DRAGON 12 MICROCONTROLLER

**Dragon12 Special-Purpose System **Summary Design and construct (if necessary) a special-purpose hardware/software system based on the Dragon12 microcomputer board. Project Specifications The project specs should contain the following, in this order: * Title page * Table of contents * Project Goals * Overview of functions and features * Detailed operation manual for the user * Mechanical system drawings of anything that will be built beyond the basic Dragon12 board Final Report The final report should contain the following, in this order: * Title page * Table of contents * Project Specifications(revised) * Description of system hardware/software operation. Describe any extra hardware. Describe multi-tasking, timer, and other major subsystem operations. * Mechanical system drawings of anything that was built beyond the basic Dragon12 board * Properly commented C source code and/or HCS12 assembly code listing, following all our documentation standards * Evaluation, Results, and Conclusions ## Deliverables Requirements and Constraints * General Rules * Each student works alone. * Grade = Degree of project functionality + quality of documentation. * 5 points per day latewill be deducted. * Submit printed copy of Project Specs and Final Report. <!-- --> * It may be written in C or assembly code. Use logical, organized program structure, including subroutines. Use comments. * It may use all available library code. * It must work correctly and reliably. * It must run in EVB mode with D-Bug12 monitor, thus must fit in 11KB ram plus 3KB of EEPROM for code and constant data. Nothing special is required to assemble and load your assembly language code/data into EEPROM, other than using ORG to set the start address in the EEPROM range (0400 - 0FFF). I have not yet determined if the EEPROM can be used with the C compiler. * Required Tasks * Each student must propose and develop a unique project that will utilize all of the I/O devices on the Dragon12 board. * You must use the I/O devices for a useful, integrated purpose. These include specifically: keypad, DIP switches, pushbuttons, analog potentiometer, 7-segment digits, LCD, infrared transceiver (source and sensor), audio speaker, and serial port to PC (for program download, execution, and text/numeric entry/display). * It should be creative and interesting. It may be fun or serious in nature. * It must be more interesting and more complex than the textbook examples and homework. * You must also use the HCS12 internal timer subsystem. * You must use mostly interrupt-driven I/O to allow multi-tasking and the multi-tasking must be obvious to the user. * The program should run continuously. * It must be user friendly in every way. * Detect and report all possible error conditions and recover from them gracefully. * Evaluate your system in terms of accuracy, speed, and limitations. Explain all the sources of error. ## Platform windows