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Text File | 1986-10-14 | 13.6 KB | 421 lines

Page 2-1 DEMO.DOC DEMONSTRATION First be sure you have made a backup of the distribution disks. If you are not familiar with backup procedures, then this program may have less documentation than you will require, still why not try. To make a backup: 1. Boot the system. The system disk will be in drive A 2. Type DISKCOPY A: B: 3. In answer to the prompt load the distribution copies of DROEGE one at a time in drive A and new disks in drive B and hit any key as instructed. It is always good practice to write protect the disk you are copying from by covering the notch in the side of the disk with a protection tape. The copy process should end with the A prompt after you have answered N to the copy another? prompt. Replace the system disk in drive A and switch to the B disk by typing B: (Return). Leave the new copy in drive B which contains the files listed below and you are ready to start. You can check the directory by dir(return) when you have the B: prompt. This session is designed to give an overview of the design capacity of the DROEGE program. You will need the disk with the following files: DROEGE.EXE BRUN20.EXE SETUP.PCD SETUP.PCS DEMO.PCD DEMO.PCS Besides DROEGE you will always need BRUN20.EXE, SETUP.PCD, and SETUP.PCS to run. The disk containing these files can be removed after the program puts up its first menu. You would normally change to your job storage disk at this point. For this demo, you can run with the disk (disk 1) which contains the above files. First some conventions. In general, the line editing functions work in the standard way. That is you can use the back arrow to delete mistyped characters etc.. Most operations with DROEGE are done using the Function keys at the left of the IBM PC keyboard, which are designated F1 - F10. Cursor movement is controlled by the number keypad arrow keys at the right of the keyboard. We designate these KP1-KP9. We will indicate a particular keypress by *** Key in this demonstration, followed by the function menu that appears at the bottom of the screen after the keypress. Some items will be entered from the keyboard. We will indicate this by xxxxxx (ENTER), to indicate some keyboard entry followed by a carriage return. We suggest that you operate with a system disk in drive A and the DROEGE disk in drive B, with B the default drive. Hard disk owners have a number of options. Place the above disk in the default drive and type: DROEGE (ENTER). 1ENTER 2FILE 3PLOT 4SETUP 5SYMLIST The disk will whir for a few seconds and a copyright notice and the registered Page 2-2 owners name will appear. After you have seen the notice, hit any key and in a few seconds more the screen will turn blue(if you have a color monitor - you must at least have a color adapter). You will see a status line at the top of the screen and a command line at the bottom of the screen. Since we want a demonstration file ask for the file system by pressing the 2FILE function key: *** F2 1PUTFIL 2GETFIL 3 4LSTSET 5 This causes presentation of a new command line and a change in the status line to show that we are now at level 2 of the command tree. Since we want get a demonstration file we press the 2GETFIL function key: *** F2 1LODJOB 2LODLIB 3LSTSYM 4LSTLAB 5LSTKEY We want to load a job (more about jobs and libraries later) so we press the 1LODJOB function key: *** F1 We now get a message on the second screen line asking us to enter the requested file name. We want the file DEMO so type: DEMO (ENTER) 1LODJOB 2LODLIB 3LSTSYM 4LSTLAB 5LSTKEY The disk will spin for about 3 minutes (less if you have an AT) and then there will be a ten second pause while the program links the loaded symbols. A circuit will now start to draw at high magnification. We start with this display because it looks nice. You can see most of one IC and a few other components. We would normally only work at this magniffication to check for clearances. We can draw our layout on the screen with arbitrary scale. Select redraw by pushing F10. *** F10 1UP 7 2DWN 7 3SELECT 4SETUP 5ENTER A menu of previously set up layout views appears. We can set up 15 such views. Now let us look at the big picture. To select the big picture we use F1 and F2 to move up and down the display menu. We have preset and named various areas of the circuit area. Later we will tell you how to set up display areas to suit your design preferences. The closest rout to the big picture is to hit F2 once. 14 F1's would also get you there. Note that the number on the key changes to indicate the layout we have selected. *** F2 1UP 6 2DWN 6 3SELECT 4SETUP 5ENTER We now have the number of the item we want so we select it: *** F3 1LODJOB 2LODLIB 3LSTSYM 4LSTLAB 5LSTKEY The screen now clears and the entire circuit is drawn. This scale is too small for data entry purposes but is a good scale for planning the layout. Later we will show you how to turn off some of the levels to reduce the clutter. For now we see a small circuit with 14 IC's, 10 resistors, 10 capacitors and a connector. You will see funny lines hanging off the bottom of the layout. This is because it interconnects with another part of the circuit and these Page 2-3 components were entered with the two parts put together. For practical work we use an intermediate scale between the two shown so far. We will look at the upper left hand corner. *** F10 1UP 6 2DWN 6 3SELECT 4SETUP 5ENTER *** F2 *** F2 *** F2 *** F2 1UP 2 2DWN 2 3SELECT 4SETUP 5ENTER *** F3 1LODJOB 2LODLIB 3LSTSYM 4LSTLAB 5LSTKEY This layout is a good working size. If we have a larger job, we tend to break it up into working units of this size. Larger units take too long to redraw (we are working on that) and smaller units require too much work to connect them to their neighbors. With more resolution we would put more parts on the screen. The upcomming licensed version will support the EGA which provides four times the number of pixcells. This layout is part of a larger layout which we will now examine. This in turn is part of a still larger board which is too large to fit in the memory of this free version. We will now travel some distance through the key tree. In case you get lost, keep hitting F9 until the machine beeps, then answer anything but yes and you will be at the menu: 1ENTER 2FILE 3PLOT 4SETUP 5SYMLST You should then be able to pick up the trail through the demonstration. When it seems obvious we will now omit the command line. *** F9 *** F9 1ENTER 2FILE 3PLOT 4SETUP 5SYMLST You may recognize this at the entry command menu. We will move into the menu structure to look at a symbol. *** F1 *** F3 *** F3 *** F5 After F5 the machine beeps and we are asked to enter a symbol name. Upper and lower case are distinguished in symbol names so be sure to type in upper case: STRIP (ENTER) The screen clears. You may recognize the first part of the circuit drawn as the previous layout. You will notice that it is rotated by 90 degrees. This circuit is a mixture on a number of different techniques. It includes CMOS, LSTTL, VMOS, Bipolar, discrete components, a transformer, and even a relay. The left end is a digital bus with D/A converters. The middle section contains operational amplifies which control the high voltage power supply at the right hand end of the board. The circuit produces 8 killovolts at 2 ma. and is stable to 100 mv. RMS. Twelve different voltages are read back through an analog bus to a 16 bid A/D converter where signals are measured to 100 microvolt precision. The output voltage is controlled to within 100 millivolts of the selected value. You may explore this symbol by using F10 and selecting one of the setups starting with HV. The layout contains 25 integrated circuits, 110 other Page 2-4 components and 600 holes. Since the circuit takes two minutes to redraw on an XT you may wish to use the F9 key to abort a redraw while exploring. This layout is composed of 28 different symbols which are nested to level 4. That is some symbols call other symbols to level four. This layout contains only the symbols: HVBOTTOM HVSTRIP DIG-DAC These symbols are in turn composed of other symbols. Let us explore back to see how this is done. *** F9 *** F9 ... Enough times until the machine beeps and asks if you want to exit the symbol. Answer y. The machine beeps again and tells you it has closed the symbol. *** F9 1NEW 2*MAKE 3ORIGIN 4KILL 5OPEN *** F5 In answer to the question enter "PAD62S" PAD62S (ENTER) A square pad appears at the center of the screen. It is quite large. When we open a symbol we automatically scale it to fill the screen. While it looks like a simple square if we used the machine facilities to examine it we would find that it actually consists of four objects. It is a 62 mil square pad on layer one, which we arbitrarily define as the top side of the board. It is also a 62 mil pad on side 2, which we call the board bottom. It is a 15 mil drill spot of layer 3 which contains the drill information. Lastly it is an eighty mil pad on level 5 which we define as the solder mask. If it could, it would have an outline on level 4. These are strictly our internal conventions. As a user you are free to use the 12 layers any way you want. Now we will see how this is used in another symbol. *** F9 ... y to question *** F5 In answer to question enter "IC14U" IC14U (ENTER) Now we get a 14 pin IC outline. This was constructed from 14 of the previous symbols and a line on level 5 to show the package outline. *** F9 ... y to question *** F5 In answer to question enter "IC4073" IC4073 (ENTER) Now we see a new symbol made from the previous symbol. IC14U is our general Page 2-5 purpose 14 pin circuit. It is sort of like the old printed symbols use for tape layout. Now we have customized this one to parallel it's three internal gates to drive a high power VMOS transistor. We did this because we were not quite sure where we were going to place it and we wanted to drag around its interconnections with it. *** F9 ... y to question *** F5 In answer to question enter "HVBOTTOM" HVBOTTOM (ENTER) The high voltage section of the board now appears. You can find IC4073 at the lower left of this circuit. This is the end of this demonstration. You may hit F9 enough times, answering y to the questions to get back to the system. Later you may want to examine ALRM as above to look at a 1000+ component job. *** DROEGE (RETURN) To load DROEGE from system *** F2 To select file system *** F2 To get a file *** F2 To load a library (here insert disk with ALRM.LIB) *** ALRM (RETURN) To load library ALRM It will now take about 2.5 minutes to load and link this large board. *** F9 *** F9 To get back to the main menu. *** F1 Choose enter *** F3 Choose symbol *** F3 Choose create *** F5 Choose open ALRM (RETURN) To open the symbol ALRM - remember to enter in upper case. Depending on your computer and the particular version of DROEGE it will take up to 10 minutes to redraw this 12.5" by 16.6" circuit board. It should be obvious that this is an unworkable scale and that the redraw time is too long for this to be a useful program. The way we proceed on a large board like this is to break it up into a number of symbols. We work on the interconnections between symbols with only one or two symbols on the board, and at some usable scale. Now the redraw time is only a few seconds. When we have completed interconnecting a symbol, we remove it, making a note of its location. At the very end we put all the symbols back on the board and we are done. So that we almost never redraw the entire job. *** F9 To back out of the symbol Y (RETURN) To confirm exit from symbol *** F9 *** F9 *** F9 And we are back to the main menu *** F2 To do something with files *** F2 Choose getfil *** F3 LSTSYM will provide a symbol listing on the line printer of all the symbols used in making the board ALRM *** F9 *** F9 Gets us back to the main menu. We can now use the same Page 2-6 sequence as we used to open the symbol ALRM to open and examine any of the subsymbols used in ALRM *** F1 *** F3 *** F3 *** F5 AMP (ENTER) For example will get us the amplifier which is repeated 64 times on the ALRM board. The next section, TUTOR.DOC, will lead you through entering lines and creating symbols. Page 2-7