Storm Interface Nav-Pad Technical Manual

Keypad with integrated audio

Hide thumbs Also See for Nav-Pad:

Technical manual (64 pages)

page of 55

/ 55
Bookmarks

Quick Links

Download this manual

Product Overview

Features, Part Numbers & Specifications

Audio Control – Typical Method

USB Device Information

Code Tables

Windows Utility

System Requirements

Using the Utility

Customising the USB Codes

API for controlling the Keypad from the Host Computer

Device Communications / Message Format

List of Messages

Message Details

Host API Library for Application Developers

Code Examples (Visual Studio)

Remote Update of Device Firmware

Change History

Nav-Pad™ was developed in association with the Trace Research & Development Center with support from the University of Wisconsin.

Nav-Pad™ is a compliant tactile interface device for use as part of an ADA audible menu navigation system or EZ-Access® implementation.

EZ Access® is a trademark of the Wisconsin Alumni Research Foundation

The content of this communication and/or document, including but not limited to images, specifications, designs, concepts and information

is confidential and is not to be used for any purpose or disclosed to a third party without the express and written consent of

Nav-Pad + Audio - Technical Manual Rev 1.9

www.storm-interface.com

Nav-Pad

™

Keypad with integrated audio

Page

Technical Manual

Page 1 of 55

Table of Contents

Need help?

Do you have a question about the Nav-Pad and is the answer not in the manual?

Questions and answers

Summary of Contents for Storm Interface Nav-Pad

Page 1 Nav-Pad™ was developed in association with the Trace Research & Development Center with support from the University of Wisconsin. Nav-Pad™ is a compliant tactile interface device for use as part of an ADA audible menu navigation system or EZ-Access® implementation.
Page 2 Kiosks, ATMs, ticketing machines and voting terminals usually present Information about available products and services via a visual display or touch screen. The Nav-Pad™ keypad is a highly tactile interface that have been designed to facilitate audio navigation of software applications by those with sensory or mobility impairment.
Page 13 Using the Utility Double Click on the Shortcut to start and it will display the form below. Connect the Nav-Pad to a USB port. + audio Note: Before loading the form it initially detects the Nav-Pad™ using the VID/PID and if found it sends a device status message.
Page 14 NOTE: If the Nav-Pad™ – Alternate table is selected the function of the UP/DOWN key changes to be the HID consumer controlled VOLUME UP/VOLUME DOWN. If audio file is being played, then if user presses the UP/DOWN key the volume on the PC will be adjusted.
Page 21 To save the modified data in nonvolatile memory, click on “Save changes” button before you power down the keypad. Reset to factory defaults + audio Clicking on “Factory Default” will set the Nav-Pad™ keypad with values that are preset. NAV-PAD™ – default table LED brightness – 9 Beeper –...
Page 22 • Audio test To test the audio of the Nav-Pad™ you must be using the default code table. Click On “Test Nav-Pad™” to start The content of this communication and/or document, including but not limited to images, specifications, designs, concepts and information is confidential and is not to be used for any purpose or disclosed to a third party without the express and written consent of Keymat Technology Ltd., Copyright 2017.
Page 23 Using the Utility Upgrade Firmware To upgrade the firmware click on “Upgrade Nav-Pad™ Keypad Firmware” button Click on “Yes” to confirm After a few seconds the “Browse” and “Upgrade” button will be enabled. (If both buttons are greyed out then reset the unit and retry) Click on “Browse”...
Page 24 Upgrade Firmware The screen below will be displayed while the upgrade is in process. Once unit has upgraded to new firmware, the Nav-Pad™ will auto reboot. Press “Close” and the new firmware version will be displayed on the utility. The content of this communication and/or document, including but not limited to images, specifications, designs, concepts and information is confidential and is not to be used for any purpose or disclosed to a third party without the express and written consent of Keymat Technology Ltd., Copyright 2017.
Page 25: Message Formats
API for controlling the Keypad from the Host Computer This section provides details on how the Nav-Pad™ can be controlled from a host that has USB capabilities. The API incorporating this command set is downloadable from www.storm-interface.com. Device Communications and Message Format NAV-PAD™...
Page 26: Error Code
Host To NAV-PAD™ – Sets the Nav-Pad™ to detect the device loader for firmware loading 13 Status Beeper Host to NAV-PAD™ – Sounds the beeper for x period. X is passed in value (0 - 9). This will sound the beeper even if beeper is switched off. Error Code...
Page 27 Technical Manual Controlling the Keypad from the Host Computer List of Messages (Structure of Messages from Host to Nav-Pad™ is on the following pages) Name Description Device Status Request Output the firmware version & selected parameters LED Brightness Adjust led brightness.
Page 28: Device Status
Technical Manual Device Status (01) Host sends this message to request the status of the NAV-PAD™ keypad NAV-PAD™ Status Response Secure device sends this message to Host in response to the Device Status message. Data Field Type Length Description...
Page 36 Write Config Data To Flash command (09) Host sends this command to request the NAV-PAD™ to write the configuration data from RAM to FLASH. This command has no data associated with it. RAM to FLASH Command & Response...
Page 37 Reset To Factory Default command (10) Host sends this command to request the NAV-PAD™ to reset parameters back to factory default. This command has no data associated with it. Reset To Factory Default Command & Response Data Field...
Page 38 Keypad with integrated audio Technical Manual Enable BSL Command (12) Host sends this command to request the NAV-PAD™ to start downloader Enable BSL Command & Response Data Field Type Length Description ec Error Code Host Device NAV-PAD™...
Page 40 Technical Manual Key Press Code With the USB stack configured for a standard keyboard interface, the Nav-Pad™ sends appropriate key report to HOST when a key is pressed on keypad. Keyboard Report HID Keyboard Report Format BIT7...
Page 41 This document is prepared for application developers who will implement a host application for the Nav-Pad™. The Host API Library for the Nav-Pad™ is a middleware application between the Host application and keypad device. You can download this together with the HIDAPI library from www.storm-interface.com.
Page 44: Return Value
 Product ID – 0x09BF On successful finding the keypad the manufacturer_local will be filled with “Storm Interface” and product_local will be filled with “EZ Key”. If not successful both of the strings will be filled with “none” Parameters :...
Page 45 Keypad with integrated audio Technical Manual GetDeviceStatus This function retrieves status information about the Nav-Pad™. For example, led_brightness, buzzer_on_off, buzzer_period etc. All information is stored in DEVICE_INFO structure. Parameters : typedef struct unsigned char led_brightness; unsigned char buzzer_on_off;...
Page 51 Keypad with integrated audio Technical Manual WriteDefaultToFlash This function commnds the Nav-Pad™ to commit current values to flash. Parameters : timeToWait maximum time to wait for command to complete Return Value: 0 for success ///\brief WriteDefaultToFlash This function writes changed values to...
Page 52: Reset To Factory Default
Keypad with integrated audio Technical Manual ResetToFactoryDefault This function commands the Nav-Pad™ to reset the Nav-Pad™ to factory default. Parameters : timeToWait maximum time to wait for command to complete Return Value: 0 for success ///\brief ResetToFactoryDefault This function reset AudioNav to factory...
Page 54 Technical Manual Code Examples Click on Nav-Pad™ Api (microsoft visual studio solution) and the workspace will be launched. The workspace has 5 projects: Nav-Pad™Api This is the API as described above. Hidapi This is freeware api for low level communication with USB device.

Storm Interface Nav-Pad Technical Manual

Quick Links

Need help?

Questions and answers

Summary of Contents for Storm Interface Nav-Pad

Page 25: Message Formats

Page 26: Error Code

Page 28: Device Status

Page 33: Buzzer Command

Page 44: Return Value

Page 52: Reset To Factory Default

Page 55: Change History

Storm Interface Nav-Pad Technical Manual

Quick Links

Need help?

Questions and answers

Related Manuals for Storm Interface Nav-Pad

Summary of Contents for Storm Interface Nav-Pad

Page 25: Message Formats

Page 26: Error Code

Page 28: Device Status

Page 33: Buzzer Command

Page 44: Return Value

Page 52: Reset To Factory Default

Page 55: Change History