P0071 Datasheet, PDF (38/43 Pages) Altera Corporation – DE2-115 with LCD Touch Panel and Camera

5.2 Running the Application Selector
• Connect power to the tPad board
• Insert the SD Card with applications into the SD Card socket of tPad
• Switch on the power (SW18) (1*)
• Scroll to select the demonstration to load using the side-bar
• Tap on the Load button to load and run a demonstration (2*)
Note:
(1).If the board is already powered, the application selector will boot from EPCS, and a splash
screen will appear while the application selector searches for applications on the SD Card.
(2).The application will begin loading, and a window will be displayed showing the progress.
Loading will take between 2 and 30 seconds, depending on the size of the application.
5.3 Application Selector Details
This section describes some details about the operation of the application selector utility.
SD Card
The Application Selector uses the SD Card for storing applications. The SD Card must be formatted
with the FAT 16 file system, and can be any capacity up to 2GB. Long file names are supported.
The Nios II CPU access the SD Card through an SD Card SPI controller.
Application Files
Each loadable application consists of two binary files, all stored on the SD Card. The first binary
file represents the software portion of the example and must be derived from an .ELF file as
described in the section of this document titled “Creating Your Own Loadable Applications”. This
binary file can be named anything supported by the FAT16 file system, the only restriction being
that the name must end with _SW.bin. The second binary file represents the hardware portion of the
example and must be derived from a .SOF file as described in the section of this document titled
“Creating Your Own Loadable Applications”. This file can be named anything supported by the
FAT 16 file system, the only restriction being that the name must end with _HW.bin.
SD Card Directory Structure
All loadable applications on the SD Card must be located in a top-level directory named
Application_Selector. Under the Application_Selector directory, each application is located in its
own subdirectory. The name of that subdirectory is important because the application selector utility
uses that name as the title of the application when displaying it in the main menu. The subdirectory
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