JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

Programming Embedded Systems in C: Introduction ,What is an embedded system, Which processor should you use, Which programming language should you use, Which operating system should you use, How do you develop embedded software, Conclusions. Introducing the 8051 Microcontroller Family: Introduction, What’s in a name, The external interface of the Standard 8051, Reset requirements ,Clock frequency and performance, Memory issues, I/O pins, Timers, Interrupts, Serial interface, Power consumption ,Conclusions.

UNIT - II

Reading Switches: Introduction, Basic techniques for reading from port pins, Example: Reading and writing bytes, Example: Reading and writing bits (simple version), Example: Reading and writing bits (generic version), The need for pull-up resistors, Dealing with switch bounce, Example: Reading switch inputs (basic code), Example: Counting goats, Conclusions.

UNIT - III

Adding Structure to the Code: Introduction, Object-oriented programming with C, The Project Header (MAIN.H), The Port Header (PORT.H), Example: Restructuring the ‘Hello Embedded World’ example, Example: Restructuring the goat-counting example, Further examples, Conclusions.

UNIT - IV

Meeting Real-Time Constraints: Introduction, Creating ‘hardware delays’ using Timer 0 and Timer 1, Example: Generating a precise 50 ms delay, Example: Creating a portable hardware delay, Why not use Timer 2?, The need for ‘timeout’ mechanisms, Creating loop timeouts, Example: Testing loop timeouts, Example: A more reliable switch interface, Creating hardware timeouts, Example: Testing a hardware timeout, Conclusions.

UNIT - V

Case Study: Intruder Alarm System: Introduction, The software architecture, Key software components used in this example, running the program, the software, Conclusions.

TEXT BOOKS:

• 1. Michael J. Pont, “Embedded C”, 2nd Edition, Pearson Education, 2008

REFERENCE BOOKS:

• 1. Nigel Gardner, “PIC micro MCU C-An introduction to programming”, The Microchip PIC in CCS C -