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LCD display initialize

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hideaki

hideaki

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lcd initialization

How to initialize LCD display(connected as shown below) and the program. I'm using 68HC11A1P with boostrap mode. i just wanted to show any word on the LCD.

**broken link removed**
 

initialize lcd

Hi Hideaki,
Generally the LCD initialization sequence is provided in the LCD datasheet. Please refer to the datasheet. If you can provide me with the part number of LCD that you are using, I'll try to find that out.

Regards,
 

lcd initialize

@vhn
thanks. the datasheet provided is same with this acrobat reader file **broken link removed**

the LCD that I use is SGL-VCM1602A. the 68hc11a1p bootstrap mode is already working when i burn a certain program such running light, dancing, disco and so on with using Wp11.
for example(free running light):


ORG $B600

PORTA EQU $1000
PORTB EQU $4

LDX #PORTA
REPEAT LDAA #$1
AGAIN STAA PORTB,X
BSR DELAY
LSLA
BCS REPEAT
BRA AGAIN
END

DELAY LDY #$9FFF
AGAIN1 DEY
BNE AGAIN1
RTS
END
Click to expand...
the LCD is connected to the 68hc11a1p as shown in the first post.

Regards.

*Added 10oct2007
by using command with giving input low to RS, I've succeed making my LCD display showing a character. But, no matter how is the input I trying to display. it only showing a $FF character.
anyone can help?
 

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