now ship the Fox11 trainer without the EEPROM, 28C256,
installed. The EEPROM, 28C256, in DIP package has been discontinued by
IC manufacturers. There is no replacement available.
The Fox11 68HC11 trainer is
specially designed for students in the classroom environment.
Many colleges require students to buy their own trainers, so
students can work off-campus and school is not responsible for
maintenance of the trainers. In addition, this reduces lab manager's
workload. It's a great idea, but the only problem is the cost because
students first have to buy textbooks before buying trainers. Our
EVBplus2 board is well received by many universities around the world
as a piece of lab equipment,
The FOX11 board combines and caters to many professors' ideas and
suggestions, so it easily meets or exceeds the requirements of their
courses and lab assignments. We have chosen one board approach instead
of a modular approach for reliability and low cost. Although modular
approach has its own merits, it is more suitable for extracurricular
activities by more experienced users who have more trouble-shooting
ability, such as a robot controller application.
When a board has more mechanic connections, then it will have less
reliability. For a student, as a beginner, the course itself is already
too hard to finish in a short semester, so why should he or she be
responsible for trouble-shooting any unnecessary problems caused by
more mechanical connections? Also, if you add all modules together to
duplicate the functions that the FOX11 board offers, it will be way
over your budget. Our trainer is not only a one-piece approach, but
also is a perfectly sized board for a trainer. You need a small board,
which does not occupy too much space on the bench. At the same time, it
cannot be too small and without much weight. For example, if you move
the RS232 cable a little bit accidentally, your whole project could
move chaotically, even flipping everything over if the board is very
small. You are quite lucky if you don't burn anything.
goal of the FOX11 trainer is to cover 5 most important hardware elements in the
68HC11 for educational purpose and also keep it affordable.
The 5 components namely SCI, SPI, Timer, ADC and external memory interface that
are very important subjects for students to learn are all covered by our FOX11
On our FOX11 board, it has:
Two RS232 ports with independent baud rates, one is for development work, the
other one is for user SCI application.
Image how hard to debug your code if your application uses the SCI of 68HC11?
What if your application needs a higher baud rate? Itís impossible to do it with
only one RS232 port.
2. A SPI header for communicating your external SPI device,
such as LED, LCD, relay and I/O expansion boards.
3. Eight LED indicators can be used for monitoring pulses that
are generated by timers. An on-board speaker can produce music or other
waveforms via timer system
4. A potentiometer can be used to adjust input voltage of an
Analog to Digital Converter channel.
5. A 40 pin female socket provides all address, data and
control signals for connecting external memory or I/O devices to learn 68HC11
memory interface in expanded mode.
This is a very important fundamental subject where the 68HC11 shines
comparing to other microcontrollers.
A female socket is easier than a male header for student connect signals
to an external memory or I/O chip on the breadboard via jumper wires.
The FOX11 board comes with 2 built-in monitors for different
teaching methods. They
are pre-installed in an on-chip EPROM. The
BUFFALO monitor is the default monitor, meaning the
board will start up with BUFFALO monitor. In BUFFALO monitor mode, a
professor does not have to change his teaching materials and lab
assignments. It works just like a regular Motorola EVB/EVBU board but
with a lot more on-board peripherals. In Wytec Monitor mode, it will
allow symbolic debugging, data watch, and many unique features that
will surprise you.
- 68HC11E1 with on-board 32K RAM
- Includes 6 foot DB9 RS232 cable for connecting to PC serial port
- Includes AC adapter to power the board (US and Canadian orders)
- Installed with BUFFALO 3.4 monitor. This allows professors to
avoid changing teaching material if using the board in BUFFALO monitor
mode, since all programs for EVB/EVBU/EVBU2 boards can run with
identical memory maps
- Auto-start user application program from on-board EEPROM via a jumper change
- Two RS232 ports with independent baud rates. PC communication uses
external UART and 68HC11's SCI is dedicated to user's application
program, including wireless communication
- PORT B and PORT C replacement
- Eight LEDs connected to port B
- An 8 position DIP switch connected to port C
- A 16 pin connector for a LCD display module of any size
- A 4 X 4 keypad
- A 10-pin SPI port
- A 26-pin header for connecting the 68HC11's port A, D and E to
user's external circuits
- 40 pin Motorola EVM compatible bus signal female socket connector
provides data, address and control signals for external device interface
- 60 pin EVB/EVBU/EVBU2 compatible female socket connector provides
68HC11 ports A,B,C,D and E for fast prototyping with on-board
- Two push button switches connected to PC0 and PC1, a third is
connected to PA0
- On-board speaker for music applications
- On-board potentiometer trimmer pot for analog input
- Two robot servo outputs
- Logic probe with LED indicator
- Large ground test point
- Large solderless breadboard
- Students can add application circuits without buying add-on
boards. Underneath the solderless breadboard, footprints are provided
- DS1302 real time clock
- DS1602 temperature controller
- L293D motor controller
- DPDT form C relay output
- RS485 communication port with 2 RJ12 jacks for daisy chain
- RF transceiver
- 60-pin user programmable header
- Package also includes useful software:
- Fully debugged 68HC11 program examples including source code
- 68HC11 test program that simultaneously scans keypad, plays a
song, makes a LED chaser from PB0-PB7 LEDs, changes LED brightness by
adjusting trimmer pot
- Eric Engler's Windows IDE software with the Motorola free
- PC board size: 7" x 5.9" (178mm x 150mm)
The price includes 32K RAM, 32K EPROM, a large solderless breadboard, a 6 foot RS232 cable
and a 110V AC adapter ( US, Mexico and Canada orders only)
The 4x4 keypad is connected to the header on the
left edge of the PCB.