XPT2046 Touch Controller

Sterngleiter · Joined: 07 Jan 2013 Posts: 90

Hello,
I need help. I have so bought on ebay a Tft but I do not know how I can control XPT2046. I absolutely do not understand data sheet please help me.
ftp://imall.iteadstudio.com/LCD_Panel/IM120905004/DS_XPT2046.pdf

http://www.ebay.de/itm/3-2-TFT-320-x-240-LCD-Display-Module-with-Touch-Panel-PCB-Adapter-/271233627387?pt=Notebook_Komponenten&hash=item3f26c8b4fb
I have Not any Code

ezflyr · Joined: 25 Oct 2010 Posts: 1019 Location: Tewksbury, MA

Hi,

Did you see this thread in the forum archives? Was it helpful?

http://www.ccsinfo.com/forum/viewtopic.php?t=48085&highlight=2046

John

Sterngleiter · Joined: 07 Jan 2013 Posts: 90

It is Not the same,I need enlightenment, it would be very nice if someone would take

temtronic · Posted: Thu Aug 21, 2014 1:02 pm

Note: this is a 3Volt device, so choose an 'L' version PIC or at least one that will operate at 3 volts.

That display has both LCD and a touch screen so you need to break your project into two parts.

1) sending data to the LCD. It uses an SSD1289 'controller' chip, so use Google to locate a 'driver' for it. There are several, though I didn't see a CCS C one in the brief time I looked......it does appear to require a 16 bit data bus as the Ebay picture was helpful with the pinout.

this link....
http://320volt.com/en/ts8001-tft-grafik-glcd-ornegi-pic18f4680-ccs-c/
... may be useful, appears to be a good starting point ?

2) sending touchscreen data to the PIC. This LCD uses SPI to communicate to the touchscreen peripheral. Again let Google be your friend and locate a driver.

Without having a unit here, I can't code a driver for it, as I have no way of testing it. I strongly suggest getting #1 done first, sending data to the LCD.

hth
jay

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

The simple rule to prevent this pain, is don't buy something unless you
have a driver for it ahead of time. Or at least, you must have a good
example driver that can easily be converted to CCS.

KansaiRobot · Joined: 25 Nov 2015 Posts: 5

I know this is old, but when you say "driver" you mean the software to control the driver , right?

XPT2046 is just SPI. So if you write SPI code it is supposed to work.
(I say supposed because right now, my code is not working Embarassed

)

Should I start a new thread? (because it is about this very same controller I thought maybe this thread would be ok

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Yes, by 'driver', I meant a software driver (source code).

A new thread for your problem would be better.