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GUJARAT TECHNOLOGICAL UNIVERSITY

COURSEWARE FOR EVEN TERM SEMESTERPOWER ELECTRONICS DEPARTMENT(024)

L.E.COLLEGE, MORBI (031)

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Subject Name: Microcontrollers for Power Electronics Subject Code: 162402

Compiled by: S.H.TRIVEDI Assistant Prof. Power Electronics Deptt.L.E.College, Morbi.

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1. Introduction• Microprocessor = cpu

• Microcontroller = cpu + peripherals + memory

• Peripherals = ports + clock + timers + uarts + adc converters +lcd drivers + dac + other stuff

• Memory = eeprom + sram + eprom + flash

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Various applications of uc

• The 8051 has been in use in a wide number of devices, mainly because it is easy to integrate into a project or build a device around. The following are the main areas of focus:

• i. Energy Management:Efficient metering systems help in controlling energy usage in homes and industrial applications. These metering systems are made capable by incorporating microcontrollers.

• ii. Touch screens:A high number of microcontroller providers incorporate touch-sensing capabilities in their designs. Portable electronics such as cell phones, media players and gaming devices are examples of microcontroller-based touch screens.

• iii. Automobiles: The 8051 finds wide acceptance in providing automobile solutions. They are widely used in hybrid vehicles to manage engine variants. Additionally, functions such as cruise control and anti-brake system have been made more efficient with the use of microcontrollers.

• iv. Medical Devices:Portable medical devices such as blood pressure and glucose monitors use microcontrollers will to display data, thus providing higher reliability in providing medical results.

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How power electronics converter & microcontroller work together

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Block diagram of intel 8051

2. Basic Architecture of Mcs51 Family

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INTERNAL

RAM

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For more details on SFR http://www.electronicsteacher.com/tutorial/standard-8051-tutorial/special-function-registers.php

Special Function Registers

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3.Mcs Family Instruction SetA. Arithmetic instructions.B. Logic instructions.C. Data transfer instructions.D. Boolean variable manipulation instruction E. Program and machine control instruction.

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4.Assembly Language Programing

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5. Advanced Programming Techniques

• Floating point representation and operations• Counter and delays• Handling subroutines• Handling interrupts• Writing data to output port, reading data from

input port

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6. Programming In High Level Programming Language And Rtos

• C51 C Compiler• The Keil C51 C Compiler for the 8051 microcontroller is the most popular

8051 C compiler in the world. It provides more features than any other 8051 C compiler available today.

• The C51 Compiler allows you to write 8051 microcontroller applications in C that have the efficiency and speed of assembly language. Language extensions in the C51 Compiler give you full access to all resources of the 8051.

• C51 translates C source files into a relocatable object module. When the DEBUG control is used, the object file contains full symbolic information for debugging with the µVision3 Debugger or an in-circuit emulator. In addition to the object file, the C51 Compiler generates a listing file which optionally may include symbol table and cross-reference information.

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For programming in higher level language many software are available. One of them is ‘keil’ which is very popular in academicians.

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7. INTERFACING WITH REAL WORLD Hardware

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8. External Memory Interfacing And Serial Communication Concepts

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WEB REFERANCES• http://books.google.co.in/books?id=8t0gVhfU

GXUC&printsec=frontcover#v=onepage&q&f=false

• http://www.8051projects.info/projects.asp• http://www.keil.com/• http://www.edsim51.com/• www.thompsonrd.com/• http://www.electronicsteacher.com/tutorial/st

andard-8051-tutorial/special-function-registers.php

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Reference Books• The 8051 Microcontroller and Embedded

Systems - By Mazidi,Mazidi & McKinlay• 8051 Microcontroller – By Subrata Ghoshal• 8051 Microcontrollers – By Satish Shah• The 8051 microcontroller & Embedded

systems – By K.J.Ayala and D.V.Gadre• Digital Logic and Computer Design – By M.

Morris Mano• Embedded C – By Michael J. Pont