Re: [Gumstix-users] Does the overo motherboard have an on-board A/D converter

[Steve S. <sa...@gm...>]

On Sat, Dec 13, 2008 at 11:56 PM, Elvis Dowson <elv...@ma...> wrote:
> Hi Steve,
>                      I have a Sharp LQ043T1DG01 4.3" 24-bit color
> touchscreen module that I want to interface with the Overo motherboard.
> The Sharp LCD display has a 4-wire analog resistive touchscreen panel.
> Can you confirm if the TPS65950 A/D pins are accessible from
> a. the overo motherboard itself via one of the three connectors or

http://www.gumstix.net/Documentation/view/Motherboard-I/O/Overo-Connector-J1-features-the-LCD-PWM-and-analog-signals/109.html

> b. from the summit expansion board

http://www.gumstix.net/Documentation/view/I/O/Gumstix-Summit-board-40-pin-header/109.html


Steve



> I couldn't find any detailed schematics on the overo motherboard or the
> summit expansion board, the hardware schematics section on the gumstix
> website has not yet been updated for the Overo.
> Best regards,
> Elvis Dowson
>
> On Dec 13, 2008, at 3:44 AM, Steve Sakoman wrote:
>
> On Thu, Dec 11, 2008 at 10:46 PM, Elvis Dowson <elv...@ma...> wrote:
>
> Hi,
>
>        Does the overo motherboard have an on-board A/D converter?
>
> The product description page mentions A/D (6).
>
> Yes, those A/D inputs come from the TPS65950 on the motherboard.
>
> See below for more details:
>
> http://focus.ti.com/docs/prod/folders/print/tps65950.html#technicaldocuments
>
> Steve
>
>
>
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