hardware Viterbi
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hardware Viterbi

 
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lanbaba
Guest
Posted: Fri Dec 23, 2005 3:43 pm    Post subject: hardware Viterbi Reply with quote
Hi all,

I implemented an OFDM receiver in C++ and it turs out that some parts ar
bottle necks for the speed, like e.g. Viterbi decoding and RS decoding
Does anyone know if there is a hardware based decoding solution on th
market? Ideally it would be a PCI card for PC and configurable fo
different codes by software. Don't tell me about general purpose DSPs o
FPGA. It takes too long for me to learn their usage. I need something tha
I can learn and use within three days.

Thanks you any information and merry Christmas!

Lanbaba
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John Herman
Guest
Posted: Sun Dec 25, 2005 12:21 am    Post subject: Re: hardware Viterbi Reply with quote
If I remember correctly, the TI TMS320C54X/55X DSP chips have a single
instruction to do a cycle of Viterbi decoding. You should be able to find on
of these chips on a PCI board somewhere.

In article <gL-dnbmbrvBEWzbeRVn-sA@giganews.com>, "lanbaba" <lanbaba@gmx.ch>
wrote:
Quote:

Hi all,

I implemented an OFDM receiver in C++ and it turs out that some parts are
bottle necks for the speed, like e.g. Viterbi decoding and RS decoding.
Does anyone know if there is a hardware based decoding solution on the
market? Ideally it would be a PCI card for PC and configurable for
different codes by software. Don't tell me about general purpose DSPs or
FPGA. It takes too long for me to learn their usage. I need something that
I can learn and use within three days.

Thanks you any information and merry Christmas!

Lanbaba
Back to top
lanbaba
Guest
Posted: Mon Dec 26, 2005 1:15 am    Post subject: Re: hardware Viterbi Reply with quote
Quote:
If I remember correctly, the TI TMS320C54X/55X DSP chips have a single
instruction to do a cycle of Viterbi decoding. You should be able t
find on
of these chips on a PCI board somewhere.


Thank you for your answer. Maybe I should invest some time to lear
TMS320C54X/55X. I guess it can also do soft decision Viterbi, right?
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