Flexible LCD driver

leevise · Joined: 05 Aug 2010 Posts: 89

Hello,
If i use the parallel connect the LCD 1602, how to use the flexible LCD driver ?
Can you give me a example for parallel connection?

And how to use the CCS's LCD.C in program? I don't understand it ,
if you use it, pls give me a example by using LCD.c driver (parallel connection).

Thank you very much!

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Here's a schematic:
http://www.oocities.org/nazlen_2000/graphics/lcd2.gif
It shows pins B6 and B7 connected to the LCD. I would recommend
that you use two other pins. The reason is that B6 and B7 are used
by the debugger (ICD2, IC3, Pickit2, Pickit3, ICD-U40, ICD-U64, etc).
You didn't say what PIC you are using. But if you have a 40-pin PIC,
it's better use Port D for the LCD connections. Just change all the
connections shown in the schematic to use PortD instead of PortB.

After you make the hardware connections between the PIC and the LCD,
you must edit the list of #define statements at the top of the Flex driver
to match those connections.

Also, if you have a board that you bought from some company,
you should post the manufacturer and model number of the board.

leevise · Joined: 05 Aug 2010 Posts: 89

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

You didn't say which pins of PortD are used to connect to the LCD upper
data bits, so I'll assume it's pins D4-D7 on the PIC. If so, these are
the #define statements for the Flex_lcd.c driver: