Reed-Solomon Decoder

[NIRF-Group]

Description

Description-Separate-1

Overview

This IP performs decoding on the Reed-Solomon encoded data packets.

Description

National Instruments has partnered with Prentice Hall to bring you large portions of in-depth technical topics from several PTR RF and Communications books, including Digital Communications: Fundamentals and Applications, 2nd Edition. This series of content is designed for a broad range of audiences, from experts who want to review a specific topic to students who need easy-to-understand documentation for their projects.

Steps to Implement or Execute Code

The IP specifications are as mentioned below.

• Decodes Reed-Solomon code (255, 239) encoded bits.
  • Code word length(n)= 255 symbols
  • Data word length(k)=239 symbols
  • Parity length(2t)= 16 symbols
• Supports shortened codes.
• Symbol size= 8 bits
• Error correcting capability= 8 symbols
• Field generator polynomial p(x)= x^{8 + x}4 + x^{3 + x}2+ 1
• Code generator polynomial g(x)= (x + a^{0)(x + a}1)(x + a^{2)…(x + a}15);a= 0x02
• Fully synchronous design using a single clock, with speed optimization.
• Maximum clock rate= 51MHz
• The IP handles one symbol(8 bits) per clock cycle and requires a maximum of 850 clock cycles to process a block of n symbols

NOTE: The example requires Modulation toolkit to perform Reed-Solomon encoding on the PC.

Requirements

Software Requirements:

LabVIEW FPGA 2010

LabVIEW FPGA RF Communications Library 3.0 available on NI Labs

Hardware Requirements:

PXIe-5641R

**This document has been updated to meet the current required format for the NI Code Exchange.**

Description-Separate-2

[keanu13]

NI Labs can promote its Reed Solomon encoder decoder at various IP portals such as IPsupermarket.com, design-reuse or chipestimate

[Alann]

Can this code be modified to work for some other field generator polynomial?