12f675_fuse_about_to_blow!

[LEDave]

Hi mackrackit,

Well I managed to get the program to do what I wanted it to do, namely run through four custom characters then place the four custom characters one in each corner of the display ( program code below).

All the info to do this was found within the LCD link you posted However, I can't really see how the CONSTANT:

Row1  CON 128

works, what does the 128 part of it mean? I guess it must relate to LCD position HEX 0000 DDRAM Address for a 4 Line LCD but can't relate that to a CGRAM character position.

ANSEL   = %00000000    'Disable analog select so ports work as digital i/o.
CMCON0  = %00000111    'Disable analog comparators.
TRISA   = %00000000    'Set PORTA as OUTPUT.
PORTA   = %00000000    'Set PORTA pins all low.
TRISC   = %00000000    'Set PORTC as OUTPUT.
PORTC   = %00000000    'Set PORTC pins all low.

DEFINE LCD_DREG     PORTC    'PORTC.0 WILL CONNECT TO DB4, PORTC3 TO DB7
DEFINE LCD_DBIT     0
DEFINE LCD_RSREG    PORTC
DEFINE LCD_RSBIT    4        'PORTC.4 CONNECT TO LCD PIN4
DEFINE LCD_EREG     PORTC
DEFINE LCD_EBIT     5        'PORTC.5 CONNECT TO LCD PIN6
DEFINE LCD_BITS     4
DEFINE LCD_LINES    4
DEFINE LCD_COMMANDUS 2000     
DEFINE LCD_DATAUS 150

Row1  CON 128
Row2  CON 192
Row3  CON 148
Row4  CON 212

DEFINE OSC 4
LCDOUT $FE,$40,$02,$06,$1a,$1a,$1a,$06,$02,$00 'FIRST  CHAR 0 (Battery)
LCDOUT $FE,$48,$06,$0f,$0f,$0f,$0f,$0f,$0f,$00 'Second CHAR 1 (Speaker)
lcdout $FE,$50,$1F,$11,$15,$17,$17,$15,$11,$1F 'Third  CHAR 2 (Copywrite)
lcdout $FE,$58,$00,$0a,$0a,$00,$00,$11,$0e,$00 'Fourth CHAR 3 (Smiley)
MAIN:
PAUSE 500
LCDOUT $FE,1,0 'First character
pause 1000
LCDOUT $FE,1,1 'Second character 
pause 1000
lcdout $FE,1,2 'Third character
PAUSE 1000
lcdout $fe,1,3 'Fourth Character 
pause 1000 
LCDOUT $FE,Row1+0,0 'Places CHAR 0 Top LHS of display.
PAUSE 250
lcdout $FE,ROW1+19,1 'Places CHAR 1 Top RHS of display.
PAUSE 250
LCDOUT $FE,Row4+0,2  'Places CHAR 2 Bottom LHS of display. 
PAUSE 250
LCDOUT $FE,Row4+19,3 'Places CHAR 3 Bottom RHS of display.
PAUSE 4000
GOTO MAIN

Dave (lovin his LCD).