Microcontroller Based Projects
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The document provides an overview of embedded systems, defining them as microprocessor-based subsystems used in various applications like automotive, medical, and military sectors. It discusses essential components such as microprocessors, sensors, and memory, as well as design considerations including response time and cost. Additionally, it describes the characteristics and classifications of embedded systems and highlights the 89c2051 microcontroller's features.
![“ The New York Times has
estimated that the average Most of the
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[Personal communication]
TECNOCRATS INFOETECH @ 11
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Microcontroller Based Projects
- 1. Theory and Design TECNOCRATS INFOETECH @ 9540854414 1
- 2. What is an Embedded System An Embedded System is a microprocessor based system that is embedded as a subsystem, in a larger system (which may or may not be a computer system). I O Tecnocrats Infotech www.tecnocrats.com TECNOCRATS INFOETECH @ 9540854414 9540854414 2
- 3. Application areas Automotive electronics Aircraft electronics Trains Telecommunication TECNOCRATS INFOETECH @ 9540854414 3
- 4. Application areas • Medical systems • Military applications • Authentication TECNOCRATS INFOETECH @ 9540854414 4
- 5. Essential Components Microprocessor Sensors Converters (A-D and D-A) Actuators Memory (On-chip and Off chip) Communication path with the interacting environment TECNOCRATS INFOETECH @ 9540854414 5
- 6. A- D- Actuator Sensor Processor D A Memory TECNOCRATS INFOETECH @ 9540854414 6
- 7. Essential Considerations Response Time -- Real Time Systems Area Cost Portability Low Power (Battery Life) Fault Tolerance TECNOCRATS INFOETECH @ 9540854414 7
- 8. Design Issues (Hardware-Software Co-design) System Specification Functions, Real Time Constraints, Cost and Power Constraints Hardware Software Partitioning Hardware Synthesis Simulation Implementation TECNOCRATS INFOETECH @ 9540854414 8
- 9. General Characteristics of Embedded Systems Perform a single task Usually not general purpose Increasingly high performance and real time constrained Power, cost and reliability are important considerations HW-SW systems Software is used for more features and flexibility Hardware (processors, ASICs, memory etc. are used for performance and security TECNOCRATS INFOETECH @ 9540854414 9
- 10. Classification of Embedded Systems Distributed and Non distributed Reactive and Transformational Control dominated and Data dominated TECNOCRATS INFOETECH @ 9540854414 10
- 11. “ The New York Times has estimated that the average Most of the American comes into contact functionality with about 60 micro- of embedded processors every day....” systems will be implemented in software! Latest top-level BMWs contain over 100 micro- processors [Personal communication] TECNOCRATS INFOETECH @ 11 9540854414
- 12. MICROCONTROLLER ( 89C2051) The AT 89C2051 is a low voltage, high performance CMOS 8-bit microcontroller with 2K bytes of flash programmable memory. TECNOCRATS INFOETECH @ 9540854414 12
- 13. Pin diagram TECNOCRATS INFOETECH @ 9540854414 13
- 14. Qualities of 89C2051 microcontroller Cost effectiveness. 89C2051 has only 15 I/O lines so, port1 and port3 are only available on it. The architecture of 89C2051 does not support any external address/data bus and therefore RD,WR signals are absent . The 89C2051 also supports full-duplex serial communication and six interrupt sources. TECNOCRATS INFOETECH @ 9540854414 14
- 15. THANK YOU By Tecnocrats Infotech 9540854414 TECNOCRATS INFOETECH @ 9540854414 15
Editor's Notes
- #2: This lecture is intended to introduce the basic concept of embedded systems. At the end of this lecture the student will be able to define embedded systems identify embedded systems differentiate embedded systems with non-embedded systems and non-embedded real time systems xyz
- #3: Highlight the interaction with the environment Input output communications require proper transduction and actuation So A/D conversion requirements can also be mentioned here A very important aspect that should be mentioned is that the design of the hardware and software of the ES derives its specifications from the environment with which it will interact xyz
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