AOH :: 8051.FAQ
8051 Microcontroller FAQ
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Archive-name: microcontroller-faq/8051
Posting-Frequency: monthly
Last-modified: June 27, 1995
This article is a collection of information sources on the Intel 8051
family of microcontrollers (and variants).
The following topics are addressed:
0) Rantings and ravings (to make the FAQ zero-based)
1) ABOUT THIS FAQ
1.1) Who put this FAQ together?
1.2) How can I contribute to this FAQ?
1.3) What newsgroups will this FAQ be posted to?
1.4) May I distribute this FAQ or post it somewhere else?
1.5) How about FAQs on other microcontrollers?
2) ABOUT THE 8051
2.1) The 8051 microcontroller
2.2) 8051 Flavors
2.3) 16-bit 8051 parts
2.4) 8051 representatives and approximate prices
2.5) Common and New 80x51 variants
2.6) Advantages realized in implementing control applications on
this family of microcontrollers
3) SOURCES OF INFORMATION ON THE 8051
3.1) FTP sites
3.2) BBSs
3.3) Help available!
4) 8051 PRODUCTS
4.1) Free languages and development tools
4.2) Free C compilers
4.3) Commercially available products
5) 8051 DOCUMENTATION
5.1) Periodicals
5.2) Books
5.3) Miscellaneous documentation
0) Rantings and ravings
Disclaimer: Just so it is understood, the "rantings and ravings" are
my rantings and raving. My readers are refined and sophisticated and
would never rant or rave. I, on the other hand, sit in front of the
TV in torn underwear and drink beer out of the bottle.
I'm in the process of updating the list of newsgroups that this FAQ
is posted to. As of now, it seems like it'll be:
comp.arch.embedded
comp.realtime
comp.robotics
sci.electronics
alt.comp.hardware.homebuilt
Others that might be considered are:
comp.sys.intel
comp.lang.forth
comp.lang.misc
comp.ai.fuzzy
comp.dsp
sci.engr.control
sci.engr.semiconductors
Please let me know what you all think. Consider both bandwith and
the problem of beginners trying to find what they're looking for.
Alfredo Knecht has pointed out to me that Sysoft SA no longer exists
(as of 1989 - and I thought this FAQ was up to date :-). Alfredo
used to be the head of product development at Sysoft, and he is
offering support for Sysoft's products. Contact him at:
KC Automation GmbH
CH-6991 Neggio, Switzerland
Fax: ++41-91591149
Email: akne@tinet.ch
The following was in last months FAQ, but the more I read this book
and follow the included source code on the diskette, the more I like
it:
Addison-Wesley has just released a GREAT new book, "Programming and
Interfacing the 8051 Microcontroller" by Sencer Yeralan and Ashutosh
Ahluwalia. I had actually reviewed the manuscript some time back,
and the book has now finally been released. This book contains a
wealth of information - it answers a lot of Frequently Asked
Questions that often appear in comp.robotics, sci.electronics, and
comp.arch.embedded. Among the some of the basic subjects covered
include: 8051 architecture, programming basics and techniques,
on-chip features, building your own 8051 system, and interfacing to
various peripherals. A section on hardware experiments contains
plans and code for: scanning a keypad, stepper motor control, a
frequency generator, measuring light and temperature intensity
(analog to digital), digital to analog conversion, DC motor speed
regulation, interfacing to intelligent Liquid Crystal Displays, and
implementing a multi-drop RS-485 network. The book comes with a
diskette containing an 8051 simulator and all source code for the
projects in the book. This is a must have book for the hobbyist or
professional. Available for $34.38, 352 pages, paperback, ISBN
0-201-63365-5. Run, don't walk, to your bookstore and get one now.
I mean it, this is a great book.
Vincent Himpe <Vincent.Himpe@ping.be> has been busy. No sooner did
he release his I2C FAQ, but now he's got a PCB (printed circuit
board) FAQ. Looks pretty good too. Way to go Vincent! His FAQs are
posted to sci.electronics, alt.hardware.homebuilt, comp.robotics, and
comp.protocols.misc (I2C).
If you haven't asked for your FREE "80C51 Microcontroller Pocket
Guide" (publication #9398-510-76011) from Philips, well, what are you
waiting for? This is really useful, and the price is right. To get
one, send your snail mail address to:
Philips-QuickRef@InetBSystems.us.com
Don't forget the Philips mini ftp site: ftp.zilker.net : /pub/philips
This site contains just a few files, but they're big zip files
containing most of the files found on the Philips BBS. Worthwhile if
you don't have access to the Philips BBS.
Also, make sure you get your copy of the newly republished
"80C51-based 8-bit Microcontroller Data Manual" from (yeah, you
guessed it) Philips. It now comes shrink-wrapped with the
"Application Notes and Development Tools for 80C51 Microcontrollers"
which contains a wealth of information on I2C, CAN, ACCESS.bus and
other application notes. This is a great set of books. Make sure
your mailman wears a truss. The publication number is 9397-750-00013
and can be obtained by calling 1-800-234-7381 in the US and
+31-40-783749 in The Netherlands.
Take care,
Uncle Russ
1) ABOUT THIS FAQ
1.1) Who put this FAQ together?
I was prompted to put this FAQ together in response to my own
frustration in searching for information, and to the constant
occurrence of requests for information on this subject in various
newsgroups. Hopefully others won't need to go through what I did.
Normally, I spend all day programming in assembler on an IBM PC.
With my hobbyist hat on I decided to try my hand at a little
microcontroller project design. When it came time to start, I had no
idea what to do. I had nothing to start with - no assembler, no
programming language, no simulator. I cobbled together a simulator
to help me learn about the workings of the chip. It's not being made
available to the public since I'm afraid the simulator isn't very
good. It was for my own use, so the user interface (there is none)
really sucks eggs.
I decided to search the net for information on the 8051. This list
was compiled the hard way, logging onto every anonymous ftp site I
could find and looking around. I also used Archie, other FAQs and
lists, and every reference to the 8051 that appeared in the various
news groups. It took a long time till stuff finally started popping
up. I saved all of my notes and the result was the first version of
this FAQ. Responses have been poured in, and the result is a much
more complete and thorough FAQ.
1.2) How can I contribute to this list?
I please ask that if you have any suggestions or additions, or you
would like to correct any of the information contained herein, please
send me a note.
My Email address is: russ@silicom.co.il
sibit@datasrv.co.il
My Snail-Mail address is:
Russ Hersch
HaVradim 11
Ginot Shomron
ISRAEL
The list of individuals who have sent suggestions and encouragement
has finally overflowed. I hope it suffices to say "Thank you to all
who have contributed to this FAQ - we all appreciate it."
Special thanks to recent contributors:
Carl Wall
Dave Dunfield (Dunfield Development Systems)
Dave Heller
Kevin Gardner (Philips)
Vincent Himpe
Jim Granville (Mandeno Granville Electronics, Ltd)
Ray Kahidi (Xicor)
Alfredo Knecht (KC Automation GmbH)
Simon Yates and Tiffany Moore (Addison-Wesley)
Jon Ward (Keil)
I hope that those of you who know of interesting items for the 8051
will share with everyone by contributing to this list. A good amount
of stuff is turning up thanks to everyone's help.
If you are a manufacturer and have an anonymous ftp site or BBS
available that supports the 8051, please let me know by EMail so that
I can add it to this FAQ. Also, please feel free to update me on new
products.
1.3) What newsgroups will this FAQ be posted to?
This FAQ will be posted to the following newsgroups:
comp.sys.intel
comp.realtime
comp.robotics
comp.lang.forth
sci.electronics
These newsgroups often contain discussions, announcements, or
information on the 8051. Check them out from time to time.
The schedule for posting will be once a month. I can't promise that
it will be on time, but I hope to post it on the 26th of each month.
You might also want to check out the following newsgroups, since they
quite frequently have discussions about the 8051 and other
microcontrollers:
comp.arch.embedded
alt.comp.hardware.homebuilt
A bit farther afield, but still of possible interest:
comp.lang.misc
comp.ai.fuzzy
comp.dsp
sci.engr.control
sci.engr.semiconductors
1.4) May I post this FAQ to my local BBS?
I am putting no restrictions on the use of this FAQ except - It must
be distributed in its entirety with the copyright notice, and no
financial gain may be realized from it. After all, I have spent, and
continue to spend, a lot of time on this. The only thing that I
intend to gain from it is more information on the 8051, and getting
to know my fellow 8051 groupies better.
For this reason I have appended a copyright statement to the end of
this FAQ. I feel pretty silly doing this, but I just want to protect
myself. The copyright does not limit the use of this list for
noncommercial purposes. I hereby give my permission to one and all
to pass this list around and post it wherever you want - as long as
it is not for financial gain.
Thank you.
1.5) How about FAQs on other microcontrollers?
If anyone wishes to start a FAQ on another microcontroller, please
feel free to copy the format of this FAQ - I don't intend on
copyrighting the look and feel ;-). With a common format, we will
all benefit when trying to find information on a particular
microcontroller.
Other Microcontroller FAQs
Subject: PIC microcontrollers
Newsgroups: comp.realtime
comp.robotics
sci.electronics
Maintainer: Tom Kellett
Email: Tom@takdsign.demon.co.uk
Subject: 68hc11 microcontrollers
Newsgroups: comp.realtime
comp.robotics
sci.electronics
Archive: rtfm.mit.edu : <plus all mirror sites>
/pub/usenet/comp.answers/microcontroller-faq/68hc11
/pub/usenet/sci.answers/microcontroller-faq/68hc11
/pub/usenet/news.answers/microcontroller-faq/68hc11
Maintainer: Russ Hersch
Email: russ@silicom.co.il
sibit@datasrv.co.il
Subject: Microcontroller primer and FAQ
Newsgroups: comp.sys.intel
comp.realtime
comp.robotics
sci.electronics
alt.comp.hardware.homebuilt
Archive: rtfm.mit.edu : <plus all mirror sites>
/pub/usenet/comp.answers/microcontroller-faq/primer
/pub/usenet/sci.answers/microcontroller-faq/primer
/pub/usenet/news.answers/microcontroller-faq/primer
Maintainer: Russ Hersch
Email: russ@silicom.co.il
sibit@datasrv.co.il
Additional FAQs of interest
Subject: I2C protocol
Newsgroups: sci.electronics
alt.hardware.homebuilt
comp.robotics
comp.protocols.misc.
Comments: The I2C bus is a simple 2 wire serial interface
developed by Philips. A number of 8051 variants as
well as several peripherals include I2C support.
Maintainer: Vincent Himpe
Email: Vincent.Himpe@ping.be
Subject: Robotics
Newsgroups: comp.robotics
Maintainer: Kevin Dowling
(412)268-8830
Email: nivek@ri.cmu.edu
Smail: Carnegie Mellon University
The Robotics Institute
Pittsburgh, PA 15213
Subject: Electronics
Newsgroups: sci.electronics
Comments: There are a number of FAQs available in this newsgroup
on various subjects. Among some of the subjects covered
are: LCDs, stepper motors, etc.
FAQ subject: Real-time
Newsgroups: comp.realtime, comp.answers, news.answers
Archive: rtfm.mit.edu : pub/usenet/comp.realtime
Maintainer: Mark Linimon
Lonesome Dove Computing Services
Roanoke, Virginia
Email: linimon@nominil.lonesome.com.
Subject: Motorola 68K microprocessor line
Newsgroups: comp.sys.m68k
Comments: without a doubt, one of the finest FAQs ever written
(well, of course Bob paid me to say this ;-)
Archive: bode.ee.ualberta.ca : pub/motorola/general
ftp.luth.se : /pub/misc/motorola/faq
file name of archive is m68kfaq?.zip (? is version)
Maintainer: Robert Boys - Ontario, Canada
Email: r.boys@genie.geis.com
or
fboys@uoguelph.ca
For more detailed information on various 8051 microcontroller parts,
see the article posted to comp.robotics and sci.electronics which
provides a tabular cross reference of features and pin counts on a
wide range of microcontrollers (including the 8051 family). This
list was compiled and is being maintained by Roger Nelson
<rnelson@wsuaix.csc.wsu.edu>.
For more information on various microcontrollers and their features,
refer to the Microcontroller primer and FAQ listed above.
2) ABOUT THE 8051
2.1) The 8051 microcontroller
The 8051 is an 8 bit microcontroller originally developed by Intel in
1980. It is the world's most popular microcontroller core, made by
many independent manufacturers (truly multi-sourced). There were 126
million 8051s (and variants) shipped in 1993!!
A typical 8051 contains:
- CPU with boolean processor
- 5 or 6 interrupts: 2 are external
2 priority levels
- 2 or 3 16-bit timer/counters
- programmable full-duplex serial port
(baud rate provided by one of the timers)
- 32 I/O lines (four 8-bit ports)
- RAM
- ROM/EPROM in some models
The 8051 architecture is a tad bizarre, but then so are the
architectures of most microcontrollers due to their specialization
(check out the PIC for creativity). One vexing problem with the 8051
is its very non-orthogonal instruction set - especially the
restrictions on accessing the different address spaces. However,
after some time programming the chip, you can get used to it - maybe
even appreciate it.
One strong point of the 8051 is the way it handles interrupts.
Vectoring to fixed 8-byte areas is convenient and efficient. Most
interrupt routines are very short (or at least they should be), and
generally can fit into the 8-byte area. Of course if your interrupt
routine is longer, you can still jump to the appropriate routine from
within the 8 byte interrupt region.
The 8051 instruction set is optimized for the one-bit operations so
often desired in real-world, real-time control applications. The
boolean processor provides direct support for bit manipulation. This
leads to more efficient programs that need to deal with binary input
and output conditions inherent in digital-control problems. Bit
addressing can be used for test pin monitoring or program control
flags.
2.2) 8051 Flavors
The 8051 has the widest range of variants of any embedded controller
on the market. The smallest device is the Atmel 89c1051, a 20 Pin
FLASH variant with 2 timers, UART, 20mA. The fastest parts are from
Dallas, with performance close to 10 MIPS! The most powerful chip is
the Siemens 80C517A, with 32 Bit ALU, 2 UARTS, 2K RAM, PLCC84
package, 8 x 16 Bit PWMs, and other features.
Among the major manufacturers are:
AMD Enhanced 8051 parts (no longer producing 80x51 parts)
Atmel FLASH and semi-custom parts
Dallas Battery backed, program download, and fastest variants
Intel 8051 through 80c51gb / 80c51sl
Matra 80c154, low voltage static variants
OKI 80c154, mask parts
Philips 87c748 thru 89c588 - more variants than anyone else
Siemens 80c501 through 80c517a, and SIECO cores
SSI 80x52, 2 x HDLC variant for MODEM use
Advanced Micro Devices (AMD)
AMD was one of the first manufacturers of enhanced variants
including such features as: dual data pointers, slave interface
with arbitration unit, dual port RAM, FIFO buffers, and others.
They are now out of the 8051 business.
Atmel
The smallest current device is the ATMEL 89c1051, a 20 Pin FLASH
variant with 2 timers, UART, 20mA. ATMEL was the first with
standard pinout FLASH, and with more program cycles than other
custom pinout FLASH. These parts compete with OTP and MASK
product on price, but eliminate inventory problems and the hidden
costs of OTP development. This will put real pressure on
"vanilla" micros like PIC and ST6.
Dallas Soft Microcontrollers - DS5000(T), DS5001(T), DS2250(T)
The Dallas Soft Microcontrollers have standard 8051 cores with
on-chip non-volatile RAM instead of ROM. This gives the user the
ability to easily alter the system and is perfect for data
logging. These processors are available in both chip and module
solutions. Among the features included in this family of
products:
- on-chip non-volatile RAM
- loader in ROM for downloading programs (eliminates the hassle
of EPROM erase/program/install cycle)
- built in real time clock option
- watchdog timer
- software security (program and data encryption)
The DS500x is a standard 40 pin DIP package (well, mostly
standard, it is really a BOX which is about double the height of a
normal chip). The DS225x is a SIP version which is functionally
identical to the DS5000 but usually a bit less expensive.
The nice thing about having the RAM on-chip, is that the I/O ports
are unaffected. When the RAM is configured as CODE memory, the
DS5000 behaves exactly as a single-chip 8051. The NV-RAM is
static with a built-in lithium battery, and has no limitations on
the number of writes. You can download your code as many times as
you like without damaging the device. The DS5000 also includes a
loader in ROM, which permits you to bootstrap code into the RAM to
get underway. The loader and on-chip RAM have an encryption
feature with which you can protect your code from being read back
from the device if you wish.
Dallas High-Speed Micros - DS80c320, DS87c520, DS87c530
Real barn-burners - performance up to 10 MIPS! Dallas was the
first to speed up the core. Wasted clock and memory cycles have
been removed using a redesigned processor core. As a result,
every 8051 instruction is executed up to 3 times faster than the
original for the same crystal speed. Clock speeds from DC to
33MHz!
High performance doesn't just mean speed. High integration gives
the user 2 full-duplex hardware serial ports, 13 total interrupt
sources (6 external), watchdog timer, power management, power-fail
reset, and other features.
Intel MCS-51
Introduced in 1980, it has become the industry standard for
embedded control. Intel offers a wide variety of 8051 versions
with different configurations of on-board EPROM/ROM. Also low
power, high integration, and specialized parts are also offered.
OKI
OKI makes an 85c154 piggyback - an 8751 but with an EPROM socket
on top! Great with an EPROM emulator.
Philips
Philips has more 8051 variants than anyone else. Among the
derivatives that they have: 40MHz, 24 pin skinny DIP, low
voltage, quad flat pack (QFP) versions for saving board space,
OTP, I2C bus, and so on.
The c5xx line features high integration, with many built-in
features including built-in EMI/RFI suppression.
The c7xx series are very low-end, inexpensive micros. They are
offered with less memory (1k, 2k, etc.) and fewer features. In
fact the 83c750 sells for only $1 in very high OEM volumes.
Siemens sab80c517a
The 80c517a is one of the most powerful 8051 variants available.
It features high clock speed (40 MHz), and high integration with
32 Bit ALU, 2 UARTS, 2K RAM, PLCC84 package, 8x16 bit PWMs, and
more.
Standard Microsystems Corporation SMC COM20051
The COM20051 is an integrated microcontroller and network
interface which features:
- high performance and low cost
- based on popular 8051 architecture
- drop-in replacement for 80C32 PLCC
- network supports up to 255 nodes
- powerful network diagnostics
- maximum 512 byte packets
- duplicate node ID detection
- self-configuring network protocol
- retains all 8051 peripherals including Serial I/O and
2 Timers
- utilizes ARCNET(R) Token Bus Network Engine
- requires no special emulators
- 5 Mbps to 156 Kbps data rate
- network interface supports RS-485, twisted pair,
coaxial, and fiber optic interfaces
- "receive all" mode allows any packet to be received
2.3) 16-bit 8051 parts
A joint project between Intel and Philips Semiconductors has resulted
in two new excting products - 16 bit 8051s! Due to a disagreement
between the parties, they each went their separate ways. Intel
developed the MCS-251, which was originally called the ZX (this name
can still be found on one of the Intel slide shows). Philips came
out with the eXtended Architecture (XA) line.
The Intel MCS-251 is a drop-in replacement for the 8051, and is also
binary compatible. The XA is more of a 16 bit micro which also
happens to be source code compatible. One can argue the merits of
which approach is better.
Pin compatible parts allow instant performance upgrades for existing
designs, and the binary compatibility truly preserves users
investment in code and tools. By staying firmly in the 80x51 camp,
Intel allows users transparent access to an enormous horsepower
range. To further improve throughput in numerically intensive areas,
users can use INTEGER, LONGINT, and FLOAT libraries written for the
MCS-251. The Philips XA is not a drop-in replacement for the 8051.
Binary code compatibility is nice, you can move right up to a more
powerful engine without having to bust a gut (We all know the Intel
binary compatible success story with their 80x86 microprocessors).
But if you're working on a new design, how necessary is binary
compatibility? If you're just looking for a souped up '51, Dallas
already has the 320. If you need the advanced features, you'll need
to recompile or rewrite your software anyhow. You'll also have to
drag along some compatibility baggage with you in order to use the 16
bit operations - these are preceded by an escape code (A5H), the only
instruction not used in the 8051 instruction set.
With source code compatibility, you have to recompile your code (with
a new set of development tools), since the instruction set has been
recrafted to allow the biggest bang for the buck. This process isn't
100% transparent, but then again, binary compatibility isn't either.
If you're upgrading an existing design, the 251 is probably your only
reasonable choice (although you might also want to consider the
Dallas 320). On new designs, you'll have a tough decision to make.
Whichever path you choose to take, the 8051 will never be the same
again.
Intel MCS-251
The Intel MCS-251 is 100% binary and pin compatible with the 8051,
but with a 5-15 times boost in horsepower. This is achieved by a
six fold gain in bus cycles, and further hardware improvements to
avoid wasted bus cycles.
Further performance gains are possible by recoding critical
sections to take advantage of the new features: powerful 8/16/32
bit instructions, flexible 8/16/32 registers, 16MB linear address
space, 16-bit stack pointer, enhanced BIT manipulations, and
improved control instructions. In addition to extra 16/32 bit
instructions, the 251 includes 40 registers with Accumulator and
Index functions overlayed as 16x8, 16x16, 10x32.
Philips 8051XA
By tossing compatibility out the window, Philips was able to
develop a true 16 microcontroller while at the same time
preserving the basic 8051 instruction set (source). The benefits
of this break with tradition result in a chip that has dual 16MB
address spaces (data and code), multitasking support with task
protected memory segments, a separate SFR bus, fast context
switching, and optimized code efficiency. Other features include:
hardware divide and multiply (over 100 times faster than an 8051),
32 vectored interrupts, 16 hardware exceptions, and 16 trap
instructions.
2.4) 8051 representatives and approximate prices (in USD $)
There are many, many varieties of 8051 out there. This is only a
small sampling of typical prices on Intel chips.
8031 (128 bytes RAM)...................................3.59
80C31 (CMOS version of previous).......................6.95
8051AH (256 bytes RAM).................................6.95
8051AHBASIC (w/Basic interpreter built in)............29.95
8751 (4K EPROM, 128 bytes RAM)........................26.95
87C51 (CMOS version of previous)......................39.95
2.5) Common and New 80x51 variants
Thanks to Jim Granville of Mandeno Granville Electronics, Ltd. for
this nice summary.
Variant Pins Mfg RAM CODE XRAM Notes
---------------------------------------------------------------------
MCS251 40 Intel 1K 16K 0 16 Bit 80x51FX Prelim
51C806 100 Siemens 256 64Kx 64b SIECO+CAN+appx 517A, faster
80C537A 84 Siemens 256 64Kx 2K ALU, 8 PWM, CaptComp 2UART,
10b A/D
80C517A 84 Siemens 256 32K 2K ALU, 8 PWM, CaptComp 2UART,
10b A/D
80537 84 Siemens 256 64Kx 0 ALU, 8 PWM, CaptComp 2UART,
8b A/D
80517 84 Siemens 256 8K 0 ALU, 8 PWM, CaptComp 2UART,
8b A/D
73D2910 100qfp SSI 256 128Kx 0 80C52+Ports+HDLC
80C535A 68 Siemens 256 64Kx 1K 515+10bA/D, 1K XRAM, BRG, OWD
80CE558 80qfp Philips 256 64Kx 768 Enhanced 80C552, Sep i2c, RSO
80C515A 68 Siemens 256 32K 1K 515+10bA/D, 1K XRAM, BRG, OWD
80535 68 Siemens 256 64Kx 0 Timer2, CaptComp, 6 ports,
8/10b A/D
80515 68 Siemens 256 8K 0 Timer2, CaptComp, 4 ports,
8b A/D
80C535 68 Siemens 256 64Kx 0 Timer2, CaptComp, 5 ports
8b A/D
80C51GB 68 Intel 256 64Kx 0 8051FA+PCA, 8b A/D, SPI
87C51GB 68 Intel 256 8K 0 8051FA+PCA, 8b A/D, SPI
80C592 68 Philips 256 64Kx 256 552-i2c+CAN+XRAM
87C592 68 Philips 256 16K 256 552-i2c+CAN+XRAM
87C598 80 Philips 256 32K 256 552-i2c+CAN+XRAM
80C552 68 Philips 256 64Kx 0 10b A/D, i2c, CaptComp, PWM
87C552 68 Philips 256 8K 0 10b A/D, i2c, CaptComp, PWM
80C562 68 Philips 256 64Kx 0 8b A/D, i2c, CaptComp, PWM
87C451 68 Philips 128 4K 0 7 Ports, 1 Handshake
80C451 68 Philips 128 64Kx 0 7 Ports, 1 Handshake
87C453 68 Philips 256 8K 0 7 Ports, 1 Handshake
83CL580 56,64 Philips 256 6K 0 LV 8052+ADC+i2c+More INTs, WDOG
SABC503 44 Siemens 256 64Kx 0 80C52+8Ch, 10bA/D, BRG, WD, OWD
80C320 40 Dallas 256 64Kx 0 FAST, 2 DPTR 2 UART VRST
80C310 40 Dallas 256 64Kx 0 Simpler 80C320 e62Mhz
87C520 40 Dallas 256 16K 1K 16K OTP enhanced 80C320
80C51FX 40 Intel 256 64Kx 0 80C58i+PCA, AsRST
87C51FA 40 Intel 256 8K 0 8052+PCA, Enh Serial, Automotive
87C51FB 40 Intel 256 16K 0 8052+PCA, Enh Serial, Automotive
87C51FC 40 Intel 256 32K 0 8052+PCA, Enh Serial, Automotive
8XC51FB 40 Philips 256 16K 0 87C51FB with ALE RFI mode
87C51FXL40 Intel 256 32K 0 3v3 80C51FC
80C152JD68 Intel 256 64Kx 0 HDLC/SDLC Serial
80C152 48 Intel 256 64Kx 0 SDLC Serial
8044 40 Intel 192 64Kx 0 RUPI Serial
80C575 40 Philips 256 64Kx 0 8052+PCA, AnalogComp, WDOG,
RSTLo
87C575 40 Philips 256 8K 0 8052+PCA, AnalogComp, WDOG,
RSTLo
80C576 40 Philips 256 8K 0 8052+PCA, UPI, A/D, PWM,
WDOG, VRSTLo
87C576 40 Philips 256 8K 0 8052+PCA, UPI, A/D, PWM,
WDOG, VRSTLo
SABC501 40 Siemens 256 64Kx 0 40MHz Enhanced 8052 U/D
SABC502 40 Siemens 256 64Kx 256 8052+XRAM+8DP+WD+BRG+OWD
80C528 40 Philips 256 64Kx 256 8052+Wdog, XRAM
87C528 40 Philips 256 32K 256 8052+Wdog, XRAM
89CE528 44 Philips 256 32KF 256 Flash 528
87C524 40 Philips 256 16K 256 16K 87C528
80C550 40 Philips 128 4K 0 8b A/D WDog
80CL781 40 Philips 256 64Kx 0 Low Voltage 8052, More INTs,
WDOG
83CL781 40 Philips 256 16K 0 Low Voltage 8052, More INTs,
WDOG
80CL782 40 Philips 256 64Kx 0 Low Voltage, faster 781
89C52 40,44 Atmel 256 8KF 0 FLASH, Fast,LV 87C52
87C54 40 Intel 256 16K 0 16K 87C52i
87C58 40 Intel 256 32K 0 32K 87C52i
87C52 40 Intel 256 8K 0 8052+U/D+OscO+4Li
80C154 40 Matra 256 64Kx 0 Enhanced 8052 (also OKI)
83C154D 40 Matra 256 32K 0 Enhanced 8052
83C154 40 OKI 256 16K 0 Enhanced 8052
80C654 40 Philips 256 64Kx 0 i2c
87C652 40 Philips 256 8K 0 i2c
87C654 40 Philips 256 16K 0 i2c
83CE654 44qfp Philips 256 16K 0 i2c, low RFI 654
DS5000 40 Dallas 128 32KR 32K 80x51 Secure + NV support,
BootLdr
DS2250 40sim Dallas 128 32K 32K As 5000, but smarter package
DS5001 80qfp Dallas 128 64Kx 64K Better 5000, + RPC + BatSw
80C851 40 Philips 128 64Kx 0 8051+256B EEPROM
83C852 6 Philips 256 6K 0 2K EEPROM SmartCard 80x51,
Die, ALU
8052 40 All 256 64Kx 0 8051+Timer2
8752 40 Intel 256 8K 0 8051+Timer2
80C52 40 Siemens 256 64Kx 0 8051+Timer2, Philips, Oki, Matra
88SC54C 8 Atmel 256 64Kx 512 8052+PublicKey,prelim
80CL410 40 Philips 128 64Kx 0 Low Voltage, More INTs, i2c-UART
80CL31 40 Philips 128 64Kx 0 Low Voltage, More Ints, 80x51
80CL610 40 Philips 256 64Kx 0 Low Voltage, More INTs, i2c-UART
83CL411 40 Philips 256 64Kx 0 80CL31 with 256 RAM, No T2
89C51 40,44 Atmel 128 4KF 0 FLASH,Fast,LV 87C51
8751 40 All 128 4K 0 Core processor, UART, Tmr0, Tmr1
87C51 40 All 128 4K 0 Core processor, UART, Tmr0, Tmr1
8031 40 All 128 64Kx 0 Core processor, UART, Tmr0, Tmr1
8051 40 All 128 4K 0 Core processor, UART, Tmr0, Tmr1
80C31L 40 Matra 128 64Kx 0 Low Voltage 80x51
87C752 28 Philips 64 2KE 0 87751+ A/D, PWM
87C749 28 Philips 64 2KE 0 87C752 - i2c
87C751 24 Philips 64 2KE 0 Small size, bit i2c
87C748 24 Philips 64 2KE 0 87C751 - i2c
87C750 24 Philips 64 1KE 0 Small size,
89C2051 20 Atmel 128 2KF 0 20Pin 89C51,+AnaComp+LED
89C1051 20 Atmel 64 1KF 0 20Pin 2051 -uart,timer1
--------------- FLASH summary ---------------
80C509F 100qf Siemens 256 128KF 3K FLASH Super ClkDbled 517A
80C517AF84 Siemens 256 64KF 2K FLASH 517A
80C515AF68 Siemens 256 64KF 1K FLASH 515A
89C558 80qf Philips 256 32KF 1K effectively a FLASH 552
88SC54C 68 Atmel 256 16KFE 512 FLASH 8052+PublicKey 8KF + 8KEE
89C52 40,44 Atmel 256 8KF 0 FLASH, Fast,LV 87C52
89C51 40,44 Atmel 128 4KF 0 FLASH,Fast,LV 87C51
89C2051 20 Atmel 128 2KF 0 FLASH 20 Pin 89C51,+ AnaComp+LED
89C1051 20 Atmel 64 1KF 0 FLASH 20Pin 2051 - uart, timer1
Special - DECT Phones, imagine what you could control with this...
PCA5097 100qf Philips 256 64KF 3K FLASH+CODEC+1K DSP+ADPCM
2.6) Advantages realized in implementing control applications on this
family of microcontrollers
Popular - readily available and widely supported, a full range of
free and commercial support products is available
Fast and effective - the architecture correlates closely with the
problem being solved (control systems), specialized instructions mean
that fewer bytes of code need to be fetched and fewer conditional
jumps are processed
Low cost - high level of system integration within one component,
only a handful of components needed to create a working system
Wide range - ONE set of tools covers the greatest horsepower range
of any microcontroller family, other suppliers handle a number of
DIFFERENT and INCOMPATIBLE (and often single-sourced) cores to cover
the same power range as the 80x51, the 8051 provides a real cost
savings in tools, training, and software support
Compatibility - opcodes and binaries are the SAME for all 80x51
variants (unlike most other microcontroller families)
Multi-sourced - over 12 manufacturers, hundreds of varieties,
something for everyone with the security of ready availability
Constant improvements - improvements in silicon/design increase speed
and power annually, 16 bit models coming from several manufacturers,
low cost skinny DIP models now available
3) SOURCES OF INFORMATION ON THE 8051
3.1) FTP sites
The following is a list of the various anonymous ftp sites that have
8051 source code and programming languages. There are many others
that are not listed here that contains bits and pieces. Usually you
can find them using Archie and searching for "8051", "AS31", "ASM51",
"MCS-51", "MCS51", and stuff like that.
ftp.pppl.gov (formerly lyman.pppl.gov)
- this is a great source of 8051 stuff
/pub/8051
/pub/incoming - check this out for new untested/unsorted items
ftp.funet.fi (nic.funet.fi)
- this is a great one, too
/pub/compilers/8051
/pub/microprocs/MCS-51 <mirror of ftp.pppl.gov>
other subdirectories in /pub/microprocs include:
1802, 6805, 6811, 8048, 8096 and many other microprocessors
ftp.intel.com
- this ftp site is pretty good now, and getting better all the
time!
- send comments to: ftp-admin@intel.com
/pub/mcs51
/pub/mcs51/tools - contains various development tools
nctuccca.edu.tw
- mirror of ftp.intel.com
- /vendors/Intel
Philips-News@InetBSystems.us.com - Email (not ftp)
- send Email with "subscribe" in the subject field to be put
on list for newsletter
Philips-archive@InetBSystems.us.com - Email (not ftp)
- send Email message with the word "help" in the subject line to
learn how to access the archive
Philips-forum-request@InetBSystems.us.com - Email (not ftp)
- send an Email message with the word "subscribe" in the subject
line to participate in the forum, and receive usage
instructions and guidelines
Philips-Info@InetBSystems.us.com - Email (not ftp)
- send Email message to get information on all of Philips Email
services
ftp.zilker.net
- /pub/philips
- Philips "mini ftp site" set up by Phil Wood of Philips
- lots of 8051 code and programming tools from their BBS
ftp.mcc.ac.uk
- this is a new 8051 ftp site
- soon to be improved
info@circellar.com - Email (not ftp)
- send Email to get information file on services available
- all Circuit Cellar INK and BYTE related files available
ftp.ee.ualberta.ca
/pub/cookbook/digital
- circuits of all types
- prog51.zip is a programmer for the ATMEL 89C51 flash part
by Werner Terreblanche
ftp.luth.se
/pub/languages/assembler
asterix.inescn.pt - FORTH archive
/pub/forth/8051
hpcsos.col.hp.com
/mirrors/.hpib0/forth/8051
/misc/ns32k/beowulf/a-8051
/mirrors/.hpib0/forth/eForth
ftp.armory.com (Steve Walz)
/pub/user/rstevew/8051
/pub/user/rstevew/TB8051
/pub/user/rstevew/incoming
ftp.oak.oakland.edu
- has information and software for a wide range of
microprocessors and microcontrollers, you may have to look
around a bit
130.123.96.9
giovanni/51forth.zip
ftp.kulnet.kuleuven.ac.be
/pub/MCS-51/keil-demo
ai.uga.edu
/pub/hardware
- stuff on the Philips 87C750/1/2 microcontrollers
- assembler, an update for the software in the DS-750 kit,
notebook of some early experiences and code
- responses welcome, Michael A. Covington (mcovingt@ai.uga.edu)
ftp.hte.com
- HiTech Equipment Corporation's ftp site
- information about their products including some sample code,
a free 8051 simulator, and various things from around the net
that relate to the 8051 family
csd4.csd.uwm.edu - no longer supports 8051, don't even try
awaiting final corporate approval... Philips Semiconductor ftp site
3.2) Web pages
S. Joel Katz's web page
- address is http://www.panix.com/stimpson/micro.html
- information about 8051 and related microcontrollers
- not much information yet, but it is increasing rapidly
Automation and Process Control (Olaf Pfeiffer)
- http://www.ba-karlsruhe.de/automation/home.html
- http://www.ba-karlsruhe.de/automation/FAQ
3.3) BBSs
The following BBSs have 8051 information:
AM Research
- (916)652-7117
Blue Earth Research
- support for their line of microcontroller boards
- (507)387-4007
Circuit Cellar, Inc.
- contains code from their magazine articles and from the
original Circuit Cellar articles in Byte magazine, also
contains many other interesting items
- GOOD STUFF HERE!
- The BBS is mentioned in the masthead of each issue (on the
table of contents page). Excerpts from the BBS appear in Ken
Davidson's ConnecTime column in every issue with a description
of how to access the system at the end of every column.
- (203)871-1988
- Voice: (203)875-2751
- Fax: (203)872-2204
Crossware Products
- +44 763 261716
Dallas Semiconductor
- Support for their line of innovative products
Dunfield Development Systems
- support for their Micro-C compiler and development tools
- includes a lot of nice goodies - CHECK THIS OUT!
- (613) 256-6289
Electronics Now
- contains code from their magazine articles
- (516)293-2283
- 1200/2400, 8N1
Intel American Marketing Applications Support Bulletin Board System
- 16 lines, hi-speed modems (14.4K)
- Lots of useful info and files (including design examples)!
- Full ANSI-BBS with color is recommended, but support for just
about all terminal types is provided
- (916)356-3600 (24 hours)
Auto config: 1200 thru 14.4K Baud
8 data bits, no parity, 1 stop
Iota Systems, Inc.
- Support for their line of hardware and software products
- 15 application notes which show how to hook up such things as
clocks, A/D, D/A, and special chips to the 8051
- (702)831-4732
Micro Computer Control Corporation
- (609)466-4117
Philips Semiconductor - Europe
- support for: standard logic, programmable logic,
in-car electronics (now open), 8 and 16 bit microcontrollers,
I2C software, third party software, discrete semiconductors,
cross assemblers (general), RF (planned)
- PHIBBS is located in the Netherlands: +31-40-721102
- maximum 21600 baud / V42bis / HST/Vterbo
- 24 hours a day available
- Help desk: +31-40-722749 (9.00 AM - 16.00 PM CET)
Philips Semiconductor - North America
- support for their 8051 variants
- contains many good source code items
- partially mirrored on ftp.pppl.gov and nic.funet.fi
- (800)451-6644 or (408)991-2406
PseudoCorp
- support for their line of simulators and assemblers
- (804)873-4838
Realtime Control & Forth Board (RCFB)
- Forth and assembly for the 8051
- 300 through 14.4 baud
- (303)278-0364 (24 hours)
Systronix Inc.
- support for their line of development tools
- (801)487-2778
3.4) Help available!
This is a new feature in the FAQ. Listed here are individuals who
have expressed interest in helping others with hardware and software
problems for 8051 systems.
Does any one else out there think that they can help? Just let me
know what your areas of specialization are and I'll add your name to
the list. Thanks!
Dick Barnett <barnettr@mace.cc.purdue.edu>
Specializes in 8051 (core processors), 80C552, and 87C751
applications.
Daniel Drennan <xixax@echonyc.com> or <xixax@echonyc.com>
He claims his electronics knowledge is very rudimentary and
self-taught (what a modest guy!). He'll probably be able to point
you in the right direction.
Mark Hopkins <mark@omnifest.uwm.edu>
Mark is the author of the CAS assembler and of the 8051.ZIP
programs. He's now working on JOLT, a code generator with a
C-like syntax. His areas of specialization include:
multitasking, interrupts, basic stuff (like addressing, memory
spaces), the 8052 BASIC chip, interfacing the chip with external
inputs and outputs
Hans Schou <chlor@biocat.ruc.dk>
Hans is offering his assistance to users of the Standard
Microsystems Corp. COM20051. He's not an expert, but he has some
experience with it.
4) 8051 PRODUCTS
This section includes descriptions and references to free and
commercial software for the 8051. FTP sites and BBSs contain many
quality packages and code samples for free. For heavy duty use, you
might prefer the many commercial packages that are available. With
the public domain (or free) stuff, you're usually on your own. The
commercial packages usually provide extensive documentation and
support.
4.1) Free languages and development tools
The following is a list of the languages and development tools that I
could find on the net. Nearly all of them include source code,
however not all are public domain.
Assembler
Program: ML-ASM51.ZIP
Description: MetaLink's 8051 family macro assembler
Location: ftp.pppl.gov : /pub/8051/signetics-bbs
ftp.funet.fi : /pub/microprocs/MCS-51/signetics-bbs
Program: A51.ZIP
Description: PseudoSam 8051 Cross Assembler
Location: ftp.pppl.gov : /pub/8051/signetics-bbs
ftp.funet.fi : /pub/microprocs/MCS-51/signetics-bbs
Program: AS31.ZIP
Description: C source for an 8051 assembler, and a simple monitor
Author: Ken Stauffer
Location: ftp.pppl.gov : /pub/8051/signetics-bbs
ftp.funet.fi : /pub/microprocs/MCS-51/signetics-bbs
ftp.uu.net
oak.oakland.edu : /pub/msdos/crossasm/as31.zip
many other locations (use Archie to find)
Program: CUG292WK.ZIP
Description: C source for a cross assembler, includes 8051
Author: Alan R. Baldwin
Location: oak.oakland.edu : /pub/msdos/crossasm
pc.usl.edu : /pub/msdos/systools
many other locations (use Archie to find)
Program: Frankenstein
Description: C source for a cross assembler, includes 8051
Author: Mark Zenier
Location: ftp.njit.edu : /pub/msdos/frankasm/FRANKASM.ZOO
lth.se : /pub/netnews/alt.sources/volume90/dec
ftp.uni-kl.de : /pub1/unix/languages/frankenstein.tar.Z
many other locations (use Archie to find)
Program: CAS 8051 assembler
Description: Experimental one-pass assembler for the 8051
with C-like syntax. Includes assembler, linker
and disassembler.
Author: Mark Hopkins
Location: ftp.pppl.gov : /pub/8051/assem
ftp.funet.fi : /pub/microprocs/MCS-51/csd4-archive/assem
Program: a51
Description: Portable cross assembler (source in C), other
processors available
Author: William C. Colley, III
Location: hpcsos.col.hp.com : /misc/ns32k/beowulf/a-8051
Basic
Program: BASIC52.ZIP
Description: Source files for original BASIC 52 interpreter
Author: Intel Corporation, Embedded Controller Operations
Location: ftp.intel.com : /pub/mcs51
Program: BAS051.ZIP
Description: Converts IBM BASIC to 8051 assembly (compiler)
Author: Winefred Washington
Location: ftp.pppl.gov : /pub/8051/signetics-bbs
ftp.funet.fi : /pub/8051/signetics-bbs
Program: BASIC-52.ZIP
Description: Source files for BASIC-52 interpreter
Author: Intel Corporation, Embedded Controller Operations
Location: ftp.pppl.gov : /pub/8051/signetics-bbs
ftp.funet.fi : /pub/microprocs/MCS-51/signetics-bbs
Program: BASIC31.ZIP
Description: BASIC-52 interpreter for 8031/8051 in external EPROM
Author: Intel w/ changes by Dan Karmann
Location: ftp.pppl.gov : /pub/8051/signetics-bbs
ftp.funet.fi : /pub/microprocs/MCS-51/signetics-bbs
Program: TB-51.ZIP
Description: TinyBASIC for 8031
Author: JHW (from Intel InSite library) w/ fixes by Tom Schotland
Location: ftp.pppl.gov : /pub/8051/signetics-bbs
ftp.funet.fi : /pub/microprocs/MCS-51/signetics-bbs
Program: TB51ML23.ZIP
Description: MetaLink ASM compatible tiny BASIC
Author: adapted for MetaLink assembler by Jim Lum
Location: ftp.pppl.gov : /pub/8051/signetics-bbs
ftp.funet.fi : /pub/microprocs/MCS-51/signetics-bbs
Forth
Program: EFORTH51.ZIP
Description: eFORTH environment for the 8051
Author: C. H. Ting
Location: ftp.pppl.gov : /pub/8051/signetics-bbs
ftp.funet.fi : /pub/microprocs/MCS-51/signetics-bbs
asterix.inescn.pt : /pub/forth/8051
hpcsos.col.hp.com : /mirrors/.hpib0/forth/eForth
Program: FORTH51.ZIP (FORTH86.ZIP used as host)
Description: FORTH development system for 8051 with PC host
Author: William H. Payne, the author of "Embedded Controller
Forth for the 8051 Family"
Location: ftp.pppl.gov : /pub/8051/signetics-bbs
ftp.funet.fi : /pub/microprocs/MCS-51/signetics-bbs
asterix.inescn.pt : /pub/forth/8051
hpcsos.col.hp.com : /mirrors/.hpib0/forth/8051
Program: XD8051.ZIP
Description: Development environment for use with F-PC Forth
Author: Paulo A.D. Ferreira
Location: ftp.pppl.gov : /pub/8051/signetics-bbs
ftp.funet.fi : /pub/microprocs/MCS-51/signetics-bbs
Program: 51FORTH.ZIP
Description: Subroutine threaded Forth
Author: Scott Gehmlich
Location: hpcsos.col.hp.com : /mirrors/.hpib0/forth/8051
130.123.96.9 : /giovanni/51forth.zip
Program: FORTH552.ZIP
Description: A Non-Standard Forth System for the Signetics 80C552
Author: Alberto Pasquale
Location: hpcsos.col.hp.com : /mirrors/.hpib0/forth/8051
Program: CamelForth/51
Description: ANSI Standard Forth for the 8051 family
Comments: This is an ALPHA TEST version
Author: Brad Rodriquez
email: bj@genie.com
amateur packet radio: VE3RHJ@VE3IJD.#CON.ON.CAN.NA
Location: taygeta.oc.nps.navy.mil : pub/Forth/Camel
(Be advised that there's also a Z80 CamelForth in the
same directory.)
Development systems
Program: 8051.zip
Description: Many development tools including: debugger, monitor,
LCD and stepper moter driver, communications, host
client, and much more. This is a great collection of
tools.
Author: Mark Hopkins
Location: ftp.pppl.gov : /pub/8051/signetics-bbs
ftp.funet.fi : /pub/microprocs/MCS-51/csd4-archive
Program: RISM and IECM51.EXE compatible host system
Description: RISM is a reduced instruction set monitor and
IECM51.EXE is its compatible host system for a PC
Comments: These two programs together constitute a bare-bones
method of developing 80C51 system code without an
emulator. RISM51X is installed in the target system
and connected to a host PC system through a serial port.
The host PC runs the debugger IECM51.EXE. Once the
system has been debugged, RISM can be removed and the
target can be run in stand-alone mode.
Author: Intel
Location: ftp.intel.com : /pub/mcs51/tools
Program: ApBUILDER 2.0
Description: Development system for the Intel MCS-51(R) family
(also for the MCS-96(R) family, 80x186, and 80x386
embedded microcontrollers).
Comments: Requires Windows 3.1
APBUILDR.TXT - description in ASCII
APBDISK1.EXE - binary self-extracting file for disk 1
APBDISK2.EXE - binary self-extracting file for disk 2
Author: Intel
Location: ftp.intel.com : /pub/mcs51 and /pub/mcs96
Program: FXDSMAN.EXE
Description: 8xC51Fx data sheets and manual in Windows 3.1
hypertext style
Comments: binary self-extracting file for one diskette
Author: Intel
Location: ftp.intel.com : /pub/mcs51/80c51
Program: sim51d
Description: Shareware Simulator in German
DM 50 to register for full version
Author: Werner Hennig-Roleff
Location: ftp.pppl.gov : /pub/8051/hannover
Program: sim552vq.zip
Description: 80C552 simulator (Freeware)
Comments: Program is capable of reading .HEX and .S19 records, or
saving memory to a file. It supports both code and
data. Written in Turbo Pascal for XT and upwards.
Author: Brian Brown
Location: cscnt.cit.ac.nz : /pub/msdos/sim552v1.zip
4.2) Free C compilers
Several commercial C compilers have evaluation versions available.
These are not too useful (even for hobbyist projects) since they
usually don't include libraries. However, they do afford the user
the chance to inspect the quality of the code generated. Among those
currently available:
An evaluation version of COMPASS is available from Production
Language Systems. This package includes a C compiler, assembler,
debugger, simulator, etc. and runs under Windows 3.1. This
package can be downloaded from the IntelC Compuserve forum or
from their BBS:
(817)599-8363
Enter YY8051 as password for first-time login
The Keil C compiler evaluation package is available as a freeware
C compiler. It can be downloaded from:
ftp.kulnet.kuleuven.ac.be : /pub/MCS-51/keil-demo
Thanks to Christofe Huygens for setting this up.
You can now get the freeware version of the Hi-Tech C compiler
from their own (rather modest) ftp site: ftp.hitech.com.au.
They are also working on a Web setup too, but it's not ready yet.
It will be the expected www.hitech.com.au when it's up.
Mark Hopkins has changed the goal of his compiler project. Instead
of implementing a C compiler, he is working on an implementation of
JOLT for the '51. Its main characteristic is the complete and
seamless integration of functional and imperative programming into
one language. The language envisioned essentially has a C syntax and
could probably be mistaken as being a dialect of C. More on this as
it develops.
However, the good news is that Ahmad Ibrahim informs me that he's
well on his way to putting together a C compiler which will be
released as freeware. The initial offering will generate code only
for the 8051. By making the compiler table driven, it will be
adaptable for other processors. Other features are in the works
including a simulator/debugger.
In most cases, it makes more sense to invest a bit, and get something
serious. Also, by buying a commercial package, you have the
advantage of having the documentation, and being able to get
technical support. There are two low-cost C compilers currently
available for 8051 development.
I've been using the Dunfield Development System, and its really quite
nice. I've also heard many good things about it from others. For
$100 you get a near ANSI-C compiler, run-time library with source,
assembler, ROM debugger, integrated development environment, monitor
with source, utilities, and other extras. A high quality simulator
for only $50 is also available separately. The simulator has an
option allowing you to interface to your target by using an on-chip
monitor. Although not freeware, the low price, the features, all of
the extra goodies, and the good reviews make this a package worth
looking at. Also, if you're interested in working on more than one
family of microcontroller, Dunfield supports a wide range. This
means only needing to learn one system, instead of many.
Another low priced ($100) C compiler comes from Micro Computer
Control. Cross compilers running under DOS are available for the
8051 and the Z8 (including Super-8). This package includes a C
compiler, assembler, linker, librarian, and extensive printed
documentation. A simulator/source code debugger is available for an
additional $79.95. The simulator is completely configurable, so much
so that you don't even need the target hardware to test with. You
can configure all I/O and other features of your target chip or
environment.
Micro Computer Control Corporation
PO Box 275, 17 Model Ave., Hopewell, NJ 08525
(609)466-1751 Fax: (609)466-4116 BBS: (609)466-4117
Email: 73062.3336@compuserve.com
4.3) Commercially available products
Many firms (large and small) offer a variety of 8051 microcontroller
variants, programming languages, support packages, and development
systems.
No endorsement is implied by inclusion in this list. I apologize to
anyone I left out; It's only because I didn't know about you. If
you want to be included in this list, just drop me a line - please.
Any corrections and additions appreciated.
C compilers ($$$ - high, $$ - medium, $ - low priced)
- 2500 A.D.
- Archimedes Software $$$
compiler, assembler, debugger, real-time kernel, ROM
monitor, libraries for special 8051's to set SFR, embedded
I/O devices, A/D, etc.
- Avocet Systems $$
repackaging of the Hi-Tech Software C compiler
- BSO/Tasking $$
- Crossware Products
- Dunfield Development Systems $
Complete C compiler development system for MS-DOS
includes: compiler, run-time library with source, assembler,
ROM debugger, integrated development environment, monitor
with source, utilities, and other extras
low price: $100
good reputation and good support
works well with the Dallas DS5000/DS2250
- Franklin Software $$$
same as Keil Electronics C
- IAR Systems
IAR tool kit comes with a C-Cross compiler, assembler,
Xlink linker, Xlib librarian, C-SPY simulator, editor,
make utility and a real-time kernel
formerly licensed for distribution in the US and Canada
under the Archimedes brand name
- Hi-Tech Software $$
high compliance to ANSI C
available for DOS and soon for SUN
- Intermetrics Microsystems Software, Inc.
Whitesmith's compiler, assembler, and C source level
debugger
- Keil Electronics
compiler, assembler, debugger, real-time kernel, ROM
monitor, libraries for special 8051's to set SFR,
embedded I/O devices, A/D, etc.
- Mandeno Granville Electronics, Ltd
SYS51C - ANSI C Cross Compiler
- Micro Computer Control $
Developer's kit includes "C"-like compiler, assembler,
linker, librarian, extensive printed documentation
low cost ($99.95)
- Okapi Systems
- Production Languages Corporation
DOS- and Windows- based compilers
Integrated development environment includes ANSI C compiler,
assembler, linker, librarian, debugger
- Signum Systems
Basic interpreters/compilers
- Binary Technology, Inc.
- Iota Systems, Inc.
Basic-752 interpreter (simulator also available)
Basic-52 Plus interpreter
- Micro Future
Basic-52 development system
- Systronix Inc. (Basic compiler)
Pascal
- Mandeno Granville Electronics, Ltd
PASCAL51 - Advanced Turbo PASCAL compliant cross compiler
- Scientific Engineering Labs
Modula-2
- Mandeno Granville Electronics, Ltd
Mod51 - optimizing Modula-2 Compiler, smallest program is 14
bytes, ideal for both very tight/fast projects and very
large ones with multiple modules, produces smaller/tighter
code than C, has extensive libraries and working examples
- Vail Silicon Tools, Inc.
PL/M
- BSO/Tasking
Board level products
- Ackerman Computers Sciences (ACS)
- AM Research
complete FORTH based system with PC based host system
- Binary Technology, Inc.
- Blue Earth Research
- Blue Ridge Micros (8031 and 8052-BASIC based boards)
- Circuit Cellar Inc.
- DataCraft International
- Dunfield Development Systems
- EE Systems
- Forth, Inc.
- HiTech Equipment Corp.
- Iota Systems, Inc. (line of development packages, boards,
peripherals, and components)
- J & M Microtek, Inc.
- L.S. Electronic Systems Design
- Mandeno Granville Electronics, Ltd
- Parallax, Inc.
- Prologic Designs
- Rigel Corporation
- Software Science
nice boards with prototyping area
- Suncoast Technologies
- URDA, Inc.
Assemblers
- 2500 A.D.
- Archimedes Software
- BSO/Tasking
- Crossware Products
- Custom Computer Consultants
- Cybernetics Microsystems
- Dunfield Development Systems
Supports both Intel and Motorola style syntax
- Intel Corporation
- Keil Electronics
- Lear Com Company
- Metalink
- Micro Computer Control
- Microtek Research
- Nohau Corporation
- Okapi Systems
- Onset Computer Corporation (8051 Assember for MAC)
- Parallax, Inc.
- PseudoCorp
- Raven Computer Systems
- Signum Systems
- Speech Technology Inc.
- Universal Cross Assemblers
CROSS32 supports 40-50 different processors
Forth
- AM Research
Development system, features kernel of less than 700 bytes
- Forth, Inc.
A cross-development product for the 8051 family
which includes a board and extensive documentation.
- Forth Systeme
- MPE: MicroProcessor Engineering Ltd.
A cross-development system for the 8051 family
extensive documentation
interactive single chip development, multitasking,
bank switching for more than 64k code
- Offete Enterprises
8051 eForth (C. H. Ting -- $25.00). "A small ROM based
Forth system ... Source code is in MASM IBM 5.25 disk
with 8051 eForth Implementation Note."
ROM Monitor-based Debuggers
- ChipTools (ChipView-51 looks like turbo debugger)
- Dunfield Development Systems
Can be used with DS5000 for single-chip in-circuit
emulation
Simulators
- 2500 A.D.
- Avocet Systems
- ChipTools
on a 33 MHz 486 matches the speed of a 12 MHz 8051
- Cybernetic Micro Systems
- Dunfield Development Systems
Low cost $50.00
500,000+ instructions/second on 486/33
Can interface to target system for physical I/O
Includes PC hosted "on chip" debugger with identical user
interface
- HiTech Equipment Corp.
- Hitex
- Iota Systems, Inc.
- J & M Microtek, Inc.
- Keil Electronics
- Lear Com Company
- Mandeno Granville Electronics, Ltd
- Micro Computer Control Corporation
Simulator/source code debugger ($79.95)
- Microtek Research
- Production Languages Corp.
- PseudoCorp
Emulators ($$$ - high, $$ - medium, $ - low priced)
- Advanced Micro Solutions $$
- Advanced Microcomputer Systems, Inc. $
- American Automation $$$ $$
- Applied Microsystems $$
- ChipTools (front end for Nohau's emulator)
- Cybernetic Micro Systems $
- Dunfield Development Systems $
plans for pseudo-ice using Dallas DS5000/DS2250
used together with their resident monitor and host debugger
- HBI Limited $
- Hewlett-Packard $$$
- HiTech Equipment Corp.
- Hitex $$
- Huntsville Microsystems $$
- Intel Corporation $$$
- Kontron Electronics $$$
- Mandeno Granville Electronics, Ltd
full line covering everything from the Atmel flash to the
Siemens powerhouse 80c517a
- MetaLink Corporation $$ $
- Nohau Corporation $$
- Orion Instruments $$$
- Philips $
DS-750 pseudo-ICE developed by Philips and CEIBO
real-time emulation and simulator debug mode
source-level debugging for C, PL/M, and assembler
programs 8xC75x parts
low cost - only $100
DOS and Windows versions available
- Signum Systems $$
- Sophia Systems $$$
- Zax Corporation
- Zitek Corporation $$$
Real-time
- Byte-BOS Integrated Systems
small, prioritized, preemptive real-time kernel
- Embedded System Products (formerly A.T. Barrett and Associates)
ROMable embedded-system kernel: source provided. Provides
programming interface identical on all target platforms.
Basic, advanced, and extended library packages available.
- Intellimap Engineering
DCE51 real time operating system
- JMI Software Systems, Inc.
small, prioritized, preemptive real-time kernel
- U S Software
SuperTask! - multitasking executive
Trainers
- Advanced Educational Systems (AES)
complete learning system (board, LCD, keypad, A/D, D/A, etc)
- Sun Equipment Corp.
trainers
Miscellaneous
- Creative Applications Engineering, Inc
CheepTools (integrated environment)
- Dallas Semiconductor
evaluation/development kit for their DS5000 (very nice)
- Data Sync Engineering (disassembler)
- Educational Laboratories
development courses:
8051 Microcontroller Based Computer Design
Programming 8051 Based Computers
each course $19.95, both $29.95
- Electronic Product Design, Inc.
development system (integrated package with assembler,
project manager, text editor, programmer)
- Exor Inc. (ladder logic compiler)
- Feger + Co.
offers a series of German language 8051 related books they
call `MC-Tools' describing the processors and/or projects
for PC-addin boards:
MC-Tools 1 - 80c535 project for DM 119; includes 260 page
book, an empty PCB, and a diskette with assembler,
debugger, PC-Oscilloscope
MC-Tools 4 - same as above but based on 80c537
MC-Tools 3 - Die 8051-Microcontroller Familie vom 8051 zum
80C517A; text book on the 8051 and Siemens derivatives,
360 pages.
MC-Tools 5 - handbook on the 80C517 and 80C517A, 360 pages
- Iota Systems, Inc.
integrated environment system
- Mandeno Granville Electronics, Ltd
PIC to 8051 conversion program
- Parallax, Inc.
programmers
- Quantasm Corp.
ASMFLOW - produces flowchart and tree diagrams from source
code, register usage analysis, Xref, timing info
- U S Software
USNET - TCP/IP networking suite
USFiles - file system
GOFAST - floating point library
- Xicor
SLIC2E microperipherals - wires up directly to an 8051 and
needs no glue logic, contains:
- 8K x 8 EEPROM in individual 4K segments
- 2 8-BIT I/O ports
- 16 8-BIT RAM registers
- Integrated Interrupt Controller Module
- Internal programmable address decoding
- code loaded at the factory allowing users to
download programs into EEPROM
Development Support package includes a DATA BOOK, a
SAMPLE of the CHIP (PDIP or PLCC, your choice) and PC
compatible software for downloading and testing your
programs. $15
Development system includes a populated board. $180
2500 A.D. 109 Brookdale Ave., Box 480, Buena Vista, CO 81211
(719)395-8683
Ackerman Computer Sciences (ACS)
4276 Lago Way, Sarasota, FL 34241
(813)377-5775 Fax: (813)378-4226
Advanced Educational Systems (AES)
1407 North Batavia Street, Orange, CA 92677
(800)730-3232 (714)744-0981 Fax: (714)744-2693
Advanced Micro Devices
901 Thompson Place, PO Box 3453
Sunnyvale, CA 94088-3000
(408)732-2400
Advanced Microcomputer Systems, Inc.
1321 NW 65th Place, Fort Lauderdale, FL 33309
(305)975-9515 Fax: (305)975-9698
Advanced Micro Solutions
1033 S Imperial Dr., Hartland, WI 53029
(414)367-3577
American Automation
2651 Dow Avenue, Tustin, CA 92680
(714)731-1661
AM Research 4600 Hidden Oaks Lane, Loomis, CA 95650
(800)949-8051 (916)652-7472 Fax: (916)6642
BBS: (916)652-7117
Email: sofia@netcom.com
Applied Microsystems
5020 148th Ave. N.E., PO Box 97002
Redmond, WA 98073-9702
Archimedes Software
2159 Union St., San Francisco, CA 94123
(415)567-4010
Ashling Microsystems Ltd
Ireland Plessey Technological Park
Limerick, Ireland
+353 61 334466 Fax: +353 61 334477
United Kingdom Butler House
19-23 Market Street
Maidenhead, Berkshire, UK
+0628 773070 Fax: 0628 773009
Atmel 2125 O'Nel Drive, San Jose, CA 95131
(800)365-3375 (408)441-0311 Fax: (408)436-4300
Avocet Systems 120 Union St., Rockport, ME 04856
(800)448-8500 (207)236-9055 Fax: (207)236-6713
Binary Technology, Inc.
PO Box 541, Carlisle, MA 01741
(508)369-9556 Fax: (508)369-9549
Blue Earth Research
165 W. Lind Ct., Mankato, MN 56001-0400
(507)387-4001 Fax: (507)387-4008
BBS: (507)387-4007
Blue Ridge Micros
2505 Plymouth Rd., Johnson City, TN 37601
(615)335-6696 Fax: (615)929-3164
BSO/Tasking
International 333 Elm Street, Dedham, MA 02026-4530
(800)458-8276 (617)320-9400 Fax: (617)320-9212
Europe Tasking Software BV
P O Box 899, 3800 AW Amersfoort, Netherlands
+31 33 558584 Fax: +31 33 550033
Business Data Computers
P.O. Box 1549, Chester, CA 96020
Byte-BOS Integrated Systems
P.O. Box 3067, Del Mar, CA 92014
(800)788-7288 (619)755-8836
ChipTools Inc (905)274-6244 Fax: (905)891-2715
Email: chiptool@hookup.net
Circuit Cellar Inc.
4 Park St., Vernon, CT 06066
(203)875-2751 Fax: (203)872-2204
Creative Applications Engineering, Inc
Ed Carryer
(415)494-2363 BBS: (415)494-8463
Crossware Products
2 The Lawns, Melbourn, Royston, Herts SG8 6BA, UK
+44 763 261539 Fax: +44 763 262983
BBS: +44 763 261716
Email: sales@crossware.com
Custom Computer Consultants
1807 Huron River Drive, Ypsilanti, MI 48197
Cybernetic Micro Systems
Box 3000, San Gregorio, CA 94074
(415)726-3000
Dallas Semiconductor
4401 S. Beltwood Parkway, Dallas, TX 75244-3292
(214)450-0448 Fax: (214)450-3715
International: (214)450-5351
Orders: (800)336-6933
Email: micro.support@dalsemi.com
DataCraft International
2828 Ione Dr., San Jose, CA 95132
(800)873-3709 (408)259-4866
Data Sync Engineering
POB 146, E. Stroudsburg, PA 18301
(717)421-1977
Dunfield Development Systems
P.O. Box 31044, Nepean, Ontario Canada K2B 8S8
(613)256-5820 Fax: (613)256-5821
BBS: (613)256-6289
Email: ddunfield@bix.com
EE Systems 50935 Hill Dr., Elkhart, IN 46514
(219)296-1754 Fax: (219)522-4271
Electronic Product Design, Inc.
6963 Bluebelle Way, Springfield, OR 97478
(503)741-0778
Embedded System Products (formerly A.T. Barrett and Associates)
11501 Chimney Rock, Houston, TX 77035-2900
(800)525-4302 (713)728-9688 Fax: (713)728-1049
Exor Inc.
4740T Interstate Dr., Cincinnati, OH 45246
(513)874-4665 Fax: (513)874-3684
Feger + Co., Hardware + Software Verlags OHG
Marienstrasse 1, D-83301 Traunreut, Germany
Forth, Inc. 1-800-55FORTH
Forth Systeme P.O. Box 1103, Breisach, Germany
7767-551
Franklin Software
(408)296-8051
HBI Limited
6F, 1 Fleming Road, Hong Kong
852-891-3673 Fax: 852-834-9748
Hewlett-Packard 1501 Page Mill Rd., Palo Alto, CA 94304
HiTech Equipment Corp.
9400 Activity Rd., San Diego, CA 92126
(619)566-1892 Fax: (619)530-1458
Email: info@hte.com ftp: ftp.hte.com
Hi-Tech Software
PO Box 103, Alderly QLD 4051, Australia
(+61-7) 300 5011 Fax: (+61-7) 300 5246
Email: hitech@hitech.com.au
Hitex
North America HiTOOLS Inc., 2055 Gateway Place, Suite 400
San Jose, CA 95110
(408) 451 3986 Fax: (408) 441 9486
http://www.hitex.com info@hitex.com
Germany Greschbachstr 12, 76229 Karlsruhe
0721/9628-0 Fax: 0721/9628-149
info@hitex.ti.ba-karlsruhe.de
http://www.ba-karlsruhe.de/BA/firmen/hitex
United Kingdom Sir William Lyons Road, Science Park
Coventry CV4 7EX
+0203 692066 Fax: +0203 692131
Huntsville Microsystems
4040 S. Memorial Parkway, PO Box 12415
Huntsville, AL 35802
IAR Systems Software
North America One Maritime Plaza, Suite 1770
San Fransisco, CA 94111 USA
(415)765-5500 Fax: (415)765-5503
Sweden IAR Systems AB
Box 23051
S-750 23 Uppsala, Sweden
+46 18 16 7800 Fax: +46 18 16 7838
Germany IAR Systems GmbH
Brucknerstrasse 27
D-81677 Munchen, Germany
+49 89 470 6022 Fax: +49 89 470 9565
United Kingdom IAR Systems Ltd
9 Spice Court
Plantation Wharf, York Rd
London SWII 3UE, England
+44 71 924 3334 Fax: +44 71 924 5341
Intel Corporation
3065 Bowers Ave., Santa Clara, CA 95051
Technical Help: (800)628-8686 (USA/Canada only)
5 am to 5 pm PST
Email: james_sampson@ccm.hf.intel.com
Faxback support: (800)628-2283 (USA/Canada)
touch tone phones only
Will only FAX to USA/Canada locations
English or Japanese support is available
BBS: (916)356-3600 24 Hr.
Auto config: 1200 thru 14.4K Baud
Intellimap Engineering
1140 Morrison Dr., Suite 222
Ottawa Ontario Canada K2H 8S9
(613)829-3196 Fax: (613)820-1773
Intermetrics Microsystems Software, Inc.
733 Concord Ave., Cambridge, MA 02138
(617)661-0072 Fax: (617)868-2843
Iota Systems, Inc.
924 Incline Way, Suite N / POB 8987
Incline Village, NV 89452-8987
(702)831-6302 Fax: (702)831-4629
J & M Microtek, Inc.
83 Seaman Rd., W Orange, NJ 07052
(201)325-1892 Fax: (201)736-4567
JMI Software Systems, Inc.
P.O. Box 481, 904 Sheble Lane, Spring House, PA 19477
(215)628-0840 Fax: (215)628-0353
KC Automation GmbH (support for Sysoft products)
Alfredo Knecht
CH-6991 Neggio, Switzerland
Fax: ++41-91591149
Email: akne@tinet.ch
Keil Elektronik GmbH
Europe Bretonischer Ring 15
D-85630 Grasbrunn b. Muenchen, Germany
089-465057 Fax: 089-468162
North America Keil Software
(800)348-8051 (sales and tech support)
CompuServe: 71715,1604
BBS: (214)713-9883
Kontron Electronics
D-8057 Eching/Munich
Oskar von Miller Str. 1, Germany
(0 81 65) 77-0
Lear Com Company
2440 Kipling St. Suite 206, Lakewood, CO 80215
(303)232-2226 Fax: (303)232-8721
Logical Systems Corporation (Disassembler, Simulator)
Micro Dialects, Inc.
POB 30014, Cincinnati, OH 45230
(513)271-9100
Logisoft Box 61929, Sunnyvale CA 94086
(408)773-8465 Fax: (408)773-8466
L.S. Electronic Systems Design
2280 Camilla Rd., Mississauga, Ontario
Canada L5A 2J8
(905)277-4893 Fax: (905)277-0047
Mandeno Granville Electronics, Ltd
128 Grange Rd., Auckland 3, New Zealand
+64 9 6300 558 Fax: +64 9 6301 720
Matra Semiconductor
2840-100 San Tomas Expressway, Santa Clara, CA 95051
(408)986-9000
MetaLink Corporation
North America 325 E. Elliot Road, Chandler, AZ 85255
(800)638-2423 (602)926-0797
Fax: (602)926-1198
Europe MetaLink Europe GmbH
Westring 2, 8011<85614>
Kirchseeon-Eglharting, Germany
(08091)2046 Fax: (08091)2386
Micro Computer Control Corporation
PO Box 275, 17 Model Ave., Hopewell, NJ 08525
(609)466-1751 Fax: (609)466-4116
BBS: (609)466-4117
Email: 73062.3336@compuserve.com
Micro Future 40944 Cascado Place, Fremont, CA 94539
(510)657-0264 Fax: (510)657-5441
BBS: (510)657-5442
MicroMint 4 Park St., Vernon, CT 06066
(203)875-2751 Fax: (203)872-2204
Microtek International, Inc.
North America Microtek International, Inc.
3300 N.W. 211th Terrace, Hillsboro, OR 97124
(503)645-7333 Fax: (503)629-8460
Europe Microtek Electronics Europe GmbH
Starnberger Strasse 22, 82131 Gauting bei Munchen
Germany
+49(89)893139-30 Fax: +49(89)893139-50
MPE: MicroProcessor Engineering Ltd.
133 Hill Lane, Shirley, Southampton SO1 5AF U.K.
+44 1703 631441 Fax: +44 1703 339691
Email: mpe@mpeltd.demon.co.uk
sales@mpeltd.demon.co.uk
70730.3576@compuserve.com
Nohau Corporation
51 E. Campbell Ave., Campbell, CA 95008
(408)866-1820
(408)378-2912 (24 hr. information center)
Fax: (408)378-7869
Offete Enterprises, Inc.
1306 South B Street, San Mateo, CA 94402
(415) 574-8250
Okapi Systems (206)258-1163
Onset Computer Corporation
199 Main St., P.O. Bos 1030
North Falmouth, MA 02556-1030
(508)563-9000 Fax: (508)563-9477
Orion Instruments, Inc.
1376 Borregas Avenue, Sunnyvale, CA 94089
(408)747-0440 Fax: (408)747-0688
Email: info@oritools.com
http://www.oritools.com
Orion Instruments
180 Independence Drive, Menlo Park, CA 94025
(800)729-7700 Fax: (415)327-9881
Parallax, Inc. 6200 Desimone Lane, #69A, Citrus Heights, CA 95621
(916)721-8217
Philips Microcontroller Product Group
811 East Arques Ave. / POB 3409
Sunnvale, CA 94088-3409
Technical documentation:
Sunnyvale, CA - (800)447-1500 Fax: (408)991-3773
Eindhoven, Netherlands - Fax: 31-40-724825
Technical questions:
Sunnyvale, CA - (408)991-3518
Production Languages Corporation
P.O. Box 109, Weatherford, TX 76086
(800)525-6289 (817)599-8365 Fax: (817)599-5098
Prologic Designs
PO Box 19026, Baltimore, MD 21204
(410)661-5950 Fax: (410)661-5950
PseudoCorp 716 Thimble Shoals Blvd., Newport News, VA 23606
(804)873-1947 Fax: (804)873-2154
BBS: (804)873-4838
Quantasm Corporation
19672 Stevens Creek Blvd.
Cupertino, CA 95014
(800)765-8086 (408)244-6826 Fax: (408)244-7268
Raven Computer Systems
PO Box 12116, St. Paul, MN 55112
(612)636-0365
Rigel Corporation
P.O. Box 90040, Gainesville, FL 32607
Scientific Engineering Labs
255 Beacon St., Suite 3D, Somerville, MA 02143
(617)625-0288
Siemens Components, Inc.
Integrated Circuit Division, 10950 N. Tantau Ave.
Cupertino, CA 95014
(800)777-4363 Fax: (708)296-4805
Signetics Corporation (see Philips Microcontroller Product Group)
Signum Systems Mountain View, CA (415)903-2220
Thousand Oaks, CA (805)371-4608
Software Science
3570 Roundbottom Rd., Cincinnati, OH 45244
(513)561-2060 Fax: (513)271-3181
Email: pbarnes@iglou.com
Sophia Systems NS Bldg. 2-4-1, Nishishinjuku, Shinuku-ku
Tokyo 160, Japan
03-348-7000
Speech Technology Inc., Software Division
837 Front Street South, Issaquah, WA 98027
(206)392-8150
Standard Microsystems Corporation
80 Arkay Dr., Hauppage, NY 11788
(516)435-6000 Fax: (516)231-6004
Sun Equipment Corporation
Lodestar Electronics Corp.
616 Hawick Rd., Raleigh, NC 27615
(800)870-1955 (919)881-2141 Fax: (919)870-5720
Suncoast Technologies
PO Box 5835, Spring Hill, FL 34606
(904)596-7599
Sysoft SA (closed as of 1989 - see KC Automation GmbH)
Systronix Inc. 555 S. 300 E., Salt Lake City, UT 84111
(801)534-1017 Fax: (801)534-1019
BBS: (801)487-2778
URDA, Inc. (800)338-0517 (412)683-8732
US Software 14215 N.W. Science Park Drive, Portland, OR 97229
(800)356-7097 (503)641-8446 Fax: (503)644-2413
Product information available by ftp -
ftp.netcom.com : pub/ussw
Universal Cross Assemblers
Canada
(506)849-8952 Fax: (506)847-0681
Vail Silicon Tools, Inc.
Box 165, Pompano Beach FL 33069
(305)491-7443 Fax: (305)974-8531
Xicor
1511 Buckeye Dr., Milpitas, CA
(408)432-8888 Fax: (408)432-0640
http//www.xicor.com (new, under construction)
BBS: (800)258-8864
Zax Corporation
2572 White Road, Irving, CA 92714
(800)421-0982 (714)474-1170
Zitek Corporation
1651 East Edinger Ave., Santa Ana, Ca 92705
(714)541-2931
5) 8051 DOCUMENTATION
5.1) Periodicals that cover the 8051
Various magazines and journals (journals seems to be THE popular name
for magazines these days) provide articles from time to time on the
8051 family of microcontrollers:
The Computer Applications Journal (Circuit Cellar Ink)
- programming and construction articles
- POB 7694, Riverton, NJ 08077-8784
- FAX: (203)872-2204
- Voice orders: (609)786-0409
- On-line orders (BBS): (203)871-1988
- Email orders: ken.davidson@circellar.com
- $21.95, $31.95 surface Canada and Mexico,
$49.95 air all other countries
Computer Design
- industry announcements and trends
- One Technology Park Drive, P.O. Box 990, Westford, MA 01886
- (508)692-0700
The Computer Journal
- programming and construction articles
- PO Box 535, Lincoln 96648
Dr. Dobbs Journal
- programming articles, concepts, and designs
- 411 Borel Ave., San Mateo, CA 94402
- (415)358-9500
Electronic Engineering Times
- industry announcements and trends
- FREE to qualified engineers and managers involved in
engineering decisions
- Fulfillment Dept., PO Box 9055, Jericho, NY 11753-8955
- FAX: (516)733-6960
Electronics Now
- construction articles
- Box 55115, Boulder, CO 80321-5115
- $19.97 one year
Elektor Electronics
- programming and construction articles
- World Wide Subscription Service Ltd
Unit 4, Gibbs Reed Farm, Pashley Road
Ticehurst TN5 7HE, England
- 27 UK pounds
or
- Old Colony Sound Lab, P.O. Box 243, Peterborough, NH 03458
- Tel. (603)924-6371, 924-6526
- Fax: (603)924-9467
- $57 USA and Canada per year
Embedded Systems Programming
- programming and systems design articles
- Miller Freeman Publications
- 500 Howard St., San Francisco, CA 94105
- (415) 397-1881
Inquisitor Magazine
- If you're the type that watched Gilligan's Island for its
socio-political insights, then you'll love a new 'zine that
just crossed my desk - Inquisitor Magazine. It's general
philosophy seems to be ... well, it seems to be ... uh, yeah!
Technical in nature, bizarre, tongue in cheek, eclectic,
electric, did I mention bizarre(?), and lots of fun. Worth
looking at if you like the out of the ordinary. The moving
force behind this magazine is Daniel Drennan, who seems to have
suffered from an overdose of radiation from his computer
monitor ;-).
- Planetarium Station, P.O.Box 132, New York, NY 10024-0132
- (212)595-8370
- Email: inquisitor@echonyc.com
- $16 per year (4 issues)
Microcomputer Journal (formerly Computer Craft)
- programming and construction articles
- 76 N. Broadway, Hicksville, NY 11801
- $29.70 one year
Midnight Engineering
- 1700 Washington Ave., Rocky Road, CO 81067
- (719)254-4553
MW Media - Product Directories
- 8051 Product Directory
(survey of various 8051 products)
- Intel Development Tools Handbook
(survey of commercial development tools for the 8051, 8096,
and 80186 lines of Intel microprocessors)
- This documents could very well be a "must" if you're into
serious development using one of these chips. If you are
"just" a hobbyist, see how the "other half" lives.
- other guides on Intel development tools, Embedded Intel 386,
Intel 486/Pentium, 8051 products, Hitachi microcontroller
development tools, AMD FusionE86, AMD 29K; low power products,
DSP, multimedia CD
- FREE to qualified developers
- MW Media
- Fairmont Plaza, 50 W. San Fernando, #675, San Jose, CA 95113
- (408)288-4721 and (408)286-4200
- FAX: (408)288-4728
Nuts & Volts Magazine
- A National Publication for the Buying and Selling of
Electronic Equipment
- 430 Princeland Court, Corona, CA 91719
- Mailed third class, USA only: $17.00 one year
$31.00 two years
- Mailed first class, one year only: $34.00-USA
$35.00-Canada/Mexico
- Foreign/Air Mail - $70.00; Foreign/Surface - $39.00
- (800)783-4624
- Email: 74262.3664@compuserve.com
5.2) Books on the 8051
5.2.1) List of books
I don't have information on all of these, only that they exist. I
would greatly appreciate it if someone could provide a short synopsis
and the complete book name if you are familiar with any of these
titles.
The 8051 Family of Microcontrollers
-Richard H. Barnett
-Prentice-Hall, 1995
-ISBN 0-02-306281-9
8051 Interfacing and Applications
- Applied Logic Engineering
- 13008 93rd Place North, Maple Grove, MN 55369
- (612)494-3704
The 8051 Microcontroller
- I. Scott MacKenzie
- Macmillan Publishing Company, 1992
- includes schematics for a single-board computer,
assembly-language source code for a monitor program, and
interfaces to a keypad, LEDs, and loudspeaker.
The 8051 Microcontroller
- James W. Stewart
- Regents/Prentice-Hall, 1993
- $27.50, 273 pages
- includes many interfacing examples (switches, solenoids,
relays, shaft encoders, displays, motors, and A/D converters)
and a chapter on top-down design method
The 8051 Microcontroller: Architecture, Programming and Applications
- Kenneth J. Ayala
- 241 pages, soft cover
- 5.25" diskette with assembler and simulator
- ISBN 0-314-77278-2, Dewey 004.165-dc20
- West Publishing Company
- P.O. Box 64526, St. Paul, MN 55164
- (800)328-9352
- see review in next section
Assembly Language Programming (for the MCS-51 family)
- F. A. Lyn
- L. S. Electronic Systems Design
Basic-52 Programmer's Guide
- Systronix, Inc. (they also sell a Basic compiler)
Beginner's Guide
- Suncoast Technologies
C and the 8051
- Thomas W. Schultz
- Prentice Hall
- ISBN 0-13-753815-4
Data book / Handbook / Users' Guide
- Advanced Micro Devices
- Dallas (User's guide for the DS5000)
- Intel
- Philips
- Siemens
Embedded Controller Forth for the 8051 Family
- Academic Press (I think)
- William H. Payne
- uses a Forth development system available on the Internet
(see above in the Forth software section)
Embedded Systems Programming in C and Assembler
- John Forrest Brown
- Van Nostrand Reinhold, 1994
- 304 pages, $49.95
- ISBN 0-442-01817-7
- covers Motorola and Intel processors
- includes diskette with code from the book
- book review in Dr. Dobb's Journal, November 1994, page 121
Experimenter's guide
- Rigel Corporation
Introduction to Microcontroller Design, Based on the 8051 family of
Processors
- Business Data Computers
- P.O. Box 1549, Chester, CA 96020
The Microcontroller Idea Book
- Jan Axelson (of Microcomputer Journal fame)
- features the 8052-BASIC microcontroller
- hands-on guide with complete plans (schematics, design theory,
program listings, construction details, etc)
- explains how to use sensors, relays, displays, clock/calendars,
keypads, wireless links, and more
- 1994, 273 pages, $31.95 + shipping
- Lakeview Research, 2209 Winnebago St., Madison, WI 53704
(608)241-5824 Internet: 71163.3555@compuserve.com
- contact the author at janaxel@aol.com
5.2.2) Book reviews
Jan Axelson's review of her book:
The Microcontroller Idea Book
This is a hands-on guide that presents designs for use in data
loggers, controllers, and other small-computer projects. It
includes complete circuit schematics and parts lists, design
theory, example program listings, construction and debugging tips,
and vendor listings. Example circuits and programs are based on
the 8052-BASIC microcontroller. The book is loosely based on a
series of articles I wrote for ComputerCraft magazine (now The
Microcomputer Journal).
Chapter titles: microcontroller basics, inside the 8052-
BASIC, powering up, saving programs, programming, inputs and
outputs, switches and keypads, displays, using sensors to
detect and measure, clocks and calendars, control circuits,
wireless links, calling assembly-language routines, running
BASIC-52 from external memory, related products
Richard H. Barnett's summary of his book:
The 8051 Family of Microcontrollers
The book covers basic micros through complete projects using the
8051 family as examples. It is designed as a "lots of meat, very
little filler" type of text, but is very well-suited for use as a
handbook of project development using 8051 family parts. The book
stresses examples, both hardware and software. The hardware
examples are real working items including 3 complete projects in
the last chapter. Software examples are presented in both C and
assembly code. All of the program listings and other software
examples were imported electronically to the text eliminating
errors.
For more info contact the author - barnettr@mace.cc.purdue.edu
Richard Kendrick's review of the book:
8051 Interfacing and Applications
from Applied Logic Engineering
IN BRIEF
An excellent collection of interfacing circuits and well commented
source code in assembly. This is not a book for beginners as it
assumes the user is very familiar with the architecture of the
8051 and its registers. A disk of assembly source code listings
is included.
CHAPTERS
1 - 8051 Interfacing and Applications
1.1 - Introduction
1.2 - Main System Core
1.3 - Simple Methods of User Input
1.4 - Interfacing a 16 digit keypad to the 8031
1.5 - Centronics Parallel Input Port
1.6 - Centronics Parallel Output Port
1.7 - Interfacing to the built-in Serial Port
1.8 - Interfacing to a Dual Channel UART
1.9 - Interfacing to an LCD
1.10 - Bank Selection of Memory
- Appendix A: List of Vendors
- Appendix B: Connection to an External Computer
0.1 RS-232 Serial Connection
0.2 Centronics Interface Cabling
COMMENTS
This spiral bound book is thin (74 pages) but manages to cover a
lot of information. All of the sub-chapters have excellent code
listings with full comments, partial schematic diagrams, and an
occasional timing diagram. The chapter on using the serial port
is based on the MAX232 chip becoming so popular. A table of timer
reload values is provided to get standard baud rates but the book
only mentions the required clock frequency of 11.0592 mHz in the
first chapter. It also doesn't explain why a seemingly
non-standard crystal frequency was chosen. The dual UART channel
features the 2681 chip. The LCD chapter gives a small but
adequate explaination of the Hitachi controller chip usage on LCD
displays and a tiny fragment of data on display characteristics of
LCDs. The bank selection of memory is useful showing code and
schematic using five 62256 chips for 160K bytes of read/write
memory.
Richard Kendrick's review of the book:
Microprocessor/Controller Design
by Wayne P. Lichti of Business Data Computers
A lame little book better bypassed. As an introductory text,
Kenneth Ayala's book is the winner hands down. This book is a
poor rehash of the same information in Intel's or AMD's data book.
There is one code listing in the book and does little more than
tell the reader that the 8051 family of processors exist.
This book is 134 pages of wasted time. The schematics were
printed on a dot matrix printer and poorly reproduced. Many of
the sections are just a table or a paragraph with two or three
sentences. Use Ayala's book, you'll learn a lot more useful
information.
John Little's review of the book:
The 8051 Microcontroller: Architecture, Programming and Applications
by Kenneth J. Ayala
IN BRIEF
A good book for those who are already moderately familiar with
assembly language programming and wish to learn more about 8051
specifics. Has many example listings, all of which are very well
documented in terms of comments and explanations in the text. NOT
a book for absolute beginners OR hardware hackers looking for
circuits and applications.
CHAPTERS
1 - Microprocessors and Microcontrollers.
2 - The 8051 Architecture.
3 - Moving Data.
4 - Logical Operations.
5 - Arithmetic Operations.
6 - Jump and Call Opcodes.
7 - An 8051 Microcontroller Design.
8 - Applications.
9 - Serial Data Communication.
A - 8051 Operational Code Mnemonics.
B - How to Use the Assembler.
C - how to Use the Simulator.
D - The 8255 Programmable I/O Port.
E - Control Registers.
COMMENTS
In his preface to the book, Mr Ayala states that that it is
intended for "... a diverse audience. It is meant for use
primarily by those who work in the area of electronic design and
assembly language programming of small, dedicated computers".
Later, he goes on to refer the reader to the manufacturer's data
books for more information on hardware issues. This sets the tone
for the whole book, which is very much software orientated.
Anyone buying the book expecting to find reams of circuit diagrams
and details on how to build their own 8051 driven, automated car
assembly plant will be disappointed. In fact, most of the circuits
and applications shown are very much conceptual, with generic,
black-box outlines for most of the components. The single
exception to this is a fairly complete system (8031, EPROM & RAM,
jumper selectable memory sizes) in the chapter on microcontroller
design. Even then, there's no I/O shown (the txd/rxd are
unconnected).
Having said that, Mr Ayala does do a fairly thorough job of
working through the peculiarities of the 8051, with detailed
coverage of memory organisation, bit/byte level operations,
timers, interrupts and, at the end of the book, a complete chapter
on 8051 communication modes. Each area has relevant assembly
language listings, along with a detailed explanation of the
workings of the code.
Each section also has highlighted "comment" passages which point
out common pitfalls and reinforce critical points. Each chapter
ends with a summary of the important points covered and a series
of ten to twenty pertinent problems for the reader to solve. For
the most part, the answers to the problems can be found in the
text. In later chapters though, the reader is asked to elaborate
on various programming themes and to write assembly language
programs of their own to perform various tasks. The problems range
from the bland "Name twenty items which have a built in
microcontroller" (Chapter 1), to the more esoteric "Compose a
40-value lookup table that will generate a sawtooth wave using a
D/A converter" (Chapter 8).
It should be noted that the book is not aimed at the complete
novice. For instance, although assembly language listings are used
throughout, it is not until Appendix B that the reader finds out
what the assembler actually does and how the listings relate to
machine code. Even then, the complete neophyte will be left with a
rather empty feeling, as there are pages and pages of code, the
schematic for a (more or less) complete system and instructions on
how to use the assembler, but no information at all on how the
object code should be utilised (other than with the included
simulator - see below). If you don't already know how to blow an
EPROM, you're in trouble.
The diskette which accompanies the book contains the PseudoSam
assembler (which is used throughout) and an 8051 simulator. Both
being intended for use on a PC (it's a measure of how fast the
computer industry is evolving that a 5.25 inch diskette seems a
little archaic just three years after the publication date of the
book). The PseudoSam assembler ran fine on my system and I was
able to assemble several of the examples from the book and
successfully run them on a small, home-brew 8031 system. I was
totally unable to get the simulator to run. However, as it failed
on several different systems I'm prepared to believe that my
particular copy of the diskette was at fault.
SUMMARY
All in all, a recommended book for those who have previous
assembly language experience and wish to get to know details
relating to the 8051 microcontroller. While the internal
architecture of the chip is covered in detail, external hardware
and peripheral interfacing is not. Only the basic 8051/31 is
covered, with little mention of the other variants available.
There are extensive listings in the text, covering routines for
handling keyboards and displays, as well as timing loops and
communications. A large, clear typeface ensures that all of the
listings are completely legible. The layout and presentation of
the book is excellent, with a consistent, unambiguous style used
throughout.
Tim McDonough's review of the book:
C and the 8051: Programming for Multitasking
by Thomas W. Schultz
Schultz's book provides a brief overview of the 8051 architecture
but is primarily a discussion of multi-tasking software in an 8051
environment. He presents quite a few code examples. The examples
and the accompanying text show comparisons of how to accomplish
things in assembler, PLM, and C. The C examples presented are
based on Version 3 of the Franklin compiler but should be easily
understandable by anyone already familiar with C.
Later chapters in the book deal with more advanced topics.
Chapters are devoted to Real-Time Ideas, Timing and Scheduling,
Communications and Synchronization, Interrupts, Priority, and
Context, and Distributed Systems. The Real-Time Ideas chapter
briefly discusses six Real Time Operating System (RTOS) kernels
offered by several vendors. Later in the book some examples are
given to simple applications with and without using a RTOS.
All in all, a useful addition to my technical library. It is one
of the few 8051 books that goes beyond the basics and would be
particularly of interest to those contemplating their first
non-trivial 8051 design.
5.3) Miscellaneous documentation on the 8051
Advanced Micro Devices
- application notes
Intel Corporation
- application notes
L.S. Electronic Systems Design
- application notes (source code on diskette and schematics)
Philips Semiconductors (Signetics)
- application notes
Software Science
- application notes
__________________________________________________________
I disclaim everything. The contents of this article might be totally
inaccurate, inappropriate, misguided, or otherwise perverse - except for
my name (hopefully I got that right).
Copyright (c) 1995 by Russell Hersch, all rights reserved.
This FAQ may be posted to any USENET newsgroup, on-line service, or BBS
as long as it is posted in its entirety and includes this copyright
statement.
This FAQ may not be distributed for financial gain.
This FAQ may not be included in commercial collections or compilations
without express permission from the author.
-----------------------------------
Russ Hersch - russ@silicom.co.il or sibit@datasrv.co.il
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