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LCD with SPI interface

 
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pacman



Joined: 03 Feb 2010
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LCD with SPI interface
PostPosted: Wed Feb 03, 2010 8:40 am     Reply with quote

Hello
I'm actually new in programming PIC with CCS. And I have buy a demo board for pic 18 (DM183032)
http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en535770

On this board the LCD is connected to a SPI I\O expander (MCP23S17).
And the I\O expender has a SPI interface that connect it to the microcontroller (PIC18F8722)

So if I'm right this is a serial communication and the example of code just ahead can not be used for this case.

So my question is:

Does anybody have a example of source code for the command of a LCD display with a SPI interface??

I have searching the forum but without result :-(


Thank you

PS: sorry for my English I'm FR...
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Wed Feb 03, 2010 1:19 pm     Reply with quote

Look at this thread on the Microchip forum:
http://www.microchip.com/forums/tm.aspx?m=368990&mpage=1
At the end of the thread, there is a post by jblackann_tt which has
a link "Attachment(4)" at the end. It has C18 source code for an
LCD driver for the PIC18 Explorer Board. It's written in a fairly
primitive manner. With CCS, we normally write code at a higher
level than that. But, it could be translated to CCS.

Or, you could switch to the Microchip C18 compiler.
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