ENSC 204—Assignment SCH1 - School of Engineering Science
Contents
1. ror NED TEZA SALY nea eq HDRI 24 HDRL era U2 LOT A Signal 1 0 HDR2 iz RL ey 10 05 02 fred 204 02 ASGN SCHI 2002R1 doc 11 Signal LE RN1 EZEN U2 LETA Signal X RI L2 IX 2 Ta Signal X0 HDR1 ULEN U2 REZA Signal XII HDR1 EIN U2 ESA Signal X2 HDR1 EDT N U2 19 Signal X3 HDR1 VEN U2 lot A Signal X4 HDR1 gr x 2 KL Signal X5 HDR1 LET N U2 6 Signal X6 HDR1 13 EN U2 GY Signal X7 HDR1 KN U2 mr 10 05 02 fred 204 02 ASGN SCH1 2002R1 doc 12 1 of 8 Addressable Analog Mux U2 74HC4351 8 BiDi Analog channel lt lt gt X X7 Signal lines pull up HDR1 HDR2 3 F to AC1B7B signal computer I F channel select i via ribbon cbl address A B C b ng daughter 2 address latch enable EN1 EN2 BiDi analog lines X will handle Signals within the 5V supply range TITLE Computer Addressable Mux for AC187B Signal Processing Sustem FOR ENSC284 Intro Schematic Exercise DATE TIME 19 84 2001 11 57 52a SHEET 1 1 REU 1 FILE Bus schi block DOCUMENT SFU School of Engineering Science 13 05 02 fred 204 02 ASGN SCH1 2002 doc 13 2 1 MTAL OSLB2 NOG TIO U2 HDR1 74HC4351N BXHDR26 5U 5U 5U TTT wort TT Tom yy CI c2 SU SU SNDD GNDD GNOA GNOA 18U T 1 u T DATE TIME 19 04 2001 12 82 56p SHEET 1 1 FILE Bus sch parts DOCUMENT SFU School of Enginee2. used In this case try to work on weaknesses not just strengths When students work in groups there s always a tendency for those with strong skill sets ina particular area to do all the work for that portion of the assignment just to get it done as quickly as possible This only serves to exclude the lesser skilled partners and hinder their development Please try not to let this happen in your group 10 05 02 fred 204 02 ASGN SCH1 2002R1 doc 1 IMPORTANT GENERAL COMMENTS FOR THIS ASSIGNMENT Lab Journal Please note that although ENSC 204 is not designated as a Lab Course per se the activities you will be performing in this assignment are lab related Therefore all notes calculations sketches should be maintained in your lab journal If you choose to work with loose pages these should be maintained in a manner such that all project group information remains together a binder or similar Be sure that all pages are appropriately organized and referenced with the date author s name group number and topic project title Common Schedule amp Learning Support To ensure that all group members have an equal opportunity to perform and maintain continuity with all aspects of this assignment your group should arrange a common time block between 0830 and 1600 Mon Fri when your group could meet at a prearranged location in LAB 1 In this way the instructors supporting this assignment can be approached for assistance if needed As
3. SCH1PART txt Power symbols are in the FSupply lbr Deleted symbols can be reinserted using the ADD command For this assignment you shouldn t need to add extra symbols to the drawing sheet General design rules to note a Connectors like HDR1 shall be placed with their pin orientation arranged in the same manner in which it would appear in the physical part or assembly in this case pin 1 top left as given This is a standard practice to avoid confusion b Component pin swapping is not permitted in this exercise You may find it somewhat beneficial to open the example schematics that come with EAGLE look in your Eagle directory for subfolder Examples These illustrate how busses may be used Don t study these too carefully they re not perfect and still use some symbols which are flawed these schematics haven t been altered since their creation in the early days of EAGLE the rest of 355R33 is just fine and has no bugs errors or stability problems Use the HELP option on EAGLE s top menu row to determine how to define busses One of the objectives of this assignment is to use busses where applicable to simplify and clarify the path of related signals Be sure to LABEL all signals and busses unless their function name is clearly implied to the reader To print EAGLE files File gt Print Settings scale factor 22 page limit 1 sheets 1 1 rotate black solid Always save amp make backups frequently WH
4. as an array of unconnected schematic symbols Use FILE gt SAVE_AS to save this file into your project target directory using the file naming format lt group 2digits SCH1 gt eg O5SCHI1 So far so good Now for the tougher part to create a representative ECAD schematic from the given netlist Using the printouts you ve assembled determine a reasonable starting arrangement for the parts on the screen You ll likely change and reorganize these a few times as the drawing takes shape Examine the Netlist and draw NETs between the symbols It s recommended that you carefully study the Netlist printout before getting too involved Then try to attack the bulk stuff first by determining single parts that have multiple pin interconnections and connect them up using the NET and BUS commands Cross off the nets on the printout as you complete them An array of Power and Ground symbols are supplied on the drawing sheet for your convenience If you have any extras after you ve got everything neatly connected exactly in the way want them you may delete them try not to be too hasty else you ll be burning your valuable time hunting through all the libraries to find the replacements For personal PC users work out of EAGLE Projects 204SCH1 For LabNet users work out of C temp making certain to back this up regularly to your diskette in drive A 10 05 02 fred 204 02 ASGN SCH1 2002R1 doc 3 Source libraries are given in file BUS
5. instructors we are sensitive the fact that you ll be struggling with a lot of new and potentially challenging concepts and possibly quite foreign software Obviously we wish to see you sort out the bulk of the problems you encounter as best you can using the reference materials available Lab Handbook handouts tutorial guides and the wealth of stuff available on the Cadsoft website www cadsoftusa com If you find that you are stuck or spending an unreasonable amount of time on any portion please contact one of the instructors for guidance or advise them of your difficulty before due deadline Current Revisions Although you should try to accomplish most of the assignment stages together as a group or sub group this may not always be possible Agree ona file naming convention for each assignment and its revision levels for your work files Use Email attachments to share your current revisions with the other members of your group Never leave any work on lab computers always back up to floppy or ZIP drives SOFTWARE REQUIRED EAGLE355r3 3 by CadSoft Computer ITEMS SUPPLIED 1 Assignment SCHI instructions 2 Assembled copies of the following files included within SCH1 instructions a bus sch1 net ASCII netlist b bus schl1 pin ASCII modified netlist may be useful c bus schipart txt library part listing d bus schi net scr Eagle ASCII script file a variation on the netlist EAGLE355 is installed on Engineering
6. track that you ve routed on the board and see what happens This annotation link is an extremely useful tool Please a ways remember however that once a board job has been started both the schematic and the board must always be open at the same time during an editing session EAGLE will warn you if are about to do something which may disrupt the link If you open only one either the schematic or board and make critical edits to it when the other is opened later the two will likely be out of sync and it ll take some serious tinkering to get them communicating again Good Luck 10 05 02 fred 204 02 ASGN SCH1 2002R1 doc 5 EAGLE Version 3 55r33 Copyright c 1988 1999 CadSoft Netlist a bus schl net exported from Bus schl sch at 22 03 2001 11 12 00a Net Part Pad Pin Sheet 5V CI 1 1 C3 2 2 1 HDR1 17 17 1 HDR1 23 23 1 RN1 1 1 U2 20 VCC 1 5V C2 2 1 C4 2 2 1 HDR1 26 26 1 U2 9 VEE 1 CSA HDR1 18 18 RN1 5 4 1 U2 15 A 1 CSB HDR1 19 19 1 RN1 4 3 1 U2 13 B 1 CSC HDR1 20 20 1 RN1 3 2 1 U2 12 G 1 EN1 HDRI 21 21 1 U2 7 SE1 1 EN2 HDRI 22 22 1 U2 8 SE2 GNDA HDR1 10 10 1 HDRI 12 12 1 HDRI 14 14 1 HDRI 16 16 1 HDRI 2 2 1 HDRI 4 4 1 HDRI 6 6 HE HDRI 8 8 1 HDR2 2 J 1 GNDD El 2 1 C2 1 1 C3 1 1 1 C4 1 T 1 HDR1 24 24 1 HDR1 25 25 1 U2 10 GND 1 10 05 02 fred 204 02 ASGN SCH1 2002R1 doc I O HDR2 1 2 d R1 T ni 1 LE RN1
7. 2 1 1 U2 11 LE 1 X R1 2 2 I U2 4 X 1 X0 HDR1 1 1 1 U2 17 X0 1 X1 HDR1 3 3 1 U2 18 X1 1 X2 HDR1 5 5 1 U2 19 X2 1 X3 HDR1 7 7 1 U2 16 X3 1 X4 HDR1 9 9 1 U2 i X4 1 X5 HDR1 11 11 ib U2 6 X5 1 X6 HDRI 13 13 1 U2 2 X6 1 X7 HDR1 1 5 15 L U2 5 X7 1 10 05 02 fred 204 02 ASGN SCH1 2002R1 doc EAGLE Version 3 55r33 Copyright c 1988 1999 CadSoft Pinlist c program files EAGLE355win projects 204 bus schl pin exported from Bus schl sch at 13 07 2001 10 38 59 Part Pad Pin Dir Net Cl 1 Pas 5V 2 Pas GNDD G2 1 Pas GNDD 2 Pas 5V C3 1 1 Pas GNDD 2 2 Pas 5V C4 1 1 Pas GNDD 2 2 Pas 5V HDRI 1 1 Pas X0 2 2 Pas GNDA 3 3 Pas x1 4 4 Pas GNDA 5 3 Pas X2 6 6 Pas GNDA 7 7 Pas X3 8 8 Pas GNDA 9 9 Pas x4 10 10 Pas GNDA 11 14 Pas X5 12 12 Pas GNDA 13 13 Pas X6 14 14 Pas GNDA 15 1 5 Pas XI 16 16 Pas GNDA 17 17 Pas 5V 18 18 Pas CSA 19 19 Pas CSB 20 20 Pas CSC 21 21 Pas EN1 22 22 Pas EN2 23 23 Pas 5V 24 24 Pas GNDD 25 25 Pas GNDD 26 26 Pas 5V HDR2 1 2 Pas I O 2 1 Pas GNDA R1 1 1 Pas I O 2 2 Pas X RN1 al C Pas 5V 2 1 Pas LE 3 2 Pas CSC 10 05 02 fred 204 02 ASGN SCH1 2002R1 doc 4 3 Pas CSB 5 4 Pas CSA U2 1 X4 Pas X4 2 X6 Pas X6 4 X Pas X 5 X7 Pas X7 6 X5 Pas X5 7 SET In EN 8 SE2 In EN2 9 VEE Pwr 5V 10 GND Pwr GNDD 11 LE In E 12 C In CSC 13 B In CSB 15 A In CSA 16 X3 Pas X3 17 X0 Pa
8. AT TO HAND IN Tn a reusable sealable folder of your choice bearing your group boldly in front 1 A printout of your finished ECAD schematic in landscape format 2 A1 44MB diskette a containing your final schematic file only in a directory folder named 2045CHI Be sure to use the file naming format lt group 2digits SCH1 gt eg O5SCHI b containing a folder named MEMBERS With a text editor ASCII format create a file containing the group number and the names student numbers and email addresses of your group members c with its contents verified to be virus freellll d labeled with your group number and ENSC 204 Summer 2002 Resubmissions If you are requested to correct aspects of your work for resubmission save your file into the appropriate folder on your diskette and name the file Group 2 digits gt lt SCH1 gt lt R gt lt revision gt eg O5SCHIR2 Keep your original file s intact making no further changes to it 10 05 02 fred 204 02 ASGN SCH1 2002R1 doc 4 OPTIONAL PWB EXTRA FOR KEENERS NO EXTRA MARKS This ll only take a few minutes and it s fun It ll also give you a better insight into the power of linked annotation and why schematic entry accuracy is of paramount importance Once you ve created your schematic in EAGLE and are confident that all is properly done type the command board on EAGLE s Schematic Editor window command line and hit J enter This should open a new window showing a r
9. ENSC 204 Assignment SCH1 Introductory Logic Schematic from Netlists Read this assignment carefully before you begin DUE Group Member List by Email 24 May 2002 Noon CAD Schematic General Office hand in 11 June 2002 OBJECTIVES To explore simple generic ECAD netlists and learn how they relate to ECAD schematic symbol interconnection To familiarize yourself with the selected ECAD software working environment and to develop some basic skills in completing a simple logic schematic Specific attention will be focused on using Nets Busses Net Labels junctions parts placement and arrangement symbol orientation and annotations ASSIGNMENT TASK DISTRIBUTION amp RESPONSIBILITIES A group appointed leader will organize and divide the tasks and co ordinate the group s efforts throughout this assignment This person will become the primary representative between your group and the instructor s and will be responsible for ensuring that the assignment is complete and handed in on time This is a role of responsibility intended to develop interpersonal as well as time and task management skills that will prove a valuable learning experience for future engineering courses and the real world Each group member must complete a fair and equal portion of every aspect of this assignment and should make an effort to develop skills in areas of non familiarity in order to gain a comfortable understanding of the subject matter concepts and tools
10. Science LabNet computers for your convenience The EAGLE files are available for download from the ENSC 204 website for those wishing to use this software on their own PC You ll need the ENSC document Getting Started with Cadsoft EAGLE355 filename EAGLESET pdf This assignment need not be accomplished in the lab but you must use the EAGLE355 software 10 05 02 fred 204 02 ASGN SCH1 2002R1 doc 2 e bus sch1 block sch Eagle schematic block diagram 3 bus sch1 parts sch Eagle schematic providing the unconnected parts 4 tutorial eng pdf Eagle tutorial 5 MC74HC4351N pdf datasheet if needed 2a e amp 3 reference only are part of this document 3 5 are separate files available on the ENSC204 Website DETAILED INSTRUCTIONS For private PC users Before commencing it is expected that you have downloaded or acquired the needed support files for EAGLE355R33 and have installed and configured EAGLE to suit the recommended preferences The steps for accomplishing this are given in the document Getting Started with Cadsoft EAGLE355 EAGLESET pdf 1 Print the working pages of this assignment pgs 1 14 2 Print optional items 4 amp 5 as previously defined 3 When steps 1 and 2 are completed you re almost ready to begin Start EAGLE FILE gt OPEN gt SCHEMATIC gt lt bus sch1 parts sch gt part of the emailed file set or from ENSC204 website This drawing contains the frame border and document field as well
11. ectangular board outline as well as a bunch of PWB parts footprints connected by a ratsnest of airwires Try moving the parts around and arranging them inside the board outline area keeping in mind that the maximum PWB dimensions are restricted to 100x80mm 4 x3 2 Keep the part s pads aligned on the 100mil grid points Using the Route command with the default track width setting of 16 try manually routing a few of the connections point point on the bottom layer Next start routing one track on the bottom layer to a desired transition point click left mouse button change the layer to Top and finish the connection Observe the automatic insertion of a via at the layer transition point Now on the command line type Ripup and hit u enter Ripup all You should be back to all airwires On the command line type Auto and hit u enter An Autorouter set up screen will appear Using the default settings select Start and see what happens Ripup the works again and try tinkering with the autorouter option settings especially in the Layer section Top and Bottom direction setting boxes You can also play with the Minimum Distance and Track settings and see what happens Don t play with the other settings some can foul things up pretty quickly refer to the EAGLE user manual for details on these settings Please observe that the board design is directly linked to the schematic with the schematic being the master Try deleting a component airwire or
12. ring Science 13 05 02 fred 204 02 ASGN SCH1 2002 doc 14
13. s X0 18 X1 Pas X1 19 X2 Pas X2 20 VCC Pwr 5V 10 05 02 fred 204 02 ASGN SCH1 2002R1 doc EAGLE Version 3 55r33 Copyright c 1988 1999 CadSoft Partlist a bus schlpart txt exported from Bus schl sch at 22 03 2001 10 59 30a Part Value Device Package Library Sheet CL 10u T CAPP RBTA1 C100RBTA FDEVICE 1 C2 10u T CAPP RBTA1 C100RBTA FDEVICE 1 C3 100n CAPNP CKO5 CK05 FDEVICE 1 C4 100n CAPNP CKO5 CK05 FDEVICE 1 HDR1 BXHDR26 BXHDR26 BXHD26 FCONNECT 1 HDR2 MTA100SL02 MTA100SLO2 PHIXO2SL FCONNECT 1 R1 1K00 RESUS 10 R 10 FDEVICE 1 RN1 10K RSIPBO4P RSIPO5 RESNETWK 1 U2 74HC4351N 74HC4351N DIL 20 F74XX lt 10 05 02 fred 204 02 ASGN SCH1 2002R1 doc EAGLE Version 3 55r33 Copyright c 1988 1999 CadSoft Netscript a bus schlnetscr scr exported from Bus schl sch at 22 03 2001 11 10a Signal 5v EL BETEN C3 121 HDRI ye N HDRI BN RNI 1 2 20 Signal 5V C2 i CQ 121 HDRI 26 172 91 Signal CSA HDR1 18 RNI 15 U2 ELE Signal CSB HDR1 19 RN1 ar Lug 13 Signal CSC HDR1 DOE N RN1 31 ga VEZI Signal EN1 HDRI FIT A U2 17 Signal EN2 HDRI 27 N U2 gr Signal GNDA HDRI To N HDRI YA EZ HDRI ILN N HDR1 ULET N HDR1 121 HDRI ar HDRI 6 N HDRI gr HDR2 24 ON Signal GNDD VET
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