USB-TO-GPIO datasheet(25/50 Pages) TI1

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.NET Framework

GUI Application:

− VB .NET solution that uses Device Transport (DLL) and .NET

framework

− No other dependencies

− Strictly managed code for Windows form control

Device Transport:

− .NET DLL (managed code) that is also a VB .NET solution

− Interfaces with standard Windows USB HID driver

(usbhid.sys)

− Allows abstraction of application level GUI from interface and

can be re−used in any application using the adapter

.NET Framework:

− Standard installation of .NET framework (version 1.1)

− Installed on all PCs shipping with Windows for last few years

− Standard libraries for application control

Windows XP:

− Standard installation that ships with PCs

− .NET framework and application should also work with

previous versions of Windows as well

− Standard installation that ships with PCs

− Talks to USB hardware using Windows

USB HID Driver

.NET Framework

Windows XP

GUI Application

Device Transport

GUI Application:

− VB .NET solution that uses Device Transport (DLL) and .NET

framework

− No other dependencies

− Strictly managed code for Windows form control

Device Transport:

− .NET DLL (managed code) that is also a VB .NET solution

− Interfaces with standard Windows USB HID driver

(usbhid.sys)

− Allows abstraction of application level GUI from interface and

can be reused in any application using the adapter

.NET Framework:

− Standard installation of .NET framework (version 1.1)

− Installed on all PCs shipping with Windows for last few years

− Standard libraries for application control

Sold and supported by Microsoft

Windows XP:

− Standard installation that ships with PCs

− .NET framework and application should also work with

previous versions of Windows as well

USB HID Driver:

− Standard installation that ships with PCs

− Talks to USB hardware using Windows

.NET Framework

Chapter 5

SLLU093 – August 2006

GUI and PC Libraries

The adapter solution includes a set of PC libraries and a GUI that can be used to allow

PC applications access to the adapter and target devices that the adapter supports.

The GUI and PC libraries are designed using the Microsoft® .NET Framework, in order

to leverage as many standard libraries as possible. As previously described in this

document, the adapter presents itself as a USB HID to Windows. Because of this, no

custom driver is required, and the application software on the PC can use the standard

Microsoft Windows USB driver (usbhid.sys).

Like the adapter, the Windows libraries support all the different types of device

interfaces: I2C, SMBus, PMBus, and GPIO. In addition, the libraries support

configuration and control of the adapter itself by allowing PC programs to update the

EERPROM in the adapter, select switching in and out of resistors on data and clock

lines, etc.

Figure 5-1 represents the software architecture for the PC that is used.

Figure 5-1. USB Adapter Software Architecture

The major pieces of the software architecture are as follows:

• Windows XP™

• .NET Framework

• Device transport

• GUI application

SLLU093 – August 2006

GUI and PC Libraries

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