Altera Reed-Solomon Compiler - Manual (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 Variable 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 Variable 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 .