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Message
From: "Jerrold Wen" <jwen@v...>
Date: Tue, 26 Aug 2003 10:56:14 -0400
Subject: RE: [oc] 12bit data in 16bit packets?
Hi Colin,
I'm not too worried about error correction, but I could use one of the bits
for parity check or CRC or something. Forward error correction is new to
me. I did a quick google search and it sounds interesting. Is there
anywhere I can find the algorithms for FEC? Can you point me to some good
websites?
Thanks,
Jerrold.
-----Original Message-----
From: owner-cores@o... [mailto:owner-cores@o...] On Behalf
Of Colin Marquardt
Sent: August 25, 2003 11:38 AM
To: cores@o...
Subject: Re: [oc] 12bit data in 16bit packets?
"Jerrold Wen" <jwen@v...> writes:
> Does anyone have any good ideas on how to pack 12bit data in to 16bit
> packets so that the extra bandwith is not wasted sending zeroes? I
> was thinking of using something like a four word FIFO and a barrel
> shifter. For every four 12-bit words that are input, three 16bit
> words are output. One clock is used up at the beginning to 'arm' the
> FIFO.
I'm not really answering your question, but have you considered using the
extra bits for forward error correction?
Cheers,
Colin
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