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Altera_Forum
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14 years ago

altera LVDS receiver

I am currently debugging LVDS receiver on my hardware implemented by altera IP: altlvds_tx/rx. I am facing a problem. When incoming data include more than 4 or 5 successive 0, the received data would...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

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Ok.

Have you tried this on multiple versions of the board, just to make sure you are not using a bad one?

There are no restrictions like this as far as the IP is concerned.

However, the transmitted/received data format does depend on your connection to the 'outside world', eg. if you do AC couple to the fiber receivers, then successive zeros would be bad.

Can you confirm that your hardware connection is LVDS transmitter to LVDS receiver (no AC coupling)?

Cheers,

Dave

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Thanks Dave, it is LVDS link between transmitter and receiver. If there is AC coupling, the bad data may occur for any data rather than only for succesive 0. Is this logic correct? Anyway, I will check if there is AC coupling.

Regards