LCD_INI
		MOV DPTR,#MYDATA
		LCALL LOOP
		MOV A,#0C9h
		LCALL COM
		LCALL DELAY
		MOV DPTR,#MYDAT2
		LCALL LOOP
AGAIN:		SJMP AGAIN
;========================================
COM:		MOV P1,A
		CLR RS
		CLR RW
		SETB EN
		LCALL DELAY
		CLR EN
		RET
;========================================
DATAW:		MOV P1,A
		SETB RS
		CLR RW
		SETB EN
		LCALL DELAY
		CLR EN
		RET
;========================================
DELAY:		MOV R6,#100
HERE2:		MOV R7,#250
HERE:		DJNZ R7,HERE
		DJNZ R6,HERE2
		RET
;========================================
LCD_INI:	CLR A
		MOVC A,@A+DPTR
		LCALL COM
		LCALL DELAY
		JZ GO_B1
		INC DPTR
		SJMP LCD_INI
GO_B1:		RET
;========================================
LOOP:		CLR A
		MOVC A,@A+DPTR
		LCALL DATAW
		LCALL DELAY
		INC DPTR
		JZ GO_B2
		SJMP LOOP
GO_B2:		RET
;========================================
MYCOM:		DB 38H,0EH,06,01,84H,0
MYDATA:		DB "DAREDEVIL",0
MYDAT2:		DB "GUNS AND ROSES",0
;========================================
		END

Asif Ali "DareDevil"