LCD Character Generator

Gary D.

I dont know if this is the apropriate section to put this in.....

However... I recently Purchased the New 4x20 Backlit LCD and it is programmed differently that the 2x16 version...

I was wondering if Parallax was going to Update the LCD character generator for this new LCD.

Thanks,
Gary

Oh yeah... Thank you Parallax for making such an Awesome LCD Display with Backlit controls.

Chris Savage

Gary,

·· The 4X20 and 2X16 Parallax LCDs do not program differently.· They are identical in how the characters are created, and the character generator works with it, I've used it.· The data statements can be dropped right into the code.· Perhaps you should post the code that isn't working for you.

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Chris Savage
Parallax Tech Support
csavage@parallax.com

Jon Williams

It's a [noparse][[/noparse]very] low-priority project at the moment, but it will probably happen at some point, and be ported to REALbasic and open-sourced after we make the translation.·

The program is still usable -- just copy the output into your program and insert the character code in the stream

From program:

Char0·· ·DATA· $00,$0A,$0A,$00,$11,$0E,$06,$00

Updated for Parallax Serial LCD:

Char0··· DATA· LcdCC0,$00,$0A,$0A,$00,$11,$0E,$06,$00

Notice that I·simply inserted the LcdCC0 constant (from the template file).· If you're using the template available on the Serial LCD product page you're ready to go as it has the customer character downloading code built in -- here's how·would·you modify it to download just one character based on the default output from LcdCC.

DnLoad_Custom_Chars:
· FOR idx1 = 0 TO·8·················· · ' download 1 character
··· READ Char0 + idx1, char············ ' get data from table
··· SEROUT TX, LcdBaud, [noparse][[/noparse]char]········· ' send to LCD
· NEXT

I hope this helps.

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Jon Williams
Applications Engineer, Parallax