Welcome to the Windows 95 driver demo for Servo To Go, Inc.'s ISABus Servo I/O card.This demo has two main purposes. First, it shows how easy it isto use our board and software. Second, customers who havepurchased our Servo I/O card should find this demo useful to testtheir hardware and find PID coefficients. The demo consists of: 1) A Windows 95 virtual device driver. Only the executable code is included, however, the source is available for licensing. 2) An example application, "vbtune," written in Visual Basic. We include both source and executable for "vbtune."This demo initially comes as a compressed file named vbtune.zip. We recommend you unzip it into an empty directory.Note that this demo works whether or not you have one of ourboards. If you don't have a board, motors are simulated; if youdo have a board installed and some servo motors attached, it runs yourhardware.When you install this demo, it will register itself with Windows95. So, you can uninstall it easily. Uninstallationinstructions are near the end of this document.Run "setup" to install the demo. Setup will create a directory,named c:\Program Files\vbtune by default (this can be changedfrom within setup). In the directory you should find: readme.txt -- This file. stgdrvr.vxd -- Windows 95 virtual device driver for I/O card frmvbtun.frm -- Visual Basic source frmvbtun.frx -- Visual Basic source header.bas -- Visual Basic source loadstg.bas -- Visual Basic source vbtune.vbp -- Visual Basic Project vbtune.exe -- Compiled version of Visual Basic program loadvxd.exe -- Program to load or unload a VxDYou don't need Visual Basic to run the compiled program. Whilethe compiled program needs several run-time libraries, all thesewere installed during setup. However, you will need VisualBasic 4.0 Professional to make sense of the source code.A shortcut to vbtune will be on your start menu. So, one way to runthe demo is: click Start -- Program -- vbtune.Briefly, "vbtune" drives a selected servo with a pulse or ramp,then graphs the resulting motion. Typically, you change the PIDcoefficients and try again, observing the new results."Vbtune" was designed to be self explanatory. As you drag themouse over a control, the box at the bottom of the frame willexplain what that control does. But here are two additionalhints to keep in mind: 1) Remember to "send" new coefficients tothe axis; they don't take effect until you do. 2) Make sure the"closed loop" button is selected; otherwise nothing interestinghappens.To uninstall this entire demo, go to Control Panel -- Add/RemovePrograms -- select vbtune from the menu of programs which can beuninstalled -- then hit the button Add/Remove.As the demo is uninstalled, you may get some warnings aboutdeleting some libraries (dll's or ocx's). If you haven'tinstalled anything since this demo, it is safe to delete allthese. If you've installed other stuff since installing thisdemo, there's a slight possibility that the new stuff decided touse libraries that came with this demo, but didn't register thefact correctly. This is rare, but it happens. You also no longer need the directory where you unzipped thesetup files. Delete it now, if you want. The original zip fileis sitting around somewhere on your hard disk too. You may wantto save it for a while (in case you want to show this demo to afriend), but, at some point, you'll probably want to deletethis too.Comments or questions to: Servo To Go, Inc. 8117 Groton Lane Indianapolis, IN 46260 Phone: 317 257-1655 http://www.servotogo.comNote: loadvxd.exe is Copyright (c) Vireo Software, Inc., BoltonMA. It may only be used in support of a VxD developed with theirsoftware, as stgdrvr.vxd was. It cannot be redistributedgenerally (i.e. it can only be used with this demo).