Gtco MM II 1201 - Users Guide Manual de usuario

MM II 1 Chapter 1 Chapter 2 Chapter 3 Chapter 4 What is the MM II and How Does It Work? Section A: What is the MM II?

MM II 10 The clips attach to rails on the tablet underside. To attach them, push them straight on or slide them up from the bottom. Position the

MM II 11 The interface accommodates RS-232C and TTL. (Do not use both at the same time.) RS-232C – CITTL Interface: 25-Pin D Connector Pin Assignm

MM II 12 TTL Interface The computer port must provide full duplex, asynchronous, serial communications. The signal levels for data transmission ar

MM II 13 Binary Report Format Binary Format for Absolute Coordinates Binary Format for Relative Coordinates

MM II 14 Key:  LSB is the least significant bit. MSB is the most significant bit.  Fa, Fb and Fc are the flag bits. They identify the statu

MM II 15  Sx and Sy are the X and Y coordinate signs. 1 is positive and 0 is negative. In absolute coordinates, the sign is always positive.

MM II 16 Key:  X is an X coordinate digit, where each digit is an ASCII character from 0 to 9  “,” is an ASCII comma  Y is a Y coordinate

MM II 17  <CR> is an ASCII carriage return character.  <LF> is an ASCII line feed character. Chapter 4: Operating Characteristic

MM II 18 Section A: Controlling the Report Flow The primary functions that control the report flow are Point, Remote Request, Stream and Switch Str

MM II 19 Stream Mode In Stream Mode, the graphics tablet issues reports continuously, whether a stylus/cursor button is pressed or not. The Repor

MM II 2 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Appendix A Appendix B Appendix C Appendix D Reset (to Defaults) Send Confi

MM II 20 Maximum Report Throughput *Approximate rates. Throughput can vary with coordinate system and resolution setting. Increment Mode Command

MM II 21 square, the increment is met and the tablet transmits a report. This point becomes the center of a new imaginary square. The process rep

MM II 22 The points issued are: How to Use Increment Mode Send the mode command and then the increment value. The increment value is in counts (o

MM II 23 Checking the Increment You can confirm the increment setting with the zi command. Refer to Z Commands later in this chapter for addition

MM II 24 Axis Update Mode Command Sequence: <mode command><update value> ASCII command mode command update value G <SP> to z A

MM II 25 How to Use Axis Update Mode Before sending the mode command, place the stylus/cursor on the tablet at one of your desired grid intersectio

MM II 26 stylus/cursor button, the tablet reissues the last valid report twice, once the button is pressed and again when it is released. (The dif

MM II 27 Resolution, Definable (Set X, Y Scale) Command Sequence: <command><X low byte><X high byte><Y low byte><Y high

MM II 28 In this case, ensure the length of the corresponding tablet axis divides evenly into the other device’s resolution. If it does not, the

MM II 29 1030 decimal = 406 hexadecimal If the number is less from four digits, pack the left side with zeros. For example, 328 becomes 0328;

MM II 3 Chapter 1: What is the MM II and How Does It Work? Section A – What is the MM II? The MM II is a graphics tablet that acts as an input devi

MM II 30 When updating to relative coordinates, the lower left corner of the tablet becomes the active area origin. Stylus/cursor movement up and

MM II 31  Report Mode: Switch Stream  Report Rate: maximum throughput  Resolution: 500 lpi  Tablet Identifier: 0 After the tablet receives

MM II 32  Fa, Fb and Fc are the flag bits. They identify the status of the stylus and cursor buttons:  T is the Tablet Identifier, which is

MM II 33 The configuration report does not express the resolution in lines per inch or lines per millimeter. Rather, the resolution is expressed a

MM II 34 Transmission Control The Stop Transmission and Resume Transmission commands act as software gates, controlling data transmission from the

MM II 35 The z commands include a variety of functions. Some can be used to override the set up jumpers inside the tablet. To void a z command, s

MM II 36  Transducer identification: Command sends a character string to the host that identifies which transducer (stylus or cursor) is attached

MM II 37 Chapter 5: Guidelines for Writing a Device Driver For the computer to make use of the data being sent to it from the tablet, the software

MM II 38 The following flowcharts are for a MM II in the Bit Pad One configuration. Configure Host and Tablet  Structure the host communications

MM II 39 Report Collection – Interrupt Routines  Assemble the report: collect the report’s data bytes into an array  Check for errors

MM II 4 Section B: How the MM II Works MM II translates the stylus/cursor position on the tablet into digital information and communicates it to th

MM II 40 Cont.

MM II 41 Process Reports from the Tablet  Decode the report  Filter reports, if required by the application  Notify the application, if appli

MM II 42 Chapter 6: Using the MM II Follow these guidelines to maximize usage of the MM II.  You can tape things down to the tablet, including pi

MM II 43 Chapter 7: Checking the Graphics Tablet Section A: Power (and Proximity) Light The power light on the tablet serves two purposes. First,

MM II 44 The X and Y coordinates should increase as you slide the stylus/cursor up and right, as shown below. Section C: Diagnostic Functions Code

MM II 45 Echo Use Echo to ensure that the interface between the tablet and host is operating correctly. The tablet echoes (retransmits) character

MM II 46 A C D PR T Analog circuitry test; pass = 1, fail = 0 Stylus/cursor connection and coil test; pass = 1, fail = 0 Digital circuitry t

MM II 47 Chapter 8: Operating Environment, Care and Service Section A: Operating Environment Operate the MM II within these temperature and humidit

MM II 48 When contacting Customer Service, please have ready the unit serial number. The serial number is located on the bottom of the tablet. If

MM II 49 Section D: Changing the Stylus Refill To change the stylus refill, unscrew the cap and pull the refill straight out. Insert the new refil

MM II 5 As previously stated, reports are measured in counts of resolution. As shown below, each square is one count of resolution. The tablet re

MM II 50 Appendix A Specifications Physical Description Approximate physical dimensions: Width Length Maximum Height Weight 16 inches (406 mm) 17

MM II 51 Appendix B Changing the Set Up Jumpers This appendix describes how to change the set up jumpers inside the tablet that control certain ope

MM II 52 Notice that the bottom and top covers are held together by tabs on the bottom cover. 4. Turn the tablet on its side. Tap it gently aga

MM II 53 5. Lay the tablet upside down on the work surface. Grasp the side of the tablet that is still held together. Flex the top cover away fr

MM II 54 Changing Jumpers Change the jumper caps as you wish. The jumper caps are black plastic sleeves, open at two ends. To remove a cap, pull

MM II 55 Reassembling the Tablet 1. Ensure that the printed circuit board has not shifted or lifted out of position. It should be held gently in

MM II 56 Appendix C ASCII Conversion Chart

MM II 57

MM II 58

MM II 59 Appendix D Quick Reference of Commands and Defaults Command Summary

MM II 6 Reports are in absolute or relative coordinates. Absolute coordinates are coordinates measured from the tablet’s origin (0, 0). Relative

MM II 60 Defaults Axis Update Coordinate System Increment Origin Report Mode Report Rate Resolution Tablet Identifier 0, Axis Update Mode off Absol

MM II 61 Corporate Headquarters 14557 N. 82nd Street Scottsdale, Arizona 85260 Tel: 1-866-746-3015 Support: 1-866-746-3015 Fax: 480-998-1751

MM II 7 Chapter 2: Assembly and Installation The MM II package should include the following:  Tablet  Stylus or cursor  Interface cable  Po

MM II 8 2. Connect the tablet to the host and power source. Plug the interface cable modular connector into the socket at the top left edge of th

MM II 9 Plug the power supply into a standard electrical outlet. Use only an MM II power supply. Substituting a different power supply could perm