3M EX II 3000SP Computer Monitor User Manual
Contents
1. EX IT 3000SP Controller Reference Guide 3M Touch Systems Read and understand all safety information contained in this document before using this product 3M Touch Systems Proprietary Information 2 EX II 3000SP Controller Reference Guide The information in this document is subject to change without notice No part of this document may be reproduced or transmitted in any form or by any means electronic or mechanical for any purpose without the express written permission of 3M Touch Systems 3M may have patents or pending patent applications trademarks copyrights or other intellectual property rights covering subject matter in this document The furnishing of this document does not give you license to these patents trademarks copyrights or other intellectual property except as expressly provided in any written license agreement from 3M Touch Systems The information provided in this document is intended as a guide only For the latest detailed engineering specifications please contact your 3M Touch Systems Application Engineer 3M Touch Systems is committed to continually improving product designs as a result product specifications may be subject to change without notification Notice Given the variety of factors that can affect the use and performance of a 3M Touch Systems product including that solid state equipment has operation characteristics different from electromechanical equipment some of which factors are uniquely with2. Format Tablet is the format for the EX II 3000SP controller operating at 8 data bits only e Format Tablet uses only 5 bytes per point and provides a rapid response time e Format Tablet includes a status byte The status byte contains information on whether the X Y coordinate is generated from a touchdown a touch continuation when the finger is resting on the screen or a touch liftoff e Format Tablet is supported by all current 3M Touch Systems touch screen controllers e Format Tablet is the standard for current 3M Touch Systems product development and is the format used by all touch screen drivers written by 3M Touch Systems Operating Mode The operating mode specifies the conditions under which the controller sends the X Y touch coordinates input data packet to the host system Mode Stream is the default operating mode for the EX II 3000SP controller In Mode Stream the controller sends a continuous stream of data packets when the screen is touched The controller sends the data as long as a touch continues on the sensor Because Mode Stream sends touch data continually it 1s the most versatile mode and it provides the best response time and overall feel 3M Touch Systems recommends that the touch screen driver generate an event as each packet in the data stream arrives Because touchdown and liftoff events are specially coded your software can generate mouse events that correspond to what the user is doing Communi
3. Positive response After the controller is in Calibrate Raw mode touching the screen causes the controller to return a response in the following format SXxYy where S Status byte first byte of data Refer to Table 4 Xx X horizontal coordinate data second and third bytes of data Yy Y vertical coordinate data fourth and fifth bytes of data Table 4 Data Sequence MSB Bits LSB Data Sequence 7 6 5 4 3 2 1 0 S Byte 1 1 S6 Reserved X Byte 2 0 X3 X2 X1 XO Reserved x Byte 3 0 Xs X9 X8 X7 X6 X5 X4 Y Byte 4 0 Y3 Y2 Y1 YO Reserved y ByteS 0 Ys Yo Ys YT Y6 YS Y4 _ MSB Most Significant Bit LSB Least Significant Bit sign bit 3M Touch Systems Proprietary Information 26 EX Il 3000SP Controller Reference Guide Table 5 describes the meaning of the bits in the status byte Byte 1 Table 5 Calibrate Raw Status Bits Bit Description Values S0 55 Reserved S6 Proximity 1 Touch screen is being touched a touchdown touch state or a continued touch 0 Touch screen is not being touched a touch liftoff or inactive When the proximity bit changes from to O touch liftoff the controller outputs one final set of X Y coordinate data with the bit equal to O and the X Y coordinate data equal to the last touch point S7 Packet Always 1 synchronization Finger Only Syntax lt SOH gt FO lt CR gt Description The controller is set to only respond to finger touches and disable the TouchPen Respons
4. Systems controller P5 EX II 3000SP Xxxx Four ASCII characters that indicate the firmware version number in decimal format The first two characters represent the version number the last two characters represent the revision level For example 0800 means Version 8 Revision 0 that is 8 0 Pen Finger Syntax lt SOH gt PF lt CR gt Description The default setting for the EX II 3000SP controller It will recognize touch from either the TouchPen or finger Response lt SOH gt 0 lt CR gt Positive response Pen Only Syntax lt SOH gt PO lt CR gt Description The controller will disable finger touch and will only respond to the TouchPen Response lt SOH gt 0 lt CR gt Positive response Reset Syntax lt SOH gt R lt CR gt Description Initializes the hardware and the firmware causes the controller to stop sending data and recalculates the environmental conditions for example stray and offset values The Reset command also cancels the Format Raw and Calibrate Raw commands and returns the controller to normal operation 3M Touch Systems recommends that the host system issue a Reset command whenever the host system is powered on and is attempting to establish communication with the controller 3M Touch Systems Proprietary Information EX II 3000SP Controller Communications 31 Response The amount of time needed to execute a Reset command ranges from 225 milliseconds to 800 milliseconds Therefore the application program s
5. coordinates generated by the controller ESD Susceptibility 8KV Contact Discharge 27K Air Discharge ESD discharges to a 3M Touch Sensor connected to the controller MTBF by MIL Std 217F Calculation Touch Systems Parameters Accuracy vs Dynamic Temperature Change tested at 20 C to 60 C with a 0 5 C minute temperature ramp Touch Screen Compatibility Communications Protocol Compliant 40 C to 70 C 36 C 95 RH 50 C to 85 C 3 ms 16K x 16K 1 false touch allowed Normal Operation No false touches gt 600 000 Hours Maintained 1 Accuracy 3M Touch Systems Capacitive Sensors Serial RS 232 3M Touch Systems Proprietary Information
6. reprogrammability using software utilities and inherent APAC ungrounded capability This chapter covers the following EX H 3000SP controller specifications e Cable connections e Mounting requirements e Power requirements and options e Status LED codes Overview of the EX Il 3000SP Touch Screen Controller The EX II 3000SP is a form fit and functional replacement for the TP4 controller 64 68 with a standard RS 232 serial interface The EX II 3000SP controller touch screen stylus and cables are supplied separately 3M Touch Systems Proprietary Information 10 EX II 3000SP Controller Reference Guide Figure 1 Components of the TouchPen System To effectively integrate and test the EX II 3000SP controller you will need the following items e A3M Touch Systems TouchPen P N 69 502 with 7311420 cable extension to connect to controller A complete integration kit is also available P N 69 900 e A3M Touch Systems touch screen e A method of establishing the serial data communication between the controller and your system The 3M Touch Systems RS 232 serial cable P N 7311273 is recommended e A method of supplying 12VDC internal power to the controller e A touch screen driver with an appropriate calibration routine Note You can use TouchWare which includes the touch screen device driver and utilities software as the software interface The controller measures 1 35 x 4 8 inches with a total height profile of 0 35
7. and Purchaser s exclusive remedy will be at 3M Touch Systems option to repair or replace that Product quantity or to refund its purchase price 3M Touch Systems has no obligation under 3M Touch Systems warranty for any Product that has been modified or damaged through misuse accident neglect or subsequent manufacturing operations or assemblies by anyone other than 3M Touch Systems 3M Touch Systems shall not be liable in any action against it in any way related to the Products for any loss or damages whether non specified direct indirect special incidental or consequential including downtime loss or profits or goodwill regardless of the legal theory asserted Copyright 2002 3M All rights reserved Printed in the United States Document Title EX IJ 3000SP TouchPen Controller Reference Guide Document Number 19 256 Version 2 0 MicroTouch the MicroTouch logo ChassisTouch ClearTek Microcal ThruGlass TouchPad TouchPen TouchWare TouchTek and ToughTouch are either registered trademarks or trademarks of 3M in the United States and or other countries Microsoft MS DOS Windows Windows NT and Visual C are registered trademarks or trademarks of Microsoft Corporation 3M Touch Systems Proprietary Information Chapter 1 Chapter 2 Contents About This Manual What You Need To KNOW einen R 5 Important Safety Informatio enai it Mice aie A 5 3M Touch Systems Support Services menesiena 6 3M Touch Systems Worldwide O
8. inches from the thru hole pins on the trace side of the board to the top of the highest component on the opposite side The EX II 3000SP has a touch screen connector a TouchPen connector and a serial cable connector 3M Touch Systems Proprietary Information Integrating the EX II 3000SP Controller 11 LED CRYSTAL EX Il 1000SC 0000000 1000 phones 000 a ea ga 1 S gt U4 AOOAOOOO 000OOOO 0008 EEI U6 o MMII U1 INPUT RS232 TOUCHPEN CONNECTOR TOUCH SCREEN CONNECTOR Figure 2 EX Il 3000SP Connector Locations Ke A000 U6 o MMM 1 N oO Oo c 0 225 Figure 3 EX Il 3000SP Overall Dimensions Establishing the Data Connection The EX II 3000SP controller requires that an RS 232 serial communication cable be attached to connector JP3 You can use a 3M Touch Systems RS 232 cable P N 7311273 One end of this cable plugs into the RS 232 connector JP3 on the EX II 3000SP controller The other end which has a 9 pin D connector plugs into a serial COM port on your PC Table 1 describes the interconnections for the 3M Touch Systems RS 232 cable 3M Touch Systems Proprietary Information 12 EX II 3000SP Controller Reference Guide Table 1 COM Cable for EX II 3000SP Controller PC Side 9 Pin D Wire Controller Side 7 Pin Molex JP3 Pin Color_ Pin Description _ __ a e 2
9. power on the system You should however recalibrate the touch screen any time the video display changes size or resolution or gets repositioned e You can restart calibration at any time during this sequence by issuing a Reset command and reissuing a CX command Determining Target Areas The default calibration targets points are located 12 5 1 8 inward from the corners of the video image For example suppose the display resolution of your monitor is 1024 x 768 The Calibrate Extended command calculates the amount to move inward as follows e Amount to move inward in the X direction 1024 x 1 8 128 e Amount to move inward in the Y direction 768 x 1 8 96 The Calibrate Extended command then positions the first calibration target inward from the lower left corner 0 767 and the second calibration target inward from the upper right corner 1023 0 The following illustration shows how the calibration targets are calculated 3M Touch Systems Proprietary Information 24 EX II 3000SP Controller Reference Guide 1023 0 1024 1024 895 96 Upper Right Calibration Target X 1023 1024 x 1 8 1023 128 895 Y 0 768 x 1 8 0 96 96 F 128 671 0 767 0 0 1024 0 Lower Left Calibration Target X 0 1024 x 1 8 0 128 128 Y 767 768 x 1 8 767 96 671 The coordinates are in video terms with the origin 0 0 in the upper left corner of the screen Exampl
10. ED Flashes l 2 3 EX II 3000SP Controller Reference Guide When you power up the unit the LED is bright until the controller start up sequence is completed Following start up the LED becomes dim and remains dim as long as you do not touch the sensor When you touch the sensor the LED becomes bright A flashing or blinking LED during power up indicates the controller s power on self test failed Refer to Table 2 for a description of each error code Table 2 LED Diagnostic Codes for EX II 3000SP Controllers Error Description Reserved Reserved Setup error Unable to establish operating range at power up Non recoverable error Controller NOVRAM error The operating parameters in the controller NOVRAM are invalid Using defaults HDW error The controller hardware failed unable to initialize or load program Non recoverable error Reserved Reserved Reserved Reserved Controller EEPROM not formatted Invalid controller block 5 Invalid controller block 6 What s Next What to do Replace controller If error reoccurs might be a touch screen problem Restore defaults RD command If fault persists replace controller If error reoccurs might be a touch screen or cable problem Replace controller Contact Tech Support or replace controller Not applicable to serial controller Replace controller Installing and Using TouchWare TouchWare includes the software driver that lets your tou
11. OH gt UT lt CR gt Description Responds with an 8 character identity string This string identifies the type of controller currently attached to the system lists the features supported by the controller and outputs the status of the controller hardware a self test code Response Returns an identification code up to 8 ASCII characters in the following format lt SOH gt TthfffSs lt CR gt where Tt Two ASCII characters that identify the controller type TP TouchPen controller Ffff Four ASCII characters that indicate the features supported by the controller meee Indicates no additional features configured Ss Two ASCII characters that provide status information about the controller hardware The two characters represent one byte Each character is in the range 0 to 9 and A to F Table 2 page 13 defines the meaning of each bit LED minus 1 in the status byte Each bit can be set to 1 or 0 where 1 Error 0 No error 00 No diagnostic errors normal response 3M Touch Systems Proprietary Information APPENDIX A EX Il 3000SP Controller Specifications This section provides controller specifications such as power requirements environmental requirements and cable connectors The EX II 3000SP controller is a compact 4 8 x 1 35 x 0 35 inches RS 232 serial controller This controller should be internally mounted in your monitor The following figures show the overall dimensions of the EX II 3000SP c
12. Wie 4 Receive data RXD E a e So Black 2 Ground also connects to grey wire PENG O NC ee ae 12V to orange wire Mounting the Controller The controller should be mounted on the chassis inside the monitor Supplying Power to the Controller You must supply the EX II 3000SP controller with power internally 12 VDC through a custom serial cable configuration Exact specifications can be found in Appendix A Note However you supply power the source must deliver gt 100 mA 12V 5 typical with a maximum ripple and noise of 50mV peak to peak Mounting posts should be grounded to the chassis Using a Custom Serial Cable Design When creating a custom serial cable connection you can provide power to the controller through the mating Molex connector 1 Obtain a 7 pin Molex connector 51004 0700 2 Attach power and return to the connector Pin 1 12V Pin 2 Ground 3M Touch Systems Proprietary Information Integrating the EX II 3000SP Controller 13 Mounting the Touch Screen There are several methods for mounting the touch screen depending on your application CRT displays or flat panel displays each in a variety of sizes If you need instructions or recommendations from 3M Touch Systems on how to incorporate a touch screen into your OEM design refer to the Touch Screen Kits Installation Guide P N 19 215 or the Flat Panel Display Integration Reference Guide P N 19 250 All 3M Touch Systems documentation is av
13. acter SOH The hexadecimal code for the ASCII SOH control character is 01 If you are working with an IBM PC compatible system in terminal mode the SOH control character returns a character to the screen The response which always follows the header is a range of ASCII characters depending on the type of command sent Responses can be in many forms For example one standard response is 0 ASCII character zero or 30 hexadecimal This response indicates a successful command completion for most commands while it indicates a failed completion for other commands See the firmware reference section for a description of what the response indicates for each particular command Another standard response is 1 ASCII character one or 31 hexadecimal In most cases this response indicates the command failed The controller received an invalid command that it could not execute Some possible reasons for a command failure include e The command was not formatted correctly e The system parameters were not set up to allow command execution e The controller does not support the command The terminator 1s the last character of each response string and is an ASCII carriage return CR The hexadecimal code for the ASCII CR control character is OD hexadecimal The value returned in the response will be the ASCII control character for a carriage return displayed on the screen as the cursor moving to the next line In this chapter resp
14. ailable from the corporate website at www 3Mtouch com or from the Touch Solutions CD P N 19 640 Handling and ESD Protection When mounting the sensor and controller use normal precautions for handling electrostatic sensitive devices The EX II 3000SP has internal protection to 27 kV for ESD discharges that may occur during normal operation of the touch screen Turning On Your System Before you turn on your custom system ensure that all cables are connected properly and that the controller is properly mounted Be sure to tighten all cable connector screws To start up your system 1 Turn on your monitor and computer 2 Adjust the contrast and brightness to suit your personal preference and working environment 3 Adjust the horizontal and vertical position controls on the monitor to center the image on the screen The EX If 3000SP controller has a light emitting diode LED on one edge of the board that indicates the status of the touch screen unit If the LED is on and remains dimly lit the controller has power and is operating properly If the LED 1s off the controller is not receiving power Status Light LED Diagnostics 3M Touch Systems controllers are highly reliable units however there may be occasions when the controller does not perform exactly as you expected The EX If 3000SP controller provides diagnostic feedback with an LED indicator on the controller 3M Touch Systems Proprietary Information 14 L
15. cating with the Controller This section provides information on sending firmware commands to the controller and interpreting the responses that the controller returns The EX If 3000SP command set is compatible with the TP4 controller and should not require modifications of existing software when replacing an older controller The commands listed in Table 3 are those that 3M Touch Systems currently uses for development 3M Touch Systems recommends that you use only these commands for EX II 3000SP controller development 3M Touch Systems Proprietary Information EX II 3000SP Controller Communications 19 Commands to the controller are sent on the signal Receive Data RXD line as a Serial data stream For each command it receives the controller sends a response to the host on the signal Transmit Data TXD line also as a serial data stream Sending Commands to the Controller When you send a command to the controller you must use the correct command format The general format of a command 1s as follows lt Header gt Command lt Terminator gt Note The following descriptions of header command and terminator use 3M Touch Systems terminal emulator key sequences You may need to enter the sequence in a different format depending on your emulator The header is the first character in the command string and is the ASCII start of header control character SOH The hexadecimal code for the ASCII SOH control character is 01 To start th
16. ch screen work with your computer 3M Touch Systems has touch screen drivers for many operating systems including Windows XP 2000 9x Windows Me Windows 3 1x and Windows NT Be sure to install the correct touch screen software for your operating system 3M Touch Systems Proprietary Information Integrating the EX II 3000SP Controller 15 TouchWare also includes a control panel for setting your touch screen preferences and a diagnostic utility If you are experiencing problems with the touch screen you can use the diagnostic utilities provided to locate the touch screen controller and test the touch screen For more information on connecting your cables and installing and using the touch screen control panel and utilities refer to the TouchWare User s Guide 19 224 All 3M Touch Systems documentation is available from the corporate website at www 3Mtouch com or from the Touch Solutions CD P N 19 640 Calibrating the Touch Screen Calibration aligns the touch screen with the underlying video Specifically calibration defines the dimensions of the image area of the touch screen determines the edges of the screen s video image and locates the center of the touch screen You must calibrate the touch screen by following the instructions on the screen and test the calibration to ensure accurate operation Using TouchWare you must perform a 25 point linearization with the TouchPen When complete you should perform a standard 2 p
17. e lt SOH gt 0 lt CR gt Positive response Format Raw Syntax lt SOH gt FR lt CR gt Description Returns the signal level amount of touch of each of the four touch screen corners in digital format The returned values are not corrected for stray values The Format Raw data is a 41 byte packet that includes 1 status byte and 40 bytes of binary corner data The first byte of each packet always has its high bit Bit 7 set to provide synchronization with the host system Refer to Table 6 for General Packet Formats Each corner data is composed of a pair of 32 bit I and Q values which are delivered in 10 bytes I and Q are complex touch currents as measured in phase and 90 degrees out of phase with the corner drive signal Refer to Table 7 for I Q Corner Components 3M Touch Systems Proprietary Information EX II 3000SP Controller Communications 27 To terminate Format Raw issue a Reset command The controller may return several bytes of data between the time you issue a Reset command and when the controller receives it You can either scan the data stream for the Reset acknowledgment or you can ignore the response to the first Reset command and then issue a second Reset after approximately 10 seconds has passed Use the Format Raw command for diagnostics Use Format Tablet for standard touch screen operation Response lt SOH gt 0 lt CR gt Positive response After the controller is in Format Raw mode the controller returns a re
18. e command sequence use the key combination Ctrl A A If you are working with an IBM PC compatible system the Ctrl A key combination immediately returns an ASCII character The command which always follows the header consists of ASCII uppercase letters and numbers only printable characters The terminator is the last character of each command string and is an ASCII carriage return CR An ASCII CR control character is OD hexadecimal To enter a carriage return ending the command sequence use Enter or the key combination Ctrl M 4M This chapter lists each command as a string of ASCII control characters and printable characters consisting of a header the command and a terminator as follows lt SOH gt Command lt CR gt Receiving Responses from the Controller After executing a command the controller returns a response or acknowledgment to the host system Each controller response consists of a header the command response and a terminator in the following format lt Header gt Command Response lt Terminator gt 3M Touch Systems Proprietary Information 20 EX II 3000SP Controller Reference Guide Note The following descriptions of header response and terminator use 3M Touch Systems terminal emulator key sequences The format of controller responses varies depending on the terminal emulation mode you are using The header is the first character in the response string and is the ASCII start of header control char
19. es from the controller s perspective however place the origin at the lower left corner of the screen numbers in brackets The controller outputs 0 to 1024 on both axes independent of display screen resolution Response Calibrate Extended Procedure To use the CX command 1 Enter the Calibrate Extended CX command The controller sends an initial acknowledgment of lt SOH gt 0 lt CR gt 2 Touch the screen at a lower left target which is located 12 5 1 8 in from the corner of the video image The controller returns an acknowledgment of lt SOH gt 1 lt CR gt This is a positive response If you receive a negative response lt SOH gt 0 lt CR gt you must start over again 3 Touch the screen at an upper right target which is located 12 5 1 8 in from the corner of the video image The controller returns an acknowledgment of lt SOH gt 1 lt CR gt This is a positive response If you receive a negative response you must start over again Touching the two valid calibration points results in a successful calibration If either calibration point is invalid the calibration fails The EX H 3000SP controller restores the factory default calibration If the Calibrate Extended failed repeat the CX process lt SOH gt 1 lt CR gt Positive response Indicates that the controller received a valid touch coordinate point when the target was touched Two valid touch points indicate a successful calibration lt SOH gt 0 lt CR gt Ne
20. executing them Important Safety Information Read and understand all safety information before using this product Follow all instructions marked on the product and described in this document Pay close attention to the following installation warnings and safety precautions 3M Touch Systems Proprietary Information 6 EX II 3000SP Controller Reference Guide Intended Use The EX If 3000SP TouchPen controller was designed to enable touch in conjunction with other 3M Touch Systems products and was tested to replace an existing controller This controller is intended for indoor use only and is not designed for use in hazardous locations To avoid the risk of fire and or explosion which could result in serious injury or property damage Do not install or use this product in a hazardous location Do not use this product in any outdoor environment Explanation of Symbols A Attention Read accompanying documentation 3M Touch Systems Support Services 3M Touch Systems provides extensive support services through our website and technical support organization Visit the 3M Touch Systems website at http www 3mtouch com where you can download touch screen software and drivers obtain regularly updated technical documentation on 3M Touch Systems products and learn more about our company Whenever you contact Technical Support please provide the following information e Part number and serial number from your monitor e Curre
21. ffices cccccceccceceeeeeessssesessseeeeees 7 Integrating the EX II 3000SP Controller Overview of the EX IT 3000SP Touch Screen Controller 9 Establishing the Data Connection cccccccccccceceeeeeesesseeseeeceeeeeeeeeaas 11 Mountine the Controller cicccoheecustnise a 12 Supplying Power to the Controller ccccccccccccceeeceeeeeeaaeeeeeeeeeeeeees 12 Modntinie he Touch Sore ieee E eluirdicosy 13 Torning On Your SysteM ee arii 13 status Licht LED Didsnosti Ssianin a ees 13 WAC S NER sessed ee ie etna sateen aaee eae eiausennsaaeeds 14 EX Il 3000SP Controller Communications Controller Defn Seta es 5 55 cies hia eld leases cee ae 17 Communicating with the Controller cccccccccccceeceeeeeessseeeeeseeeees 18 Summary of Firmware Commands cccccccceeeeeeeeeeeeessesessseeeeeeeeees 21 CADE AUS VCS Ciphers as ater eas tata e eh aa besa tea cabelas becssbosahaneatiees 23 OS UII E oS AE N E a sea E ee Ne eae 25 RL aab S12 ae Jail Qrapepenaerertentny A A T 26 Format Ri Wesa S 26 Format PADICI etek ciciasteacbantuatticcastusianssiecdateatinna ines acl uaesancueadvealan alee 28 Id Kota Lesea Wier 10 annem near ee armen be eae a denne gS Teme nT ee gre mine re 29 ITU lle Brey niin uch ile a eer oeee erent entenneranety T 29 Output Iden enp dyee ah onanas et enna lesson bance tate eea satan beatae 30 PeT OO era ee ree etna amen e a re 30 EONI a ic ier ne see eect me
22. gative response Indicates that the touch point is out of range of the expected target area If you receive a negative response you must start over again 3M Touch Systems Proprietary Information EX II 3000SP Controller Communications 25 lt SOH gt 2 lt CR gt Indicates that the user did not touch the target long enough to provide an accurate calibration point No Response Calibrate Raw Syntax Description Response lt SOH gt CR lt CR gt Allows the collection of raw signed X and Y coordinates prior to the normal scaling linearization and filtering processes The controller sends the coordinates whenever a touch is detected and continues to send a stream of data as long as a finger remains in contact with the touch screen The Calibrate Raw data is a 5 byte packet that includes 1 status byte and 4 bytes of binary X Y coordinate data Each X Y coordinate includes 10 binary bits and 1 sign bit The 10 bits represent coordinates within a range of 1024 to 1023 To use the Calibrate Raw command the controller and host system must be in an 8 bit data communication mode The Calibrate Raw command returns a negative response if the controller is not using an 8 bit communication mode To end Calibrate Raw mode issue a Reset command 3M Touch Systems uses the Calibrate Raw command during manufacturing and testing and recommends you only use this command for diagnostics when you want raw data lt SOH gt 0 lt CR gt
23. h Systems Proprietary Information 22 Command Name Code Pen or Finger PF Calibrate Extended CX Calibrate Raw Finger Only Format Raw Format Tablet Mode Stream Null Command Output Identity Pen Only Reset Restore Defaults Unit Type CR FO FR FT MS Z OI PO RD UT EX II 3000SP Controller Reference Guide Table 3 Firmware Commands for EX II 3000SP Development Description The controller recognizes both TouchPen and finger touch This is the default setting Initiates an interactive two point calibration Collects the raw X and Y coordinates prior to normal scaling linearization and filtering process The controller disables the TouchPen and only recognizes finger touch on the screen Returns the signal level amount of touch of each of the four touch screen corners in digital format Outputs the X Y touch coordinate data in a five byte packet Preferred for current development Sends a continuous stream of X Y coordinate data when you touch the screen Queries the controller and waits for a response Identifies the controller type and the firmware version The controller is set to only recognize input from the TouchPen and ignores any finger contact on the touch screen Initializes the hardware and the firmware causes the controller to stop sending data and recalculates the environmental conditions Note 2 pt calibration data is lost Returns the controller to t
24. h liftoff the controller outputs one final set of X Y coordinate data with the bit equal to 0 and the X Y coordinate data equal to the last touch Mode Stream Syntax Description Response point S7 Packet Always 1 synchronization lt SOH gt MS lt CR gt Sends a continuous stream of X Y coordinate data when you touch the screen The controller continues to send data as long as you touch the screen The controller sends the data even if the touch is stationary and unchanging The format of the coordinate data depends on the last format command received by the controller Format Raw automatically uses Mode Stream to send X Y coordinate data lt SOH gt 0 lt CR gt Positive response Null Command Syntax Description Response lt SOH gt Z lt CR gt Queries the controller and waits for a response Use Z to determine that you are communicating with the controller or to make sure that a utility is communicating with the controller Using this command does not affect the controller s current operating parameters lt SOH gt 0 lt CR gt Positive response 3M Touch Systems Proprietary Information 30 EX II 3000SP Controller Reference Guide Output Identity Syntax lt SOH gt OI lt CR gt Description Returns a 6 character identifier which describes the controller type and the firmware version number Response lt SOH gt CcXxxx lt CR gt where Cc Two ASCII characters that describe the type of 3M Touch
25. he factory default operating parameters Note the serial port is reset to N81 data format and 2 pt calibration data is lost Identifies the touch screen controller on your system 3M Touch Systems Proprietary Information EX II 3000SP Controller Communications 23 Calibrate Extended Syntax Description lt SOH gt CX lt CR gt Initiates an interactive two point calibration During the calibration process you define the active area of the touch screen by mapping locations to an absolute X Y coordinate system You touch two target areas on the screen Touching the target areas sends the X Y coordinates for those touch points to the controller The controller calculates all other touch points based on these two points The Calibrate Extended command sets the calibration targets points inward from the corner of the video image Setting the targets inward makes the calibration process easier and more accurate Guidelines for Calibrate Extended Here are several guidelines for using the Calibrate Extended command e The controller uses the data immediately before liftoff to register a calibration touch Therefore users can touch the screen move their finger to the target hold for one second and then lift off their finger Instructing users to touch this way results in a more accurate calibration e The controller stores the data in non volatile memory NOVRAM Therefore you do not have to calibrate the screen each time you
26. hould wait and be sure it receives the command response before issuing another command to the controller following the reset lt SOH gt 0 lt CR gt Positive response Restore Defaults Syntax Description Response lt SOH gt RD lt CR gt Returns to the factory default operating parameters The Restore Defaults command copies the 3M Touch Systems factory default parameters from ROM to the non volatile memory NOVRAM and then executes a Reset command Table 10 lists the factory defaults for the EX II 3000SP controller The Restore Defaults command is useful in situations where inadvertent commands to the controller have rendered the touch screen inoperative Table 10 EX Il 3000SP Factory Default Settings Operating Parameter Default Baud Rate 9600 Serial Communication Settings N 8 1 Data Format Format Tablet Operating Mode Mode Stream Return to Factory Calibration Yes The Restore Defaults command requires approximately 75 to 100 milliseconds plus the execution time of the Reset command 225 to 800 milliseconds Therefore the application program should wait and be sure it receives the command response before issuing another command to the controller After you issue a Restore Defaults command you must recalibrate your touch screen using a 2 point calibration lt SOH gt 0 lt CR gt Positive response 3M Touch Systems Proprietary Information 32 EX II 3000SP Controller Reference Guide Unit Type Syntax lt S
27. in User s knowledge and control it is essential that User evaluate the 3M Touch Systems product to determine whether it is suitable for User s particular purpose and suitable for User s method of application 3M Touch Systems statements engineering technical information and recommendations are provided for User s convenience but their accuracy or completeness is not warranted 3M Touch Systems products are not specifically designed for use in medical devices as defined by United States federal law 3M Touch Systems products should not be used in such applications without 3M Touch Systems express written consent User should contact its sales representative if User s opportunity involves a medical device application IMPORTANT NOTICE TO PURCHASER Specifications are subject to change without notice 3M Touch Systems Products are warranted to meet their published specifications from the date of shipment and for the period stated in the specification 3M Touch Systems makes no additional warranties express or implied including but not limited to any implied warranties of merchantability or fitness for a particular purpose User is responsible for determining whether the 3M Touch Systems products are fit for User s particular purpose and suitable for its method of production including intellectual property liability for User s application If a Product is proven not to have met 3M Touch Systems warranty then 3M Touch Systems sole obligation and User s
28. me ee RY CO eer RR NOE NCE 30 3M Touch Systems Proprietary Information Appendix A EX II 3000SP Controller Reference Guide BRS EREE A I AA A OII eerste seas A asa ae eee 30 Rectore Delfadlis oec te te hea et aes 31 MGT OS a E O 32 EX II 3000SP Controller Specifications Technical Specification S ss casei tues lesansh eed taen dicts E 34 3M Touch Systems Proprietary Information About This Manual 3M Touch Systems offers several advanced touch screen controllers designed for reliability and easy installation Each controller provides superior performance and delivers excellent stability sensitivity accuracy and fast response This reference manual directed to developers of touch screen systems provides installation and configuration information for the 3M Touch Systems EX If 3000SP TouchPen touch screen controller This document includes information on integrating the EX II 3000SP controller into your design communicating with the controller installing the TouchWare user interface software and troubleshooting setup problems It also includes a complete description of the firmware commands a guide to interpreting status LED conditions and a table of controller specifications What You Need to Know This document assumes you are familiar with firmware commands and how to use them Executing some commands may alter the performance of your touch product You should be aware of the results of using these commands before
29. n a 1024 by 1024 touch screen because data can fluctuate with each touch and therefore may not be completely accurate To use Format Tablet the controller and host system must be in an 8 bit data communication mode The Format Tablet command returns a negative response if the controller is in 7 bit format lt SOH gt 0 lt CR gt Positive response After the controller is in Format Tablet mode touching the screen causes the controller to return a response in the following format SXxYy S Status byte first byte of data Refer to Table 8 Xx X horizontal coordinate data second and third bytes of data Yy Y vertical coordinate data fourth and fifth bytes of data Table 8 Data Sequence MSB Bits LSB Data Sequence 7 6 5 4 3 2 1 0 S Byte 1 1 S6 S5 S4 S3 S2 S1 SO X Byte 2 0 X6 X5 X4 X3 X2 X1 XO X Byte 3 0 X13 X12 XII XIO X9 X8 X7 Y Byte 4 0 Y6 Y5 Y4 Y3 Y2 Y1 YO b4 Byte 5 0 Y13 Y12 YII Y10 Y9 Y8 Y7 MSB Most Significant Bit LSB Least Significant Bit Table 9 defines the status bits Byte 1 for the Format Tablet data 3M Touch Systems Proprietary Information EX II 3000SP Controller Communications 29 Table 9 Format Tablet Status Bits Bit Description Values SO S5 Reserved S6 Proximity 1 Touch screen is being touched a touchdown touch state or a continued touch 0 Touch screen is not being touched a touch liftoff or inactive When the proximity bit changes from 1 to 0 touc
30. nt driver version e Operating system used e Information on additional peripherals Technical Support is available Monday through Friday 8 a m to 8 p m US Eastern Standard Time 9 a m to 5 p m throughout Europe Limited service Saturdays and Sundays You can contact 3M Touch Systems Technical Support US only Eastern Standard Time by calling the hot line or sending a fax e Technical Support Hot Line 978 659 9200 e Technical Support Fax 978 659 9400 e Toll Free 1 866 407 6666 e Email US TS techsupport mmm com 3M Touch Systems Proprietary Information About This Manual 3M Touch Systems Worldwide Offices All offices can be reached through the website http www 3mtouch com e United States e Australia e Canada e France e Germany e Hong Kong China e Jtaly e Japan e Korea e Singapore e Spain e Taiwan e United Kingdom 978 659 9000 613 9582 4799 604 521 3962 33 1 45 13 90 304 49 0 211 599 07 0 852 2333 6138 39 039 2302230 81 44 811 1133 822 552 3198 65 3985608 34 93 415 6285 886 2 2659 8200 44 0 1235 444400 3M Touch Systems Proprietary Information CHAPTER 1 Integrating the EX Il 3000SP Controller The 3M Touch Systems EX II 3000SP controller provides a drop in replacement for the entire family of TouchPen controllers with all the improved features of the EX II chipset including wide dynamic range increased noise immunity wide operating temperature stability
31. oint calibration TWICE once with the TouchPen and once with your finger This will ensure that both input methods are accurate 3M Touch Systems Proprietary Information CHAPTER 2 EX Il 3000SP Controller Communications This chapter discusses the fundamentals of communicating with the EX II 3000SP controller Firmware commands are usually issued by a driver or utility program on the host system however developers can enter these commands directly This chapter e Describes the controller default settings e Lists the recommended firmware commands for current development e Describes how to use each of these commands e References additional commands developers may need The description of each command includes the command syntax the default value how the command works and the expected response from the controller Controller Default Settings This section describes the default communications parameters data format and operating mode settings for the EX H 3000SP controller Communication Parameters The default operation of the EX If 3000SP controller is N 8 1 no parity 8 data bits and 1 stop bits at 9600 baud It also can be programmed to work with even odd parity 8 data bits and 1 or 2 stop bits 3M Touch Systems Proprietary Information 18 EX II 3000SP Controller Reference Guide Data Format Data format refers to the type of packet the controller uses to send the X Y touch coordinates to the host system
32. onses are shown as a string of ASCII characters consisting of a header the response and a terminator as follows lt SOH gt Response lt CR gt 3M Touch Systems Proprietary Information EX II 3000SP Controller Communications 21 Summary of Firmware Commands Developers may use this information when writing touch applications developing custom drivers or touch configurations or testing their touch systems Developers can use firmware commands to initialize the controller select operating modes specify data formats and execute diagnostic functions Most touch screen users do not have to use firmware commands to use their touch systems For example users can use TouchWare to calibrate the touch screen or to determine the controller type and firmware version Caution This document assumes you are familiar with firmware commands and how to use them Executing some commands alters the performance of your touch screen and can render it inoperable You should be aware of the results before executing any firmware commands To optimize the performance of the EX II 3000SP touch screen controller and simplify the development of custom drivers 3M Touch Systems recommends you use the commands listed in Table 3 for current development Using these commands ensures compatibility with all 3M Touch Systems controllers Note When you enter commands in terminal mode precede each command with lt CTRL gt A to enter the start of header 3M Touc
33. ontroller and the locations of the mounting holes and connectors 8 1 350 S uL Z 0 750 aie 0 225 Figure 4 EX Il 3000SP Touch Screen Controller 3M Touch Systems Proprietary Information 34 Technical Specifications Description Physical Dimensions Size Weight Board Level Functions Power Regulatory Requirements CE Compliance EMC Emissions EN 55022 1998 EMC Immunity EN 55024 1998 ESD Susceptibility IEC 61000 4 2 EMI Immunity IEC 61000 4 3 Burst Immunity IEC 1000 4 4 FCC Class B CISPR22 Class B VCCI Class B ITE Emissions Japan EX II 3000SP Controller Reference Guide Specification 4 80 in x 1 35 in x 0 032 in 121 9 mm x 34 3 mm x 8 2 mm 55 grams 1 95 oz 20 5 grams 0 72 oz 12V Input 100 mA typical 110 mA maximum 5 regulation 50 mV maximum ripple and noise Compliant Compliant Compliant Compliant Compliant Compliant Compliant Compliant AS NZS 3548 1995 CISPR 22 Class B ITE Emissions Aus Compliant UL cUL Operating and Storage Environmental Conditions Operating Temperature Range max temp ramp 0 5 C min up to 95 RH from 0 C to 36 C up to 20 RH from 37 C to 70 C Operating Temperature Humidity Storage Temperature Range at up to 20 RH Performance and Reliability Minimum Touch Duration Touch Resolution Maximum number of addressable
34. sponse in the following format lt 4 1 byte packet gt lt 41 byte packet gt lt 41 byte packet gt Table 6 General Packet Formats Byte Bits 0 7 1 b0 b6 Reserved b7 Synchronization bit Always 1 2 6 I component of upper left UL corner 7 11 Q component of upper left UL corner 12 16 I component of upper right UR corner 17 21 Q component of upper right UR corner 22 26 I component of lower left LL corner 27 31 Q component of lower left LL corner 32 36 I component of lower right LR corner 37 41 Q component of lower right LR corner Table 7 1 Q Corner Components Byte Bits 0 7 N b0 b6 bits 0 6 of respective I Q corner data b7 Always 0 N 1 b0 b6 bits 7 13 of respective I Q corner data b7 Always 0 N 2 bO b6 bits 14 20 of respective I Q corner data b7 Always 0 N 3 b0 b6 bits 21 27 of respective I Q corner data b7 Always 0 N 4 b0 b3 bits 28 31 of respective I Q corner data b4 b7 Always 0 3M Touch Systems Proprietary Information 28 EX II 3000SP Controller Reference Guide Format Tablet Syntax Description Response lt SOH gt FT lt CR gt Outputs the X Y touch coordinate data in a 5 byte packet The packet includes status byte and 4 bytes of binary X Y coordinate data The protocol also establishes the X and Y coordinate output as 14 binary bits providing a range of 0 to 16 383 The low order bits X3 XO and Y3 YO are not significant i
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