UNIT INSTRUMENT DEMONSTRATION OF CRC GENERATION

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UNIT INSTRUMENT DEMONSTRATION OF CRC GENERATION

• Imran Shafique Ansari 246808
• Saif Ahmad 237903
• Ahmad Qutb Al-Deen 232563

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OUTLINE

• Introduction
• Implemented Technique
• Description of The Implementation
• Demonstration of the Implementation
• Conclusion

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INTRODUCTION

• Cyclic Redundancy Check (CRC)
• Input Data Stream of Unlimited Length.
• Output Fixed Size Of Data and Remainder.
• Similar to Long Division, No Curry.
• Advantages
• Simple to implement.
• Easy to analyze mathematically.
• Detects common errors.
• Detects Burst Errors.

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OUTLINE

• Introduction
• Implemented Technique
• Description of The Implementation
• Demonstration of the Implementation
• Conclusion

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IMPLEMENTAION TECHNIQUE

• Shift Registers
• Length Length (Divisor) - 1
• XOR Gates Bit in the Divisor 1
• Loaded with 0s at the beginning
• MSD Feedback bit
• Data bits LSD, 1 by 1
• 0s End of data bits
• Final value (Shift Register) remainder

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IMPLEMENTAION TECHNIQUE

• Remainder ? 0s, end of data ? Transmitted Bit
  Stream
• Tx Rx same shift register
• Rx Loads shift registers with 0s
• Final Value 0s ? Valid CRC Code

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OUTLINE

• Introduction
• Implemented Technique
• Description of The Implementation
• Demonstration of the Implementation
• Conclusion

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DESCRIPTION OF THE IMPLEMENTATION

• Checking of Inputs.

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DESCRIPTION OF THE IMPLEMENTATION

• Generation of FCS

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DESCRIPTION OF THE IMPLEMENTATION

• Introducing Error in The Transmitted Data

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DESCRIPTION OF THE IMPLEMENTATION

• Remainder Calculation

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DESCRIPTION OF THE IMPLEMENTATION

• Data Verification

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OUTLINE

• Introduction
• Implemented Technique
• Description of The Implementation
• Demonstration of the Implementation
• Conclusion

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Demonstration of the Implementation
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Conclusion

• Efficient Error Detection Technique.
• New Software LabVIEW.
• Implement Theoretical Technique to Analytical.
• Understanding of The Process of CRC.

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QUESTIONS