Altera Reed-Solomon Compiler Manuel d'utilisateur télécharger pdf (Page 11)

Chapter 2: Getting Started 2–3

Parameterizing the Reed Solomon MegaCore Function

December 2014 Altera Corporation Reed-Solomon Compiler

User Guide

9. After generating and instantiating your IP variation, make appropriate pin

assignments to connect ports.

f For information about using a legacy parameter editor, refer to “Specifying IP Core

Parameters and Options (Legacy Parameter Editors)” in the Introduction to Altera IP

Cores.

Parameterizing the Reed Solomon MegaCore Function

To parameterize your MegaCore function, follow these steps:

1. Select Encoder or Decoder.

2. If you select Encoder, you can also turn on the Variabl e option.

For more information about the variable option, refer to “Variable Encoding and

Decoding” on page 3–3.

3. If Decoder is selected, the following controls are available:

a. You can turn on the Erasures-supporting decoder or Va ri ab le options.

b. You can select Full or Half keysize.

c. You can turn on the Error Symbol or Bit Error outputs. For the bit error output,

you can select Split Count or Full Count.

For more information about these parameters, refer to Table 3–2 on page 3–7.

4. Click Next.

5. Select the parameters that define the specific RS codeword that you wish to

implement (Figure 2–5).

1 You can enter the parameters individually, or click DVB Standard to use

digital video broadcast (DVB) standard values, or CCSDS Standard to use

the CCSDS standard values.

For more information about these parameters, refer to Table 3–3 on page 3–8.

6. Click Next.

7. For a decoder throughput calculation, enter the frequency in MHz, select the

desired units, and click Calculate. Figure 2–6 shows the decoder throughput

calculation page.

For more information about the throughput calculator, refer to “Throughput

Calculator” on page 3–10.

8. Click Finish.

For more information about the RS Compiler parameters, refer to “Parameters” on

page 3–7.

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Altera Reed-Solomon Compiler Manuel d'utilisateur Page 11