topic Re : Coding using MT RS Encoder Decoder in LabVIEW Communications System Design Suite

Coding using MT RS Encoder Decoder

alexpas — Fri, 04 Dec 2015 15:25:00 GMT

I want to implement a RS(255,239) in the attached VI. Can anyone help? I don't understand what'is wrong?

I use an MT Bit Generator (3824 bits) --> MT Pack Bits (bits per Integer = 😎 --> MT RS Encoder (255,239 bits per symbol = 8 )

When accessing the RS Encoder I get Error -1 occured The NUmbers cant be Zero

Re : Coding using MT RS Encoder Decoder

ThibaultP — Wed, 09 Dec 2015 10:01:59 GMT

Hi alexpas,

When running your VI, I also the following error message :

Error -21892 occurred at mod_Validate RS code prms.gvi "RS Galois primitive element must be relatively prime to the Galois field order 2^m-1 in GF(2^m)."

Modifying the Message bit count may solve your issue,

Regards

Re : Coding using MT RS Encoder Decoder

alexpas — Wed, 09 Dec 2015 19:08:21 GMT

Actually the message bits are selected on purpose to be t*239 in order to meet the requirement for the MT RS encoder as it is a pack encoder. Nevertheless I've tried that but still the same errors!

Re : Coding using MT RS Encoder Decoder

tcap — Thu, 17 Dec 2015 15:05:21 GMT

Hello alexpas,

I was able to reproduce the error -1. I have done some investigation into the error and found that it is thrown by one of the VI's subVIs. I modified the mod_Configure RS attributes.gvi into to resolve this error.

Please download the attached VI, and use it to replace the <LabVIEW Comms 1.1>\Resources\vi.lib\Native\mod_Configure RS attributes.gvi.

This should resolve the error. Please see the attached VI.

Regards,

Re : Coding using MT RS Encoder Decoder

alexpas — Fri, 18 Dec 2015 20:00:51 GMT

Thank you Thomas,

Your assistance on my issues is priceless.

Re : Coding using MT RS Encoder Decoder

tcap — Fri, 18 Dec 2015 20:46:29 GMT

Thanks! I really appreciate your feedback!!!