EEL-4746 EEL-4746 Microprocessor-based Microprocessor-based

System DesignSystem Design

Fall 2004 SemesterFall 2004 Semester

Dr. Michael P. FrankDr. Michael P. Frank

AnnouncementsAnnouncements

AnnouncementsAnnouncements

FSU First-Day Mandatory Attendance PolicyFSU First-Day Mandatory Attendance Policy

ECE Course Prerequisite PolicyECE Course Prerequisite Policy

ECE Academic Dishonesty PolicyECE Academic Dishonesty Policy

Today’s AgendaToday’s Agenda

Today’s AgendaToday’s Agenda

EEL-4746 Course Outline and ObjectivesEEL-4746 Course Outline and Objectives EEL-4746 Best PracticesEEL-4746 Best Practices EEL-4746 Software DistributionEEL-4746 Software Distribution Design MethodologyDesign Methodology Design AbstractionDesign Abstraction EEL-4746 Microprocessor-based System EEL-4746 Microprocessor-based System

DesignDesign Review of Digital Logic DesignReview of Digital Logic Design

Course Outline and Course Outline and ObjectivesObjectives

4746 Best Practices4746 Best Practices

Or, How do you get an A in this Or, How do you get an A in this class?class?

Definition:Definition:System Design ProcessSystem Design Process

Requirements SpecificationRequirements Specification

ConceptualizationConceptualization

AnalysisAnalysis

SynthesisSynthesis

VerificationVerification

DocumentationDocumentation

Iteration

4746: System Design Process4746: System Design ProcessRequirements SpecificationRequirements Specification Given by me: HW, Project, Exam, etc. Given by me: HW, Project, Exam, etc.

ConceptualizationConceptualization Developed by you and your groupDeveloped by you and your group

Iteration Design CycleIteration Design CycleWrite ProgramWrite ProgramCompile ProgramCompile ProgramDebug Compilation ErrorsDebug Compilation ErrorsExamine output resultsExamine output resultsDebug Logical ErrorsDebug Logical ErrorsExamine hardware resultsExamine hardware resultsDebug Hardware ErrorsDebug Hardware Errors

Iteration

4746: System Design Process4746: System Design Process

DocumentationDocumentation ““Digitally dropped” into Blackboard Site Digitally dropped” into Blackboard Site

This could take one hour or thirty hours dependingon your skills. I will help you avoid “landmines”

Homework AssignmentsHomework Assignments

Two weeks to complete an assignmentTwo weeks to complete an assignment No excuse for: network down, printer out of toner, No excuse for: network down, printer out of toner,

computer locks up, etc.computer locks up, etc.

HW assignments will “overlap”HW assignments will “overlap” Average one assignment due every 1 ½ weeks.Average one assignment due every 1 ½ weeks.

HW’s will build upon one anotherHW’s will build upon one another You may use solutions from previous HW’sYou may use solutions from previous HW’s

Homework assignments will be customizedHomework assignments will be customized Solutions will be given for a “general” problemSolutions will be given for a “general” problem

You must have You must have workingworking program for full credit program for full credit

Homework AssignmentsHomework Assignments

HW’s are “self-correcting” for the “right answer”. HW’s are “self-correcting” for the “right answer”. I’ll check for the “correct” solution.I’ll check for the “correct” solution.

HW must be HW must be onon time time Digital Drop Box (time stamped)Digital Drop Box (time stamped) Both you and your partner must digitally submitBoth you and your partner must digitally submit Only one copy of handwritten notes needed.Only one copy of handwritten notes needed.

Design ProjectsDesign Projects

Design projects DO NOT replace regular Design projects DO NOT replace regular homework assignments.homework assignments. You may have both due during the same You may have both due during the same

week.week.

Hardware MUST work for more than ½ Hardware MUST work for more than ½ creditcredit

QuizzesQuizzes

Designed to “keep you awake.”Designed to “keep you awake.”

Mostly group quizzes Mostly group quizzes

Some individual quizzes Some individual quizzes

No make-up quizzes will be givenNo make-up quizzes will be given Used to monitor attendanceUsed to monitor attendance I will drop the three lowest quiz gradesI will drop the three lowest quiz grades

Course NotesCourse Notes

All slides will be available onlineAll slides will be available online

Exam, HW, and Quiz solutions onlineExam, HW, and Quiz solutions online

EEL-4746EEL-4746Best PracticesBest Practices

Keep up with the course!!!Keep up with the course!!!Complete the Assignments!!!Complete the Assignments!!! You will be allowed to work in groups, butYou will be allowed to work in groups, but

EEL-4746EEL-4746Best PracticesBest Practices

The The onlyonly way to learn way to learn to code in Assembly to code in Assembly

Language is to Language is to codecode in in Assembly Language.Assembly Language.

In other words,In other words,practice makes practice makes

perfect.perfect.

EEL-4746Best Practices

4746 Software 4746 Software DistributionDistribution

THRSIM11THRSIM11

MS Windows based 68HC11 simulatorMS Windows based 68HC11 simulator Text EditorText Editor Cross AssemblerCross Assembler DisassemblerDisassembler Software SimulatorSoftware Simulator

Simulate HardwareSimulate Hardware Target Board DownloaderTarget Board Downloader Target Board Terminal InterfaceTarget Board Terminal Interface

THRSIM11THRSIM11

Site license for FAMU-FSU COE studentsSite license for FAMU-FSU COE students

Download program self-extracting archive Download program self-extracting archive from course webpagefrom course webpage Under “Course Library”Under “Course Library”

Request License File from ECE websiteRequest License File from ECE website Must make request from FAMU or FSU email Must make request from FAMU or FSU email

domain.domain. Cannot give license file to another student!Cannot give license file to another student!

Design MethodologyDesign Methodology

Definition: Definition: Engineering Design Engineering Design

MethodologyMethodology

A systematic approach to achieve the A systematic approach to achieve the desired goal of a solution to the problem desired goal of a solution to the problem (i.e. a working design) using proven (i.e. a working design) using proven principles or practices.principles or practices.

You must follow our 4746 design You must follow our 4746 design methodology to get full credit. methodology to get full credit.

“Right Answers”

Design MethodologyDesign Methodology

“Best Practices Solution”

Violates “Best Practices”

“Right answer” but not correct solution.

Design AbstractionDesign Abstraction

How do we “describe” a system?How do we “describe” a system?

Design AbstractionDesign Abstraction

Example: Design a “system” which will complement input A

AF(x)

where A and Y are single bit values

AA YY

00 11

11 00

We can “describe” this design using a logical Truth Table

Y = A

Levels of Design AbstractionLevels of Design Abstraction

Our goal in ECE is physical or hardware implementationsof the design.

In ECE, we “design” at several levels of “abstraction”

Design

Specs

a11

a22

3a3

4a4

b1

b2

b3

b4

5

6

7

8

Vcc1

0

GND

0

Hard-ware

DesignProcess

Levels of Design AbstractionLevels of Design Abstraction

System Level: EEL-4746 (M68HC11)

A ASMCode

M68HC11 Assembly Language:

COMA ; Complement A STAA Y ; Store Accumulator A at Y

Example: Design a “system” which will complement input A

Y = A

Levels of Design AbstractionLevels of Design Abstraction

Behavioral Level: EEL-4712

ANot A

VHDL code:

Y <= not A;

Example: Design a “system” which will complement input A

Y = A

Levels of Design AbstractionLevels of Design Abstraction

Gate Level: EEL-3705 Digital Logic Design

A

InverterSymbol

Example: Design a “system” which will complement input A

Y = A

Levels of Design AbstractionLevels of Design Abstraction

Circuit Level: EEL-3300 Electronics I

A

CMOS Technology

Example: Design a “system” which will complement input A

Vdd PFET

NFET

Y = A

Levels of Design AbstractionLevels of Design Abstraction

Digital IC Design: EEL-4313 Digital IC Design

A

CMOS Technology

Example: Design a “system” which will complement input A

VDD GND

Y = A

Levels of Design AbstractionLevels of Design Abstraction

Fabrication Level: EEL-4330 Microelectronics Eng

NWELL

N+ N+P+P+

PSUB

Summary of LevelsSummary of Levels

““System”System”: : Assembly LanguageAssembly Language

BehavioralBehavioral: : VHDLVHDL

LogicalLogical: : GatesGates

Electronic CircuitElectronic Circuit: : TransistorsTransistors

Integrated CircuitIntegrated Circuit: : IC LayoutIC Layout

FabricationFabrication: : IC ProcessingIC Processing

SummarySummary

All “levels” give you the All “levels” give you the samesame result. result.

We will learn how to use the “system” We will learn how to use the “system” level to its highest degree of level to its highest degree of effectiveness.effectiveness.

EEL-4746 EEL-4746 Microprocessor-based System Microprocessor-based System

DesignDesign

Begin Actual Course MaterialBegin Actual Course Material

Basic Computer SystemBasic Computer System

CPUMemoryI/O

Interface

BUS

CPU: Central Processor UnitI/O: Input/OutputMemory: Program and DataBus: Address signals, Control signals, and Data signals

To I/O

Microprocessor-Based SystemMicroprocessor-Based System

CPUMemoryI/O

Interface

BUS

Microprocessor e.g. Pentium 4

To I/O

CPU: Central Processor UnitI/O: Input/OutputMemory: Program and DataBus: Address signals, Control signals, and Data signals

Microcontroller-Based SystemMicrocontroller-Based System

CPUMemoryI/O

Interface

BUS

Microcontroller e.g. M68HC11

To I/O

CPU: Central Processor UnitI/O: Input/OutputMemory: Program and DataBus: Address signals, Control signals, and Data signals

(Although a microcontroller may access external memory as well.)

EEL-4746EEL-4746M68HC11 Micro-controller Design

M68HC11INPUTDevices

OutputDevices

AssemblyLanguage

Code

We will learn to writeM68HC11 Assembly LanguageCode