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Chapter 3: Software Information

Software Components of the NEO HDK

Psion Teklogix NEO HDK User Manual 23

3.1 Software Components of the NEO HDK

The NEO HDK includes the following 4 files:

• 81000197A.pdf (this manual) – NEO HDK User Manual

• neo_housing_and_bracket_asm.igs – 3D CAD drawing of the assembled NEO

• neo_expansion_PAD_DETAILS.pdf – 2D drawing showing the precise locations of

the device anchor points and connection pads

• NeoHDKLibrary.zip – C++ header and library files for device control programming

The 3D CAD drawing (IGES format) provides the physical shape of the NEO back cover

and the anchor points where add-on devices can be attached. There are four threaded inserts

on the underside of the unit that serve as anchor points for screw-on devices, as well as three

recesses to accommodate snap-on devices. A close-fitting add-on device can be designed

using this information.

The location and dimensions of the two large connection pads of the expansion port are also

found in the 3D CAD drawing.

The 2D drawing (PDF format) gives precise locations and distances between the anchor

points on the back of the NEO, as well as the location and layout of the 16 small electrical

connection pads of the expansion port.

The HDK library file contains the C++ .hpp and .lib files necessary to write software con-

trolling power to the expansion port. See Section 3.6: “NEO HDK API Reference” for more

information on using these files.

3.2 NEO Expansion Port Power Control

The NEO peripheral controller (PCon) implements four power control states for the expan-

sion port power. They are:

• Off: Power is turned off when this command is received.

• On: Power is turned on when this command is received, and will remain on, even when

the hand-held is in suspend.

• On with auto off: Power is turned on when this command is received, and turned off

when the hand-held suspends. The application is responsible for turning it back on after

the hand-held resumes.

• Auto on/off: PCon turns the power on to the expansion port before booting/resuming

the main processor, and turns it off when suspending.

There are two methods for managing the power output on the expansion interface: the

application can allow the DTS (Docking and Tether Port Service) to manage the power,

or the power can be managed directly through API function calls.

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Psion Teklogix ISO 9001 Manuale Utente Pagina 31