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This product has been discontinued.  The web page posted here is for reference only.

68HC11: EVBplus Development Board
EVBplus MC68HC11 EVB

Example applications:

Why be limited by simple-minded, primitive microcontrollers when you can have the powerful, high performance 68HC11 microcontroller used in applications from automobile engine controls to robotics?

The EVBplus 68HC11 board, Ep11E9, is a very cost-effective solution that offers the combination of low cost with a full-function, full-speed, 68HC11 hardware development platform. EVBplus 68HC11 board comes to you from Wytec, a long-established provider of in-circuit emulators to industry.

Designed with an emphasis on easy-of-use, the EVBplus board combines a complete microcontroller development system for the 68HC11A1, 68HC11A8, 68HC811E2, 68HC11E1, 711E9 and 711E20, an advanced 68HC11 trainer, a reliable 68HC711E9 programmer and a versatile 68HC11 single board computer into one single package. It offers all the useful features of the Motorola's BUFFALO monitor with numerous enhancements that provide all the functions expected from a high priced 68HC11 in-circuit emulator.

For Engineers, it's a WICE 68HC11 in-circuit emulator development system, a convenient 68HC11 prototype platform, a 68HC11 production line tester, a 68HC711E9 programmer and a 68HC11 single board computer.

For Students, it's a user-friendly 68HC11 microcontroller trainer with many fully debugged, ready-to-run program examples. Use it to build a solid foundation of 68HC11 microcontroller expertise. Use it to create a real world 68HC11 application for your senior project!

EVBplus features:

We support Motorola University Program. If you are a Professor or a Lab Manager, in the USA and Canada, is teaching a 68HC11 course, please email us a request. We will be more than happy to supply you a demo board for a 60 day free trial without any obligations.

From Wytec, the creator of the low cost and high performance WICE 68HC11 emulator since 1987

Visit for ordering information or email Wytec at

Please read the following article if you are planning to purchase a 68HC11 development board in the near future:

What is the main difference between our 68HC11 EVBplus development board and the other 68HC11 EVB/EVBU development boards?

The answer is very simple, WICE Debugger Software.

Although our EVBplus board includes many hardware I/O improvements over BUFFALO based EVB/EVBU boards, but our user-friendly debugger software, which is ported from the WICE emulator from Wytec, makes a big difference.

Five or six years ago, when Motorola discontinued the production of EVB and EVBU boards, many companies designed their replacement boards based on the BUFFALO monitor firmware. The hardware of those boards are not bad, but the software is merely a terminal program, such as PCbug11 or HyperTerminal. A terminal emulation software that does not support symbolic debugging and data watch. It not only lacks debugging performance at times, but it can also be hard to use.

Our EVBplus 68HC11 development board, Ep11E9, powered by the proven WICE debugger, offers many unique features that could not be achieved by a simple terminal emulation program. With our Windows IDE software, your 68HC11 code development could not be any easier. Simply click the CONFIG button to specify your working directory and file name, click the EDIT button to edit your program, click the MAKE button to assemble/compile the code and generates an s19 file and a symbol file, click the DEBUG button to automatically download your s19 file, symbol file and parameter file, then start to debug. To write a simple assembly program, you even don’t have to leave the debugger, but just use our interactive on-line assembler to enter your code. As soon as your mnemonic code is entered, the debugger will automatically disassemble 16 lines of your program code for you, so you will see exactly how your new program looks.

When your program is hung before encountering a breakpoint address, our 68HC11 board allows you to stop it by pressing the ESC key. You do not have to reset the board, you will not lose all vital debug information and you do not have to replace all SWI instructions at breakpoint addresses with the original instructions.

In addition to all the features that come with the board, we have also implemented the jumper freeTM mode switching (ms11TM) on this 68HC11 board and the phantom monitorTM technology to preserve all interrupt vectors including the RESET vector. The jumper freeTM mode switching is a useful feature. A board will have the same performance regardless of how many jumpers it uses, but the problem with too many jumpers is to remember all jumper settings if you happen to lose your manual.

Jumper-freeTM mode switching

The jumper-freeTM mode-switching feature allows you to change the 68HC11 operating mode at a press of a button. After the initial power up, the board operates in the expanded mode. To switch to a different mode, you just press the mode select button to the desired mode, and then press the RESET button momentarily. The six operating modes are described as follows:
  1. Expanded mode is the default mode, all LEDs are off.
  2. Test mode is for programming the CONFIG register ($103F).
  3. Bootstrap mode is for programming on-chip EPROM and running special programs.
  4. Single chip mode is for running program from on-chip EPROM (68HC711E9, E20) or EEPROM (68HC811E2), or debug with a BUFFALO monitor.
  5. FFFE mode is for running program from the RESET vector that is stored at $FFFE &$FFFF. In this mode, the user can run his program without a PC. At first, the user downloads a fully debugged program, and then sets the mode select switch to the FFFE mode while pressing and holding the reset button. The program will start to run from the address that is stored at $FFFE & $FFFF as soon as the RESET button is released. At that time, the DB9 RS-232C cable can be disconnected
  6. B600 mode is for running a program from the 512 bytes of EEPROM of the 68HC11E1 starting at $B600
Phantom monitorTM

The phantom monitorTM technology preserves all interrupt vectors including RESET. The BUFFALO monitor and other similar monitors, however, occupy the locations of $E000-$FFFF and relocate the user’s reset vector, our monitor firmware does not interfere with the user’s reset vector or any other interrupt vectors. Assuming your code size is 8K, in the real word, you have to place an ORG $E000 statement in the beginning of your program, so your code will be assembled or compiled into $E000-$FFFF, but this is not possible with other development boards, because the BUFFALO monitor resides at $E000-$FFFF. You have to assemble/compile your code in a different memory block, for example, at $C000-$DFFF by placing an ORG $C000 statement in the beginning of your program. After debugging code, you have to relocate your code back to $E000-$FFFF by changing the ORG $C000 back to ORG $E000, and re-assemble/compile the source code to generate a correct s19 file before programming the final 711E9's on-chip EPROM or 811E2's on-chip EEPROM. Unfortunately, all this has to be done for all interrupt vectors, not just the RESET. It is an error-prone process and an unnecessary burden on the users, like you.

In order for students to verify their program results, we added a math function to perform arithmetic or logical operation for binary, decimal, octal and hex numbers. Students generally like this feature.

Our easy-to-manufacture design allows us to offer you this product for a surprisingly low price. At only $99.00, it’s a great value. You not only receive a well-assembled board, but also a software package that will make your 68HC11 learning experience and code development much easier.