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- Path: menudo.uh.edu!barrett
- From: jhines@csugrad.cs.vt.edu (hits" Hines)
- Newsgroups: comp.sys.amiga.reviews
- Subject: REVIEW: Digital Breadboard
- Followup-To: comp.sys.amiga.applications
- Date: 27 Mar 1994 22:56:00 GMT
- Organization: The Amiga Online Review Column - ed. Daniel Barrett
- Lines: 168
- Sender: amiga-reviews@math.uh.edu (comp.sys.amiga.reviews moderator)
- Distribution: world
- Message-ID: <2n52u0$re8@menudo.uh.edu>
- Reply-To: jhines@csugrad.cs.vt.edu (hits" Hines)
- NNTP-Posting-Host: karazm.math.uh.edu
- Keywords: science, engineering, electronics, circuits, simulation, freeware
- Originator: barrett@karazm.math.uh.edu
-
-
- PRODUCT NAME
-
- Digital Breadboard 1.1.8
-
- [MODERATOR'S NOTE: This review was updated on Mar 29, 1994.
- Search for the text "[UPDATE:" to find updated information.
- -Dan]
-
-
- BRIEF DESCRIPTION
-
- This product is a computer engineering simulator. It allows you
- to build up combinational logic circuits on screen and test them.
-
- This product may be found in the file util/misc/dbb118.lha on
- the Aminet ftp sites.
-
-
- AUTHOR/COMPANY INFORMATION
-
- Name: Dan Griffin
- Address: 2049 Tamarack Dr.
- Okemos, MI 48864
- USA
-
- E-mail: griffin@egr.msu.edu
-
-
- LIST PRICE
-
- Freeware.
-
-
- SPECIAL HARDWARE AND SOFTWARE REQUIREMENTS
-
- HARDWARE
-
- Works on the 68030.
-
- SOFTWARE
-
- Requires AmigaDOS 2.04 and reqtools.library.
-
- "Degrader" is recommended because for some reason the
- program is in PAL.
-
- [UPDATE: Dan Griffin, the author of the program, reports
- that "Digital Breadboard does not force PAL mode: it runs
- in NTSC or PAL. However, it does create a screen with a
- height of 440 pixels, so a modest overscan is recommended.
- Version 1.2 has a resizable window." - Dan]
-
-
- COPY PROTECTION
-
- None.
- Installs on a hard drive.
-
-
- MACHINE USED FOR TESTING
-
- Amiga 3000 / 25
- 10 meg ram (8 Fast, 2 Chip)
- Quantum 50 meg HD
- Quantum 425 meg HD
- Commodore 1950 monitor
- AmigaDOS 2.1
-
-
- INSTALLATION
-
- Dearchive the files (using "lha" or similar program) into
- a directory and you're set. It makes its own subdirectory.
-
-
- REVIEW
-
- I saw this announced in comp.sys.amiga.announce and I said to myself,
- "I could really use a program like this." I then downloaded it and tried to
- use it. It dearchived nicely into its own directory and was immediately
- available to run. After starting it the first time, I realized that I would
- need to boot in PAL mode to see the bottom of the screen.
-
- [UPDATE: See the "UPDATE" in the section SPECIAL HARDWARE AND
- SOFTWARE REQUIREMENTS, above, for more information. - Dan]
-
- Now after using the program for about 2 hours, I find that it is a
- very good program for designing digital logic circuits. I am currently
- taking an Introduction to Computer Engineering course and I was easily able
- to put examples from the book into the DBB and see them work. There are
- also some example circuits that are neat to see.
-
- Some of the features of this program include, in no particular order:
-
- - multiple user definable clocks
- - printing of circuit designs
- - various logic functions include 2 and 3 input
- - and
- - or
- - nand
- - nor
- - xor
- - inverters
- - input and output indicators
- - logic probes
- - various flip flops including
- - j/k
- - s/r
- - d
- - ARexx port (hmmmmm)
-
- [UPDATE: Dan Griffin, the author of the program, reports
- that this version has no ARexx port. An ARexx port is
- planned for version 1.2, not available as of this writing.
- - Dan]
-
- - Many others that I cannot think of right now
-
-
- DOCUMENTATION
-
- Documentation is online in AmigaGuide format. You can also get
- printed documentation from the Author for $5 (US). Documents are also in
- text and TeX formats.
-
- The documentation is of good quality. However, it does not teach
- digital logic design. You should take a class for this or buy a good book
- from Radio Shack entitled "Getting into Electronics" for a start.
-
-
- LIKES AND DISLIKES
-
- I think that I like the ability to test digital logic circuits
- without having to wire them up on a real breadboard. Also you don't have to
- buy the chips to test them out: you can just use the electronic ones.
-
- I dislike the distance that the elements must be separated by. It
- kind of limits the number of items you can put in. Also there are only so
- many different types of logic that you can make. (and, nand, nor, etc.) The
- program could use some user definable logic functions (which the author
- promises for the next version).
-
- I would like to see a variable sized grid on which the elements can
- be placed, user definable logic functions, and a NTSC version.
-
-
- COMPARISON TO OTHER SIMILAR PRODUCTS
-
- Compared to doing this kind of design by hand, this is great. I
- have not seen any other products with which to compare it.
-
-
- BUGS
-
- I have not found any bugs. This program runs smoothly. I did
- however crash the program once, but that is because I did not read all the
- documentation.
-
- [UPDATE: Dan Griffin, the author of the program, reports that
- version 1.1.8 has one bug in the wire routing, which is fixed in
- version 1.1.9 (soon to be uploaded to Aminet). - Dan]
-
- VENDOR SUPPORT
-
- Not applicable.
-
-
- WARRANTY
-
- No warranty is given (it's freeware, dammit).
-
-
- CONCLUSIONS
-
- I think that this is a very good product. I cannot wait for the
- next version to be released.
-
-
- COPYRIGHT NOTICE
-
- This review is hereby deemed freeware. :)
-
- ---
-
- Daniel Barrett, Moderator, comp.sys.amiga.reviews
- Send reviews to: amiga-reviews-submissions@math.uh.edu
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