The EVBplus2 board is very similar to the original Motorola EVB board in terms of the PCB component layout, thus allowing a smooth transition for upgrading the old EVB board. All users’ EVB/EVBU/EVBU2 add-on boards can also be used without any modifications. A small solderless breadboard allows quick prototyping of user’s additional circuits.

The kit includes the EVBplus2 board, a solderless breadboard, a 16x2 LCD display and an RS232 DB9 cable.

For customers in US and Canada, you will also receive a free switching power AC adapter.

All 68HC11 I/O lines (PA0-PA7, PB0-PB7, PC0-PC7, PD0-PD5, PE0-PE7) on the EVBplus2 board are available to user programs. Port B and port C are emulated by 68HC24 PRU. We also added a 65C22 VIA to offer 16 more bi-direction I/O lines (port F and G) for user applications.

Example applications:

• EVM, EVS replacement
• 68HC11 Trainer for students
• 68HC11 prototype platform for engineers
• Single Chip Real Time Emulation for the 68HC711E9, E20
• 68HC11 SBC, Single Board Computer

Note: The EVM and EVS have been discontinued by Freescale.

EVBplus2 features:

• Includes DB9 RS232 cable for connecting to PC serial port
• Includes AC adapter to power the board (US and Canadian orders)
• On-board 16X2 LCD display module with LED backlight and it can be replaced by any size of LCD display module via a 16 pin cable assembly
• On-board 4 digit seven segment display module
• Dual RS232 ports, user can use 68HC11’s SCI for his application program
• Eight LEDs connected to port B
• An 8 position DIP switch connected to port C
• Two push button switches connected to PC0 and PC1, a third is connected to PA0
• On-board IR transceiver with built-in crystal frequency based 38KHz digital oscillator
• RS485 communication port with 2 RJ12 jacks for daisy chain
• On-board speaker for music applications
• On-board potentiometer trimmer pot for analog input
• Capable of 68HC24 port replacement unit for port B and C in real time single chip emulation
• Additional 16 I/O lines provided by a 65C22 VIA for port F and G besides 68HC11’s ports A,B,C,D and E
• 30K on-board RAM from $8800 to $FFFF for user code
• All on-chip RAM $00-$1FF, and 512 bytes of EEPROM available for user program
• All I/O pins of the 68HC11 available to user program, including PE0 and PA3
• 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

• Wytec debugging features
• Built-in LCD driver software in firmware
• 38.4K baud for fast file download, 4 time faster than a BUFFALO monitor based board
• Single-stepping
• Eight breakpoints
• Data watch for memory and registers
• User-friendly and interactive 68HC11 online assembler
• Display 68HC11 internal registers and control bit assignment map using standard Motorola labels
• Symbolic debugging compatibility with most assemblers and compilers, including Motorola 68HC11 assembler freeware
• Exit a user program with <Esc> key - even if the program is hung
• Phantom Monitor technology preserves all user interrupt vectors, including RESET - an EVBplus exclusive
• 4 X 4 keypad header
• Robot servo outputs
• Logic probe with LED indicator
• 8-sensor port for digital switches and analog sensors for robot and home automation applications
• Fast SPI expansion port scans 10,000 I/O devices per second
• 40 pin Motorola EVM compatible bus signal connector for logic analyzer
• 60 pin EVB/EVBU/EVBU2 compatible male header and female socket connector for user I/O boards and fast prototyping with the on-board solderless breadboard
• Ability to run all sample programs in the following books:
• "Etcheverry’s Introduction to the 68HC11 Lab Manual" by Fred Etcheverry
• "The 68HC11 Microcontroller" by Professor Joseph D. Greenfield
• "MC68HC11 An Introduction Software and Hardware Interface" by Professor Han-Way Huang
• "Microcomputer Engineering" by Professor Gene H. Miller
• "Using the M68HC11 microcontroller: A guide to interface and programming" by Professor John C. Skroder
• "Microcontroller Technology: The 68HC11" by Professor Peter Spasov
• Package also includes useful software:
• Fully debugged 68HC11 program examples including source code
• Example program that simultaneously scans keypad, plays a song, multiplexes seven segment display, changes display brightness by adjusting trimmer pot and detects object by using IR transceiver as a proximity sensor
• Eric Engler’s Windows IDE software
• Includes Solderless breadboard
• PC board size: 7.05" X 5.7"

All on-board I/O devices can be disabled if the board is used as an In-Circuit Emulator for user’s target board. The emulator cable assembly will be available soon.

Note: the 5V to 12V DC converter is not installed, but an 8-pin DIP socket is provided for the converter.