INDUSTRIAL TRAINNING REPORT

ELECTRONIC & COMMUNICATION ENGIEERING

SESSION(2013-14)

SUBMITTED TO

ER.CHANCHAL VISHWAKARMA

SEMINAR CO-ORDINATOR

ASSISTANT PROFESSOR

A.C.E.T (BAGHPAT)

SUBMITTED BY:

AYOUSH KUMAR SINGH

1130531010

EC 4th YEAR

:

EMBEDDED SYSTEMS

●An embedded system is a

computer system designed to

perform one or a few dedicated

functions often with real-time

computing constraints.

● It is embedded as part of a

complete device often

including hardware and

mechanical parts.

● A general example may be

traced as that of the personal

computer or a PC.

WHAT ARE

MICROCONTROLLERS?●A microcontroller (sometimes abbreviated µC, uC or MCU) is a small computer on a single integrated circuit containing a processor core, memory, and programmable input/output peripherals.●Microcontrollers are used in automatically controlled products and devices, such as automobile engine control systems, implantable medical devices, remote controls, office machines, appliances etc.●By reducing the size and cost compared to a design that uses a separate microprocessor, memory, and input/output devices, microcontrollers make it economical to digitally control even more devices and processes.

FIG. OF 8051

MICROCONTROLLER

● Bit as well as byte addressable RAM area of 16 bytes.● Four 8-bit ports, (short models have two 8-bit ports). ● 16-bit program counter and data pointer

● This system was referred to as a SYSTEM ON CHIP as the RAM and ROM were designed on the chip. This is an 8 bit processor as CPU can handle only 8 bit data at a time.

BLOCK DIAGRAM OF 8051

MICROCONTROLLER

ABOUT 8051

MICROCONTROLLER

The 40 pin

IC has the

following pin

diagram

MOTIVATION

●The project finds high practical and widespread

use.

●It is a very primitive application of the

microcontroller.

●Easy and convenient to be built for a beginner

as the coding comprises of basic instructions.

INTRODUCTION

o Access control system that allows only authorized persons to access a

restricted area

o Allows the user to unlock the device with a password.

o The major components include a keypad, LCD and the controller P89V51

which belongs to the 8051 series of microcontrollers.

o User can also set his password to ensure better protection.

Circuit design of electronic code lock

Components used in the device

•LCD 16*2

•Resistors 10k*12, 1k*10, 1.5k

•Crystal 11.0592Hz

•Capacitors 33pF*2, 10µF, 0.1µF*3

•IC7805

•Battery power 9V

•Switches

•LED’s

•Connecting wires

•Microcontroller P89V51

Microcontroller P89V51

•16/32/64 kB flash and 1024 B of data RAM

•A key feature of the P89V51 is its X2 mode option.

•The flash program memory supports both parallel programming and in

serial ISP

•Supports 12-clock (default) or 6-clock mode selection via software or

ISP

Features

•80C51 CPU

•5 V operating voltage from 0 MHz to 40 MHz

•16/32/64 kB of on-chip flash user code memory

•PCA (programmable counter array) with capture/compare functions

•Four 8-bit I/O ports with three high-current port 1 pins

•Three 16-bit timers/counters

oFlat panel display, electronic visual display, video display that uses

the light modulating properties of liquid crystals .

The 8051 is successfully studied along

with the 8051 microcontroller.

Conclusion and Result