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© 2010 Kettering University, All rights reserved.

© 2010 Kettering University, All rights reserved. Microcomputers I – CE 320. Jaerock Kwon, Ph.D. Electrical and Computer Engineering Kettering University jkwon@kettering.edu http://www.kettering.edu/~jkwon. Dragon 12-Plus Development Board D-Bug12 MiniIDE. Today’s Topics.

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© 2010 Kettering University, All rights reserved.

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  1. © 2010 Kettering University, All rights reserved.

  2. Microcomputers I – CE 320 Jaerock Kwon, Ph.D. Electrical and Computer Engineering Kettering University jkwon@kettering.edu http://www.kettering.edu/~jkwon

  3. Dragon 12-Plus Development BoardD-Bug12MiniIDE

  4. Today’s Topics • Introduction of Labs • Dragon12-Plus Development Board • DBUG12 commands • MiniIDE

  5. Introduction of Labs • See the syllabus

  6. Dragon12-Plus Development Board • HCS12/9S12 based development board. • Manual can be found at • http://www.evbplus.com/download_hcs12/dragon12_plus_hcs12_manual.pdf

  7. Layout of Lab Settings Serial Communication • Users can communicate with the Dragon 12 plus through the serial communication ports • Small monitor program on the Dragon 12 plus (D-Bug12) • Users can type commands, download programs, and get/display output from the Dragon 12 plus.

  8. Memory Map

  9. Hardware Descriptions • LEDs • DIP switch and pushbuttons* • 7-segment LED * • Keypad • LCD display • Dual RS232 communication ports • DB9 female connectors

  10. D-Bug12 A Debug Monitor for the MC68HC912B32 Microcontroller • Basically D-Bug12 is a software program that interprets commands that a user types in. • You can interact with the microcontroller through D-Bug12 command. • Download your program • See/manipulate contents of memory and registers

  11. D-Bug12 Command Set Frequently used ones • BF - Block Fill user memory with data. • BR - Set/Display user breakpoints. • G - Go. Begin execution of user program. • LOAD - Load user program in S-Record format. • MD - Memory Display. Display memory contents in hex bytes/ASCII format. • MM - Memory Modify. Interactively examine/change memory contents. • NOBR - Remove one/all user breakpoints. • RD - Register Display. Display the CPU register contents. • RM - Register Modify. Interactively examine/change CPU register contents. • T - Trace. Execute an instruction, disassemble it, and display the CPU registers. • <RegisterName> <RegisterValue> - Set CPU <RegisterName> to <RegisterValue>

  12. MiniIDE • In order to communicate with the Dragon 12 Plus, we need to have/use • Terminal program to send typed inputs to the board and see the output from it. • Assembler to assemble the assembly program. • Text editor to edit assembly program • The IDE is a integrated tool for all of above. • Integrated Development Environment (IDE) • Source code editor, assembler, and etc. • MiniIDE is an IDE for HCS12 assembly programming • You can download the software at http://www.mgtek.com/miniide/

  13. MiniIDE Source code editor Output of assembler Terminal window

  14. Demo

  15. Questions?

  16. Wrap-up What we’ve learned • Dragon12-Plus Development Board • DBUG12 commands • MiniIDE

  17. What to Come • Lab sessions start next Tuesday at AB-2817

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