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RMees's avatar
RMees
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7 years ago

SuperlightII word alignment fails on cable.

I have ported the SuperLightII example design on a Nallatech 385 board (ARIA 10 10AX115S2F45I2SGES). The IP works fine if I use a loopback device on the QSFP port. But when I connect two ports, ea...
RMees's avatar
RMees
Icon for New Contributor rankNew Contributor
7 years ago

At the moment I use a Cisco QSFP-40G-SR4 module, instead of the Finisar that Nallatech has used for testing.

Finisar modules have been ordered and should arrive this week.

I think that if the transceiver toolkit test doesnt detect any errors then the physical link is not causing the problem.

As I understand it the word alignment is reached by the NIOS core adjusting the data capture.