hello ,
I am using LPC2106 for drive touch screen (sp14q006-22A).
In this touch screen there is no LCD driver ,so we have to control everthing
from LPC only.
actually i dont know how to drive this touch screen?
if any one knows technique or code examples plz let me know.
thanks
anticipating your reply
with regards
gokul Start a New Thread

At 16:27 04.08.2006 +0530, you wrote:

>hello ,
>I am using LPC2106 for drive touch screen (sp14q006-22A).
>In this touch screen there is no LCD driver ,so we have to control everthing
>from LPC only.
>actually i dont know how to drive this touch screen?
>if any one knows technique or code examples plz let me know.
>thanks
>anticipating your reply
>with regards
>gokul
>

I think the touch screen issue will not be your main problem - the sp14q006
does not have a display controller like S1D13700 on board, so as a first
step you have to connect a display controller to the LCD and your LPC and
bring it up runnning and write software for displaying fonts etc.

Regarding the touch screen: You may either use a dedicated touch panel
controller (there are many out there, have a look on Google), these usually
connect via a serial port or do everything by yourself by measuring
voltages via the LPC's ADC, this needs to connect some external FETs for
switching between X and Y direction of the touch panel. Doing everything by
yourself as we did with our iLCD panels - see at www.ilcd.org - is not a
trival issue but it can be done even with a 8-bit controller.

Regards
Herbert Start a New Thread

thanks Demmel,
i am trying to write display driver by using lpc alone is there
any option for that if so please suggest me.

with thanks & regards,
gokul
On 8/4/06, Herbert Demmel wrote:
>
> At 16:27 04.08.2006 +0530, you wrote:
>
> >hello ,
> >I am using LPC2106 for drive touch screen (sp14q006-22A).
> >In this touch screen there is no LCD driver ,so we have to control
> everthing
> >from LPC only.
> >actually i dont know how to drive this touch screen?
> >if any one knows technique or code examples plz let me know.
> >thanks
> >anticipating your reply
> >with regards
> >gokul
> > I think the touch screen issue will not be your main problem - the
> sp14q006
> does not have a display controller like S1D13700 on board, so as a first
> step you have to connect a display controller to the LCD and your LPC and
> bring it up runnning and write software for displaying fonts etc.
>
> Regarding the touch screen: You may either use a dedicated touch panel
> controller (there are many out there, have a look on Google), these
> usually
> connect via a serial port or do everything by yourself by measuring
> voltages via the LPC's ADC, this needs to connect some external FETs for
> switching between X and Y direction of the touch panel. Doing everything
> by
> yourself as we did with our iLCD panels - see at www.ilcd.org - is not a
> trival issue but it can be done even with a 8-bit controller.
>
> Regards
> Herbert
> Start a New Thread