TouchNetix AXiom AX112A EVK Manual de usuario

aXiom AX112A EVK Quick Start Guide

1 Introduction

The aXiom AX112A EVK is intended to serve as a platform, to evaluate the capabilities of the AX112A

device. This quick start guide will provide an overview of the EVK, how to setup the EVK system and how

to communicate with the AX112A device using TouchHub2.

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aXiom AX112A EVK Quick Start Guide

Contents

1 Introduction 1

2 Terminology 3

3 Getting Started With The AX112A EVK 4

4 TouchHub2 Software 7

4.1Reports..................................................... 7

4.2TouchDrawing ................................................ 7

4.3 Loading and Saving AX112A Conﬁgurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.4 Loading New AX112A Device Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.5ProtocolBridgeModes ........................................... 10

4.6 Updating the Protocol Bridge Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.7LicenceKey(Optional)........................................... 12

5 AX112A EVK Overview 13

5.1EVKContents................................................. 13

5.2AX112AEVKHeaders ............................................ 14

5.2.1HostCommsHeader-SK3 ..................................... 14

5.2.2 Communication Mode Select Header - PL4 . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.2.3 I2CAddressSelectHeader-PL1.................................. 15

5.2.4 Master Comms GPIO Header - SK6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.2.5 Master Comms I2CConnector-SK7 ............................... 16

5.2.6Sync/GPIOHeader-PL9 ..................................... 16

Appendix A References 17

Appendix B EVK Dimensions 18

Appendix C Bridge Board Dimensions 19

Appendix D EVK Schematic 20

Appendix E Legal Copyright and Disclaimer 22

Appendix F Document History 23

List of Figures

3-1AX112AEVKConnectionImage ..................................... 5

3-2 TouchHub2 Drawing Window, Target Information and Settings . . . . . . . . . . . . . . . . . . . 6

4.2-1EnableDrawing .............................................. 7

4.3-1 Loading a New Conﬁguration File in TouchHub2 . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.3-2 Saving a Conﬁguration File in TouchHub2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.4-1 Loading New aXiom Device Firmware in TouchHub2 . . . . . . . . . . . . . . . . . . . . . . . . 9

4.5-1BridgeModeSelect............................................ 10

4.6-1BridgeFirmwareUpdate ......................................... 11

4.6-2BridgeFirmwareVersion ......................................... 11

4.7-1TouchHub2LicenceEdit ......................................... 12

4.7-2LicencingWindow............................................. 12

5.2.2-1 EVK Communication Mode Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.2.3-1 I2CAddressselect............................................ 15

B-1EVKDimensions ............................................... 18

C-1BridgeBoardDimensions ......................................... 19

D-1EVKSchematic-Page1 .......................................... 20

D-2EVKSchematic-Page2 .......................................... 21

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aXiom AX112A EVK Quick Start Guide

2 Terminology

Term / Abbreviation Description

EVK aXiom AX112A Evaluation Kit.

FFC Flat Flex Cable.

FPC Flexible Printed Circuit.

GPIO General Purpose Input/Output.

I2C Inter-Integrated Circuit, synchronous two wire communication serial bus.

Bridge

The Protocol Bridge board is a module that communicates with the AX112A

device over I2C or SPI and presents a USB HID device to the host system. In

effect, it acts as a USB to I2C/SPI translator.

Report(s) Messages to the host from the AX112A device.

SPI Serial Peripheral Interface, synchronous four wire communication serial bus.

Target Either a proximity, hover or a touch detection.

TouchHub2 TouchNetix proprietary software; used to demo, tune and load

ﬁrmware/conﬁguration ﬁles to the aXiom device via the Bridge.

Touch Screen This is an assembly comprising of a touch sensor and FPC bonded to a glass lens.

Table 2-1: Application Note Terminology and Abbreviations

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aXiom AX112A EVK Quick Start Guide

3 Getting Started With The AX112A EVK

To start using the AX112A EVK system you will need the following:

1. A PC running Windows 10 operating system (minimum requirement)

2. AX112A EVK board (supplied)

3. Bridge board (supplied)

4. USB A to mini USB B cable (supplied)

5. A TouchNetix touch screen (other compatible touch screens can be used)

6. FFC cable (supplied)

7. TouchHub2 software

The following steps explain how to set up the AX112A EVK system:

1. Connect the touch screen to the AX112A EVK board. (make a note of the number printed on the

underside of the touch screen starting ’840-’ as you will need this later)

(a) Lift the latches on connectors SK1 and SK2 on the EVK board.

(b) Align the FPC attached to the touch screen with SK1 and SK2 on the EVK board ensuring that

the gold contacts are facing downwards into the connectors. (This needs to be done at a

slight angle to allow the tabs on the edge of the FPC to engage in the connector).

2. Connect the EVK board to the TNxAC-009 Bridge board.

(a) On both of the PCB’s, ensure that you have pulled the tabs on either side of the connectors

out, so that the cable can be slid in easily.

(b) Before inserting the FFC into the connectors, ensure that the silver contacts are facing upwards.

back in, to lock the cable in place.

3. Connect the Bridge board to a Windows based host PC using the supplied or compatible USB

cable. (The host PC requires a USB2.0 or newer socket.)

(a) The Bridge board provides power to the EVK when connected to the host.

(b) When the Bridge board is powered, there are 2 LED’s that should be on.

i. LED1 and LED2, next to the connector labeled ’DEBUG’.

i. LED4 - Located near the connector PL4

4. Install and launch TouchHub2.

(a) TouchHub2 will automatically discover the ﬁrst available Bridge once running.

(b) You should then see ’Connected’ in the bottom left hand corner of the window.

(d) TouchHub2 also has a ’Quick Start guide’ within the software which can be found in the ’Help’

menu.

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aXiom AX112A EVK Quick Start Guide

The EVK setup should look like the the following image.

Figure 3-1: AX112A EVK Connection Image

Key Component

1Touch Screen.

2aXiom AX112A EVK board.

3FFC between AX112A EVK board and the Bridge board.

4Bridge board (TNxAC-009).

5USB connection to the host.

Table 3-1: AX112A EVK Connections

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aXiom AX112A EVK Quick Start Guide

The different views seen here, can be selected by opening the ’Report Data Views’ menu. Views that

display real-time target data will reference u41 in the view title. The ’Drawing Settings’ in the ’Report

Data Views’ menu, will allow for different methods of visualizing the target data.

Figure 3-2: TouchHub2 Drawing Window, Target Information and Settings

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aXiom AX112A EVK Quick Start Guide

4 TouchHub2 Software

TouchHub2 is a proprietary TouchNetix application that has been designed to conﬁgure the aXiom

family of touch controllers. Without a licence key, TouchHub2 will run in a demo mode, which enables

the drawing interface and access to information regarding the reports that the aXiom device is generating.

With a licence key, different tuning and conﬁguration options will be available, depending on the type

of licence you are issued with. TouchHub2 also enables conﬁguration ﬁles to be loaded and/or saved,

as well as new ﬁrmware to be loaded to the device.

4.1 Reports

Reports are data messages that the aXiom device generates, to provide the host with real-time information.

There are two main reports that will be observed. (Other reports may be observed, and can be ignored

for the sake of this quick start guide.)

• u01 - System Report

–Heartbeat message from the ﬁrmware to notify the host that the aXiom device is functioning.

–A system report message is also sent at aXiom boot.

–A typical conﬁguration will generate this heartbeat message once per second.

• u41 - Target Report

–This report includes all proximity, hover and touch targets and their detection states.

–All target statuses are reported in a single report.

–A typical conﬁguration will generate a target report message after every touch panel measurement

frame.

4.2 Touch Drawing

The Drawing window in TouchHub2 is used to verify that touches, hover and proximity targets are correctly

reported by the aXiom device. Before the drawing mode can become active, it needs to be enabled

by moving the switch in the window from ’Off’ to ’On’. This will allow TouchHub2 to consume the u41

target reports from the aXiom device and draw the appropriate markers/lines.

Figure 4.2-1: Enable Drawing

For more help with TouchHub2 use the help guide referred to in the ’Quick Start guide’ within the

software which can be found in the ’Help’ menu.

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aXiom AX112A EVK Quick Start Guide

4.3 Loading and Saving AX112A Conﬁgurations

The conﬁguration ﬁle, contains all the necessary register settings to tune the AX112A to the physical

characteristics of the sensor connected to it, conﬁgure measurement modes, process measurement

results and react to environmental effects such as noise and temperature changes. To load or save

conﬁguration ﬁles, ﬁrst open the ’Conﬁguration’ view within the ’Device Views’ menu.

Figure 4.3-1: Loading a New Conﬁguration File in TouchHub2

If loading a new conﬁguration ﬁle received from TouchNetix, select ’Load Conﬁguration’ and then

browse for the ﬁle in the pop-up window that appears, and click ’open’. On the window that remains

open, do not change any of the tick boxes unless instructed to do so by TouchNetix, and click ’Load’

to load the ﬁle. Once the new conﬁguration ﬁle has been loaded, the EVK board will reset

automatically and TouchHub2 will reconnect.

Figure 4.3-2: Saving a Conﬁguration File in TouchHub2

To save a conﬁguration ﬁle, select ’Save Conﬁguration’, enter the name and location then click ’Save’.

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aXiom AX112A EVK Quick Start Guide

4.4 Loading New AX112A Device Firmware

TouchHub2 can be used to update the aXiom ﬁrmware. It will handle the update process and automatically

reset the device once the download is complete. Depending on the changes in the ﬁrmware, the

conﬁguration ﬁle may need to be reloaded after downloading new ﬁrmware. See section Loading and

Saving AX112A Conﬁgurations for how to load conﬁguration ﬁles. The ﬁrmware is contained within an

.alc ﬁle.

Figure 4.4-1: Loading New aXiom Device Firmware in TouchHub2

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aXiom AX112A EVK Quick Start Guide

4.5 Protocol Bridge Modes

The Bridge can be conﬁgured to enumerate as a USB touch digitizer device, whereby touch inputs will

generate appropriate HID reports for the host operating system to respond to. To change the Bridge

mode, navigate to the ’Connection’ menu and select the ’System Maintenance’ option from the drop

down menu. Click the ’OK ’ button in the warning pop-up window and then, on the next window, ensure

that the Bridge tab is selected. The Bridge supports three modes and can be selected as per Figure 4.5-1

Bridge Mode Select:

1. TBP Basic Mode - Allows TouchHub2 to communicate with the aXiom device being conﬁgured and

tested.

2. TBP Digitizer Mode - The Bridge will enumerate as multi-touch digitizer and allow the ﬁrst 5 targets to

be sent to Windows to process.

3. TBP Absolute Mouse Mode - The Bridge will control the mouse based on the state of the targets.

Note: In Digitizer and Absolute Mouse Modes windows will respond to messages sent by the Bridge

and treat it as an input device. Therefore, if the aXiom device is not conﬁgured correctly you may get

unwanted input to the OS. To avoid this, keep the Bridge in Basic mode until a valid conﬁguration has

been loaded into the aXiom device.

Once the desired mode has been selected, click the ’Apply’ button. The Bridge will reset and

re-enumerate with Windows.

Figure 4.5-1: Bridge Mode Select

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