gLCD help

[elios]

okay... i got the GLCD this morning, and was having a play. when it stopped working,

I managed to get text, and then when trying to get a line based on a variable it stopped. All i can do now is get a boarder and the backlight, based on the serial commands. I havent tried anything since. Here is the code:

init:
pause 1500
Serout 1 , T2400 , ( 10) : Pause 300
Serout 1 , T2400 , (20 , 1)
pause 32
loopa:

serout 1,T2400, (100,1,5,"Hello PICAXE") ' PRINT AT (Format 100,X,Y,n,n)
pause 250
debug
goto loopa

 

[elios]

it works with making shapes etc. but not text..

is there something im missing?

 

[lanternfish]

Have just read pg. 7 of the datasheet for this. The format for the PRINT AT command is:

Serout <Pin> , T2400 , (100, X , Y , I,&#8221;My text up to 20 chars&#8221

You do not seem to have a value for I.

As this chip discards any invalid commands (pg.4 hints at this), it may be disregarding the command you send due to no value for I

A bit of a guess on my part as I don't have this module to work with.

Cheers

 

[kevrus]

As Lanternfish said, you are missing an instruction.

serout 1,T2400, (100,1,5,"Hello PICAXE")

needs to be

 serout 1,T2400, (100,1,5,1,"Hello PICAXE")

or

serout 1,T2400, (100,1,5,0,"Hello PICAXE")

depending on if you want the characters to be 'positive' or 'negative'.
Try both to see the difference

 

[elios]

ahhhhh that makes sense. i thought i was missing something.

Cheers,

 

[BeanieBots]

Also, when using T type serial, you need to set the line high first or it will miss the very first command.
(only once, not before every serout).

For some example code and a bit of fun for the sake of just a few buttons and a 28X2, you might like to have a look at this.
http://www.picaxeforum.co.uk/showthread.php?t=12505