What is the init code for 1 X 16 LCD?

[Navid T]

about 1 X 16 LCD

hello
whats init code for "1 X 16" LCD?
thank you
Navid

 

[glenjoy]

about 1 X 16 LCD

Init code is the same with 2x16 LCD, limit is that you cannot use the 2nd row because your LCD hardware is only 1x16.

 

[GrandAlf]

Re: about 1 X 16 LCD

These are usually electrically configured as 2x8 with the second row starting at 0x40.

 

[jojokatada]

Re: about 1 X 16 LCD

hello
whats init code for "1 X 16" LCD?
thank you
Navid

what do you mean? intial for programming the LCD for display
i guess in any language the LCD is quite slow so it must be giving some delay for the LCD to initalizaiton usally 500 us

 

[JFDuval]

Re: about 1 X 16 LCD

Hello!

Here is my code for 16x1:

//fonction d'initialisation de l'écran
void initlcd (void)
{
   LCDdata = 0b00000000;   //toutes les pins de données à 0
   LCDrw = 0;
   LCDenable = 0;         //enable à 0
   LCDrs = 0;            //Register Select à 0 (configuration)   

   longwait;

   //display ON
   LCDdata = 0b00001111;
   wait;
   LCDenable = 1;
   wait;
   LCDenable = 0;
   wait;

   // mode 8 bit
   LCDdata = 0b00000001;   
   wait;
   LCDenable = 1;
   wait;
   LCDenable = 0;
   wait;

   // effacer l'écran
   LCDdata = 0b00111000;   
   wait;
   LCDenable = 1;
   wait;
   LCDenable = 0;
   wait;
}

//fonction pour choisir entre quelle ligne d'écran
void line (int x)
{
	if (x == 1)
	{
	    //set display adress au début de l'écran (ligne 1)
   	    LCDrs = 0;
 		LCDrw = 0;
		LCDdata = 0x80;   
  		wait;
 		LCDenable = 1;
		wait;
   		LCDenable = 0;
   		wait;
	}

	if (x == 2)
	{
		//set display adress au 9e charactère (ligne 2)
   	    LCDrs = 0;
		LCDrw = 0;
       	LCDdata = 0xC0;   
   		wait;
   		LCDenable = 1;
   		wait;
   		LCDenable = 0;
   		wait;
	}
}

//configuration de l'écran (efface, home, etc)
void configuration (int config)
{
	if (config == 1)
	 {
		//efface l'écran
   	    LCDrs = 0;
		LCDdata = 0b00000001;   
  		wait;
 		LCDenable = 1;
		wait;
   		LCDenable = 0;
   		wait;	
	 }

	if (config == 2)
	 {
		//curseur et écran home
		LCDrs = 0;
		LCDdata = 0b00000011;   
  		wait;
 		LCDenable = 1;
		wait;
   		LCDenable = 0;
   		wait;	
	 }

	if (config == 3)
	 {
		//curseur ON
		LCDrs = 0;
		LCDdata = 0b00001111;   
  		wait;
 		LCDenable = 1;
		wait;
   		LCDenable = 0;
   		wait;
	 }

	if (config == 4)
	 {
		//curseur OFF
		LCDrs = 0;
		LCDdata = 0b00001100;   
  		wait;
 		LCDenable = 1;
		wait;
   		LCDenable = 0;
   		wait;
	 }
}[quote]

Hope this help!

JFDuval

[/code]

 

[fuzzy]

Re: about 1 X 16 LCD

8051 code for 2*40 character lcd.11.0592MHZ XTAL.

LCD_E BIT P2.7 ;LCD ENABLE
LCD_RW BIT P1.7 ;LCD RW
LCD_RS BIT P1.6 ;LCD RS
LCD_BF BIT P0.7 ;LCD BUSY


;********
LCD_INIT:
;********
CALL DELAY5MS
CALL DELAY5MS
CALL DELAY5MS
MOV A,#00110000B ;FONCTION SET 8 BIT DATA
CALL LCD_C_WRITE
CALL DELAY5MS
MOV A,#00110000B
CALL LCD_C_WRITE
CALL DELAY100MIC
;BUSY
MOV A,#00110000B
CALL LCD_C_WRITE
MOV A,#00111000B ;2 LINE FONT 5*10
CALL LCD_C_WRITE
MOV A,#00001100B ;DISPLEY ON,NO CURSER,NO BLINK CHR
CALL LCD_C_WRITE
MOV A,#00000001B ;CLEAR ALL DISP CURSOR HOME
CALL LCD_C_WRITE
MOV A,#00000110B ;AUTO INC,NO SHIFT
CALL LCD_C_WRITE
RET

;********
LCD_BUSY:
;********
SETB LCD_BF
SETB LCD_RW
CLR LCD_RS
SETB LCD_E
CALL DELAY10MICROSEC
;ıIF BIT7=1 LCD BUSY
WAIT:
JB LCD_BF,WAIT
CLR LCD_E
RET
;********
LCD_C_WRITE:
;********
;INPUT ACC
CLR LCD_RW
CLR LCD_RS
SETB LCD_E
CALL DELAY10MICROSEC
MOV P0,A ;LCD DATA
CLR LCD_E
CALL LCD_BUSY
RET
;********
LCD_WRITE:
;********
;INPUT ACC
CLR LCD_RW
SETB LCD_RS
SETB LCD_E
CALL DELAY10MICROSEC
MOV P0,A ;LCD DATA
CLR LCD_E
CALL DELAY10MICROSEC
CALL LCD_BUSY
RET
;********
POINTER_LEFT:
;********
MOV A,#00010000B
CALL LCD_C_WRITE
RET
;********
SETCURSER:
;********
CLR LCD_RS
CLR LCD_RW
SETB ACC.7
CALL LCD_C_WRITE
CALL LCD_BUSY
RET
;********
SHOWMSG:
;********
MOV R7,#20
NEXCHRM:
CLR A
MOVC A,@A+DPTR
CALL LCD_WRITE
INC DPTR
INC A
DJNZ R7,NEXCHRM
RET
;********
LCD_CLEAR:
;*****
MOV A,#01H
CALL LCD_C_WRITE
RET

 

[Navid T]

Re: about 1 X 16 LCD

when i write my program bye assembly and mov 38 for init code, only my 8 carechters are enabled but when i writ it by basic it work properly, i think its problem of my init code , how do you think?
thank you

 

[SARCO]

Re: about 1 X 16 LCD

look at this file it will help you
you have to write your first 8bit at address 0x80 and then write your next 8bit to address 0xc0
good luck

 

[Navid T]

Re: about 1 X 16 LCD

hello
thank you for your help but i cant see any file here!!! why?

 

[apple]

Re: about 1 X 16 LCD

you can go to have a look on this website.... it helps me alot.... hope it'll help you too...

www.winpicprog.co.uk

 

[SARCO]

Re: about 1 X 16 LCD

you have to login first to see the file its in pdf format