lecture4-6pg - Reading Assignment EEL 4744C Microprocessor...

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EEL 4744C: Microprocessor Applications
Lecture 4
S/W Design and 68HC12
Programming
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• Software and Hardware Engineering: Chapter 3,
8, 9 (New version)
Or
• Microcontrollers and Microcomputers: Chapter
6
&
• Software and Hardware Engineering: Chapter 6
(Old version)
Reading Assignment
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• Means designing the software before writing the
program code
• The general approach is to learn the instruction
set and the syntax first, without too much
design
• As you become familiar with the processor,
work on designing the solution, rather than just
coding the solution
• Designing the software is more than just writing
the software!
Software Design
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Use Flowcharts to Plan Program Structure
Flow Chart Symbols
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IF-THEN Flow Structure
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Example: IF-THEN
Assembly Code
Pseudocode

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IF-THEN-ELSE Flow Structure
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Example: IF-THEN-ELSE
Assembly Code
Pseudocode
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Example: IF-THEN-ELSE Decision
; Get Temperature
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