High Speed Intel Reed Solomon FPGA IP Core Documentation does not provide details, see questions in section Details.

[ACHAD]

1. The field polynomial in the decoder section does not have any information on how it should be used. I am using it for Infiniband and believe it is the same as Ethernet. On what basis should I select one of the many choices in the drop down menu in Platform Designer.

2. When turning on Decoding Failure and Error Symbol Count, there is no way to tell which bits correspond to the Decoding Failure and which ones to the Error Symbol Count. All I see is 4 extra bits on the output of the decoder i.e. data bits out = data bits in +4.

3. The latency selection in Platform Designer changes from say 93 to 45 (same for some other selections). What is the correct number?

[Vicky1]

Hi,

First you need to become familiar with working of Reed-Solomon Codes. Refer the "Reed-Solomon Codes" from below link

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/wp/g709_wp.pdf

Refer "Figure 3–1. RS Codeword Example" from below link

https://www.intel.co.jp/content/dam/altera-www/global/ja_JP/pdfs/literature/ug/rs-compiler_ug.pdf

For Latency selection check " Performance and Resource Utilization" for given devices from the link below that might helps to you.

https://www.intel.cn/content/www/cn/zh/programmable/documentation/dmi1424790284305/dmi1424790559225.html

Best Regards

Vikas Jathar 

(This message was posted on behalf of Intel Corporation)