Discussion in "Project Help" started by    star    Dec 29, 2007.
Sat Dec 29 2007, 08:38 pm
#1
I write an assembly program for LCD that shows 2 sentence .I need it's shematic in proteus but I can't do it.I should do it for tomorrow with 2*20 Lcd and 8051 microcontroller.I try but I can't do it.thanks
Sat Dec 29 2007, 08:40 pm
#2
org
mov A,#38H
ACALL command
mov A,#0EH
ACALL command
mov A.#01H
ACALL command
mov A,#06H
ACALL command
mov A,#80H
ACALL command
mov A,#'8'
ACALL Data_Display
mov A,#'0'
ACALL Data_Display
mov A,#'5'
ACALL Data_Display
mov A,#'1'
ACALL Data_Display
mov A,#''
ACALL Data_Display
mov A,#'m'
ACALL Data_Display
mov A,#'i'
ACALL Data_Display
mov A,#'c'
ACALL Data_Display
mov A,#'r'
ACALL Data_Display
mov A,#'o'
ACALL Data_Display
mov A,#'c'
ACALL Data_Display
mov A,#'o'
ACALL Data_Display
mov A,#'n'
ACALL Data_Display
mov A,#'t'
ACALL Data_Display
mov A,#'r'
ACALL Data_Display
mov A,#'o'
ACALL Data_Display
mov A,#'l'
ACALL Data_Display
mov A,#'l'
ACALL Data_Display
mov A,#'e'
ACALL Data_Display
mov A,#'r'
ACALL Data_Display


mov A,#C8H
ACALL command
mov A,#'I'
ACALL Data_Display
mov A,#'A'
ACALL Data_Display
mov A,#'U'
ACALL Data_Display
mov A,#'T'
ACALL Data_Display


Here:           SJMP Here

command:        ACALL Ready
                mov P1,A
                CLR P2.0
                CLR P2.1
                SETB P2.2
                CLR P2.2
                RET

Date_Display:    ACALL Ready
                 mov P1,A
                 SETB P2.0
                 CLR P2.1
                 SETB P2.2
                 CLR P2.2
                 RET

Ready:           SETB P1.7
                 CLR P2.0
                 SETB P2.1

Back:            CLR P2.2
                 SETB P2.2
                 JB P1.7,Back
                 RET
          
                 END


[ Edited Sun Dec 30 2007, 12:05 am ]
Sat Dec 29 2007, 08:44 pm
#3
what are u saying?? u wrote the program and dont have an idea about schematic?? how is it possible
Sat Dec 29 2007, 08:55 pm
#4
LCD data pins connected to P1, RS to P2.0,RW to P2.1 and E to P2.2 :-|
Sat Dec 29 2007, 09:02 pm
#5
I know that LCD pin where connect!!! microcontroller pin I means!!! and some of them I know but I can not find in proteus!!!!!
Sun Dec 30 2007, 12:06 am
#6
look for LM032L in device list.. it has same pinouts and working as HD44780 character based LCDs.

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