User Manual
Contents
1. LESCH EHS ECH G LL 613 34991 193130 y NAN a T 8 CZy 4ue0l See z 4190S AL Y 8 e SS g WN oas KCH Aue0 i 3 Ze bag SL Y OSSI LLGLO a LN GGA AQL I AQL 3NG szus 6 Ce SE Ll ONS YI e OA uj aan EE LI8 S ou En ANLI V 4 312337 YS0VSH yobyuoy do Figure 5 E511 Circuit Diagram 8 of 12 E511 User Manual 5 2 E511 Assembly Components J1 SPI Interface E OO RR RANA NA E N c3 e R25 R20 Q24274 R21 e ue CA eR2 EI II Ea E R19 C2 IEA P24 Cl U2 Voltage Regulator E511 Wheel Element QWheel UI QT511 IC WWW QPprox com QUANTUM ESEARCH GROUP ROTARY SLIDER EVALUATION BOARD Figure 6 E511 and USB SPI Adapter Card Assembly Details J1 SPI Interface Connector This connector provides all signals and power needed to communicate with the USB adapter or an external host such as a microcontroller If you wish to connect the E511 to a microcontroller and operate the QT511 in Sleep mode you will need to provide in your interface circuit a 1nF capacitor between DETECT J1 pin 10 and GND Refer to the QT511 datasheet for more information Table 1 J 1 SPI Interface Connector 1 N C 8 SDI 2 N C 9 DRDY 3 N C 10 DETECT 4 N C 11 N C 5 SDO 12 N C 6 ISS 13 VSS 7 SCLK 14 VIN 9 of 12 E511 User Manual U1 QT511 IC Table 2 UI2. Call User Manual The New Vision of Touch N wWwww qprox com E511 User Manual Contents ESTO ET 3 A A a a aaa ee eee 2 COMING ON arado 2 Mounting the Spare E511 Board cin EE 4 ae q po RL om lp ES iy RN O OA en o E O 5 E CVV INGO D cise stants ude wade naa in 6 Eh VEER eegene e eeh een ee 42 HOW OUSE EEN el EE e EE eege 9 ESUTASSEMDILY RU 8 A O a ote eet ch ce secs ee 22 nl LVL elle TEE O E de Leed Ce EE 11 List of Figures Figure 1 Evaluation Assembly and USB SP Adi Cand e Ethie Figure 2 Mounting the Spare E911 Board DEE Figure 3 E911 and USB Ne AS no A E A A ERE Foue o EIT Circuit RI Let RE Figure 6 E511 and USB SPI Adapter Card Assembly Details a E List of Tables ee A EK ELE ea E 10 Corporate Headquarters North America 1 Mitchell Point 651 Holiday Drive Bldg 5 300 Ensign Way Hamble Pittsburgh PA 15220 Southampton SO31 4RF USA United Kingdom Tel 44 0 23 8056 5600 Tel 412 391 7367 Fax 44 0 23 8045 3939 Fax 412 291 1015 2 of 12 E511 User Manual 1 E511 Overview 1 1 Introduction This kit is designed for the evaluation and development of applications using the QT511 ISSG QWheel IC The kit includes an evaluation assembly E511 see Figure 1 cables and QWheel software The E511 has a serial interface allowing connection to a PC for control and data viewing via a USB to SPI adapter card and QWheel PC software This unique IC allows designers to create speed or volume controls
3. QT511 IC Pin Name Pin Name 1 VDD 8 SNS2A 2 SDO serial data output 9 SNS1B 3 ISS slave select input 10 SNS1A 4 SCLK serial clock input 11 SDI serial data input 5 SNS3B 12 DETECT active high output 6 SNS3A 13 DRDY data ready output 7 SNS2B 14 VSS U2 Voltage Regulator The E511 uses a Low Dropout LDO regulator to regulate the 5V coming from the USB adapter card down to 3 3V Resistor R25 is not usually fitted to the Quantum evaluation board because the Quantum provided regulator is very stable However in certain circumstances if other regulators are used R25 may be fitted Since the QT511 works on a lower voltage 3 3V than the USB card 5 0V the signals from the USB card to the E511 must be level shifted down This is done using resistive dividers R20 R21 and R22 plus a set of resistors placed in series with the signal lines on the USB card Wheel Element The wheel element is resistorless and consists of etched copper electrodes For more information refer to the QT511 datasheet Sampling Capacitors C1 C2 and C5 are the Cs sampling capacitors Increasing their value will increase sensitivity and resolution of measurement but will also tend to make the response time slower Conductive Backplate this is fitted to allow the E511 assembly to be picked up without false detections occurring and without having to recalibrate every time it is moved If the back
4. acking paper bend the board slightly Figure 2 Mounting the Spare E511 Board 4 of 12 E511 User Manual 3 Setting Up the E511 To prepare the E511 for use proceed as follows 1 Using the flat flexible cable FFC provided connect the E511 assembly to the USB SPI adapter card ensuring correct orientation of the FFC With the E511 connector lock open Figure 3 carefully insert the end of the cable into the connector Once fully inserted push the connector lock tabs to close them Check that they are fully engaged Repeat for the USB SPI adapter card 2 Using the USB cable provided connect the USB SPI adapter card to the PC LED 1 lights constantly to indicate that there is power to the card 3 Install the software either method is acceptable a Putthe supplied CD in the CD drive of the PC Copy the contents of the CD to your PC Double click the QWheel software to open it OR b Goto www aprox com point to the Support tab and click Download Archive Click Software and then the QWheel link A dialog box appears asking if you want to run or save the file that you are about to download Click Run This automatically downloads the software If a dialog box appears saying The publisher could not be verified Are you sure you want to run this software click Run 4 QWheel software is displayed on the PC screen LED 1 now flickers continuously to indicate that QWheel is communicating with the E511 assembly Refer to Sect
5. e numerical wheel position and Command Return gives the hexadecimal equivalent When you remove your finger the last position touched will be locked on the display LED 2 on the USB card lights every time the E511 assembly is touched for the duration of the touch If the QWheel software is not detecting or detection is sporadic decrease the Threshold slightly Refer to Section 4 3 Page 7 for details of which parameters you can change 6 of 12 E511 User Manual 4 3 QWheel Parameters Refer to Figure 4 Page 6 to see the parameter areas of the QWheel software refer to the QT511 ISSG datasheet for more information Connected Disconnected indicator is alight all the time that the E511 is connected to the PC but goes out when the E511 is disconnected from the PC Threshold sets the amount of signal change which will cause the E511 to register touch detection The default 25 Click the Threshold arrow and select a new threshold if required Drift Compensation Rate sets the adaptive drift compensation rate The numbers represent seconds per reference level The default 5 Click the Drift Compensation Rate arrow and select a new rate if required Detection indicator lights when a touch is detected on the E511 assembly and goes out when the touch is removed Wheel indicator moves as you move your finger around the E511 wheel When the touch is removed the wheel indicator shows the last reported touch position The indicator does no
6. ion 4 2 Page 6 about using the E511 connector lock open connector lock connector lock engaged open LED 1 USB card USB cable to PC Connections between USB card and PC Figure 3 E511 and USB Connectors 5 of 12 E511 User Manual 4 QWheel 4 1 Introduction QWheel software is used for the E511 evaluation assembly With QWheel software you can send commands and monitor signals in real time see Sections 4 2 and 4 3 Connected Disconnected indicator Wheel indicator Shows when the E511 is Shows the last reported connected to the PC Threshold touch position see Page 7 see Page 7 see Page 7 QWheel E 5 Connecteg vi Threshold Drift Com lid E D Drift Compensation Rate Detection Detection see Page 7 Signal Error Signal Error indicator ay CALIBRATE see Page 7 Ss Output Ratio Command Return Se Calibrate 32 0x40 see Page 7 08 Le QU ANTUNM SEARCH GROUP The New Visio of Touch WM Patented and Patents P nding Status Bar M gt usB connected 511 QWheel Mer 14 May 2006 see Page 7 Output Ratio Command Return see Page 7 see Page 7 Figure 4 QWheel Information Areas 4 2 How to Use the E511 Assembly 1 Place the E511 assembly on a level surface 2 At the start of each session keeping clear of the E511 click Calibrate 3 Move your finger around the wheel area of the E511 assembly As you do so the Detection indicator lights Output Ratio shows th
7. nect the USB cable directly to the PC 11 of 12 seus qu 1 Mao 4 QUANTUM ESEARCH GROUP WWW qprox com Corporate Headquarters 1 Mitchell Point Ensign Way Hamble Southampton SO31 4RF United Kingdom Tel 44 0 23 8056 5600 Fax 44 0 23 8045 3939 Copyright O 2006 2007 QRG Ltd All rights reserved Patented and patents pending Development Team Martin Simmons Keith Britton Matthew Trend North America 651 Holiday Drive Bldg 5 300 Pittsburgh PA 15220 USA Tel 412 391 7367 Fax 412 291 1015 REV 200 0107
8. plate is removed the E511 assembly cannot be picked up without these happening LED 1 on USB card before the QWheel software is running LED 1 will be on constantly to indicate that the USB card is connected to the PC and has power see Figure 6 Once the QWheel software is running LED 1 flickers continuously to indicate that the software is communicating with the E511 assembly LED 2 on USB card stays on when the E511 assembly is touched for the duration of the touch see Figure 6 10 of 12 6 Troubleshooting Problem Software will not communicate with PC Noisy or erratic signal E511 User Manual Potential Cause and Solution gt Bad SPI or USB connection Check that the USB cables are connected properly Check replace cables Ensure that the E511 assembly is getting power and the USB card LED 1 is on Noisy power supply Try a different USB port or PC Cables or E511 assembly too close to strong noise source such as a power line or switching noise source Increase the distance between the E511 assembly and the noise source Ensure that the backplate is fitted and securely screwed to the four corner M3 threaded fasteners these are connected to ground on the board E511 assembly is not mechanically stable Prevent E511 assembly from moving around gt Strong RFI from a transmitter or adjacent digital product Remove the noise source or shield against it gt USB cable connected via a USB hub Con
9. t move when only proximity is detected Note if Threshold is set to a very low level the indicator may move if the user s hand is in close proximity Signal Error indicates that the signal has the wrong polarity usually due to E511 assembly movement Clicking Calibrate will resolve the error Calibrate calibration should be performed with the E511 assembly in the position in which it will be used with hands at a distance to get a valid reference level Once positioned click Calibrate to calibrate the E511 assembly Note if the conductive backplate has been removed recalibrate the E511 every time that the board is moved Output Ratio shows the numerical wheel position with touch from 0 to 127 This changes in real time as the position of touch on the E511 wheel changes Command Return represents the QT511 s response status byte in hexadecimal This is useful for diagnostic purposes It changes in real time as the position of touch on the E511 wheel changes The Status Bar indicates if the USB is connected and also which version of QWheel software is present 7 of 12 E511 User Manual 5 E511 Assembly Details ircuit Diagram 5 1 C GEI ANY Ah ON n OYO OOA AAN 00A KR A gL g L n 934 MO 163
10. using a wheel rotor and other more exotic forms of human interface on the panel of an appliance or personal electronic device Generally it can be used to replace any form of rotary knob through a completely sealed panel Refer also to the QT511 ISSG datasheet 1 2 Contents of Kit 1 x E511 evaluation assembly fitted with conductive backplate 1 x E511 evaluation board complete with components and self adhesive on one side 1 x USB PC cable 1 x USB SPI adapter card 1 x 14 way flat flexible cable FFC 2 x sample QT511 ISSG ICs 1 x CD ROM containing QWheel software User Manual and Datasheet FFC cable USB SPI adapter card E511 evaluation assembly Figure 1 Evaluation Assembly and USB SP1 Adapter Card 3 of 12 E511 User Manual Mounting the Spare E511 Board A spare E511 board is included to allow testing on different applications lt can be adhered to plastic glass or any other dielectric panel Follow these steps to attach the E511 board and refer to Figure 2 1 Use ESD precautions when working with the E511 board 2 Remove the paper backing from the E511 board and adhere the board to the rear of the dielectric panel Bend the board slightly while smoothing it to remove any air bubbles Note The board does allow some flexing but care must be taken not to bend it too far as this can crack the SMT components Also the four corner M3 threaded fasteners are connected to ground on the board remove the b
Download Pdf Manuals
Related Search