JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Pre-requisites

Computer Organization and Operating Systems.

Course Objectives:

• To provide broad understanding of the requirements of Real Time Operating Systems.
• To make the student understand, applications of these Real Time features using case studies.

Course Outcomes:

• To acquire knowledge on Real Time features of UNIX and LINUX.
• To understand the basic building blocks of Real Time Operating Systems in terms of scheduling, context switching and ISR.
• Elaborative understanding on Real Time applications using Real Time Linux, ucos2, VX works, Embedded Linux, etc.

UNIT - I

Introduction to UNIX/LINUX, Overview of Commands, File I/O, ( open, create, close, lseek, read, write), Process Control ( fork, vfork, exit, wait, waitpid, exec).

UNIT - II

Real Time Operating Systems: Brief History of OS, Defining RTOS, The Scheduler, Objects, Services, Characteristics of RTOS, Defining a Task, asks States and Scheduling, Task Operations, Structure, Synchronization, Communication and Concurrency. Defining Semaphores, Operations and Use, Defining Message Queue, States, Content, Storage, Operations and Use

UNIT - III

Objects, Services and I/O Pipes, Event Registers, Signals, Other Building Blocks, Component Configuration, Basic I/O Concepts, I/O Subsystem

UNIT - IV

Exceptions, Interrupts and Timers: Exceptions, Interrupts, Applications, Processing of Exceptions and Spurious Interrupts, Real Time Clocks, Programmable Timers, Timer Interrupt Service Routines (ISR), Soft Timers, Operations.

UNIT - V

Case Studies of RTOS: RT Linux, MicroC/OS-II, Vx Works, Embedded Linux, and Tiny OS.

R16 B.TECH EIE.

TEXT BOOKS:

• 1. Real Time Concepts for Embedded Systems – Qing Li, Elsevier, 2011

REFERENCE BOOKS:

• 1. Embedded Systems - Architecture, Programming and Design by Rajkamal, 2007, TMH.
• 2. Advanced UNIX Programming, Richard Stevens
• 3. Embedded Linux: Hardware, Software and Interfacing – Dr. Craig Hollabaugh R16 B.TECH EIE.