Contributor
Regular ContributorHi HPB,
As I understand it, you have some inquiries related to the seed for the S10 hard PRBS generator. For your information, as I search through the documentation as well as internal database, I am unable to locate any specific info on this. I am currently consulting Factory to see if they have any insight.
By the way, generally we would directly use the PRBS pattern, connected to scope to capture the eye without the need to know the seed value. Mind share with me further on how you will be using the seed in your debugging? This would be helpful in case Factory would like to seek clarificaiton for further information on the request.
Please let me know if there is any concern. Thank you.
Best regards,
Chee Pin
ContributorHi,
Thanks for your effort for consulting your factory.
Actually our debugging team has a set-up (with 33G digital oscilloscope) to validate the protocol specific eye opening and we are testing our custom FMC card with Stratix 10 SX dev kit.
The debugging set up also supports all the PRBS patterns as supported by Intel Stratix 10 Transceiver hard PRBS with same polynomial. However, debugging team observed some discrepancy and it is doubtful whether the received pattern is PRBS31 or not. Just to cross verify the received bit sequence in the oscilloscope , we want the seed value or the first 64-bit sequence.
With regards,
HPB
ContributorHi @cheepinc_Intel ,
Also, we observed that as soon as the transceiver channels are loaded in the Transceiver toolkit, TX lines are driven with default pattern. Also, if we click stop, then only RX side "checker" field will be pauses, but still the TX is line is continued to toggle.
I think the toolkit starts transmitting without user input, the START and STOP buttons related only to receiver to check the BER and other status.
Can you please clarify on this behavior?
With regards,
HPB
