Serial LCD is Killing Me! Just garbage

[mslaney]

OK, this is what I came up with to write the line number on their repective lines. How do I make this more elegant/neater? A counter loop for the line number maybe?


'Chip registers and inits
cmcon = 7
trisa = %00000000
trisb = %00000000
porta = $00
portb = $00

'Vars and Cons
screen var portb.0


main:

pause 500 'wait for the LCD to startup

serout screen,n9600,[$FE,12,4,1] 'clear the screen position and hide cursor
serout screen,n9600,["Line 1"] 'Print on line 1
pause 500
serout screen,n9600,[$FE,12,4,1,10] 'Clear screen and position to line 1
serout screen,n9600,["Line 2"] 'print on line 2
pause 500
serout screen,n9600,[$FE,12,4,1,10,10] 'Clear screen and position cursor to line3
serout screen,n9600,["Line 3"] 'Print on line 3
pause 500
serout screen,n9600,[$FE,12,4,1,10,10,10] 'Go to line 4
serout screen,n9600,["Line 4"] 'Print on line 4


''Just make sure the chip is running:
'high portb.3
'pause 100
'low portb.3
'pause 100

goto main ' loop

[muddy0409]

I also have had problems with serial LCD coms. I have tried serial modules form 4 different manufacturers and have spent hours trying to make the buggers work. Well, NO MORE!!!
In utter frustration, I tried the setup exactly as listed in the MEL manual for connecting to an LCD direct. First time success. I know there is a lot of talk about the extra lines required, but, is it cheaper to move up 1 size in PIC for a cuppla bucks, or add a serial adaptor for a cuppla bucke. No arguement. I will be using the book's example from here on in. It really is so simple.

[mslaney]

Well, it certainly was not a cuppla bucks for the display and backpack!! Seetron.com ~$50.

However, the reason I got it was to learn how to use it. Now that I figured it out, I can use smaller packages even if it doesn't matter. I think of it as tuition!

I was using a parallel display and the LCD out commands and it *was* much easier after adjusting the defines. Oh, and the display was as cheap as the pic!!

[Dwayne]

Hello Mike Slaney,

MS>>Well, it certainly was not a cuppla bucks for the display and backpack!! Seetron.com ~$50. <<

Yeah... I couldn't see myself paying that much for a backpack...For less than 15 dollars. Used a cheapo LCD and a 648A for the driver.

MS>>However, the reason I got it was to learn how to use it.<<

Thats the fun part.... I have a very good friend...He has a quote...that goes something like this:

"We purchase and put together 5 and 10 dollar PIC projects to learn to use our 1000s of dollars equipment."

Dwayne