February 14, 2010

EMBEDDED SYSTEMS


ANNA UNIVERSITY TIRUCHIRAPPALLI
Tiruchirappalli - 620 024 Regulations 2007 Syllabus B.E. COMPUTER SCIENCE AND ENGINEERING
SEMESTER VIII (Common to CSE 8th Semester and IT 7th Semester)
EMBEDDED SYSTEMS

UNIT I EMBEDDED SYSTEMS BASICS 9
Definition and classification − Overview of processors and hardware units in an embedded system −
Software embedded into the system − Exemplary embedded systems − Embedded Systems on a Chip
(SOC) − Use of VLSI designed circuits.

UNIT II DEVICES AND BUSES FOR DEVICES NETWORK 9
I/O devices − Device I/O types and examples − Synchronous − Iso-synchronous and asynchronous
communications from serial devices − Examples of internal serial-communication devices − UART
and HDLC − Parallel port devices − Sophisticated interfacing features in devices/ports − Timer and
counting devices − 12C- USB − CAN and advanced I/O serial high speed buses − ISA − PCI − PCIX −
CPCI and advanced buses.

UNIT III PROGRAMMING CONCEPTS AND EMBEDDED
PROGRAMMING IN C and C++ 9
Programming in Assembly Language (ALP) Vs High Level Language − C program elements − Macros
and functions − Use of pointers − NULL pointers − Use of function calls − Multiple function calls in a
cyclic order in the main function pointers − Function queues and interrupt service routines − Queues −
Pointers − Concepts of embedded programming in C++ − Objected oriented programming − Embedded
programming in C++ − C program compilers − Cross compiler − Optimization of memory codes.

UNIT IV REAL TIME OPERATING SYSTEMS −PART I 9
Definitions of process − Tasks and threads − Clear cut distinction between functions − ISRS and tasks
by their characteristics − Operating system services − Goals – Structures − Kernel − Process
management − Memory management − Device management − File system organization and
implementation − I/O subsystems − Interrupt routines handling in RTOS − Real time operating systems
− RTOS task scheduling models − Handling of task scheduling and latency and deadlines as
performance metrics − Co-operative round robin scheduling − Cyclic scheduling with time slicing
(Rate monotonic co-operative scheduling) − Preemptive scheduling model strategy by a scheduler −
Critical section service by a preemptive scheduler − Fixed (static) real time scheduling of tasks − Inter
process communication and synchronisation − Shared data problem − Use of Semaphore(S) − Priority
inversion problem and deadlock situations − Inter process communications using signals − Semaphore
flag or mutex as resource key − Message queues − Mailboxes − Pipes − Virtual (logical) sockets −
Remote Procedure Calls (RPCS).

UNIT V REAL TIME OPERATING SYSTEMS −PART II 9
Study of micro C/OSII or Vx works or any other popular RTOS − RTOS system level functions − Task
service functions − Time delay functions − Memory allocation related functions − Semaphore related
functions − Mailbox related functions − Queue related functions − Case studies of programming with
RTOS − Understanding case definition − Multiple tasks and their functions − Creating a list of tasks −
Functions and IPCs − Exemplary coding steps.

Total: 45



TEXT BOOKS
1. Wayne Wolf, “Computers as Components − Principles of Embedded Computing System
Design”, Harcourt India, Morgan Kaufman Publishers, 2001.
2. Rajkamal, “Embedded Systems Architecture - Programming and Design”, TMH 1st reprint, Oct
2003.

REFERENCES
1. Steve Heath, “Embedded Systems Design”, 2nd Edition, 2003.
2. David E. Simon, “An Embedded Software Primer”, 1st Indian Reprint, Pearson Education Asia,
2000.
3. Frank Vahid and Tony Givargis, “Embedded Systems Design − A Unified Hardware / Software
Introduction”, John Wiley, 2002.


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