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Altera_Forum's avatar
Altera_Forum
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15 years ago

Any ALTLVDS gurus out there?

I have two non-GX alteras (Stratix II & Stratix IV) between which I need to sling some data. Each device has it's own clock domain, and I only have a one bit connection between the two. What's the ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

How much data do you need to send? You might want to consider a UART. If the FPGAs generate UART sampling clocks that are a few times higher than the baud rate, you should be able to recover the data just fine. The LVDS channels can operate at up to ~1Gbps, so if you were oversampling at the receiver LVDS by 8x your baud rate could be 125MHz, and with 10 clocks or so per byte, you should hit 10Mbytes/sec ok.

Cheers,

Dave