Forum Discussion
Altera_Forum
Honored Contributor
11 years ago --- Quote Start --- I heard that PRBS7 signal pattern I want to use is default. So, I don't need to configure about that any more. --- Quote End --- Why PRBS7 only? If you want to test your links, then you need to make sure you use multiple patterns, and data patterns that match your final application. PRBS7 may not expose all issues. For example, I had used AC-coupling capacitors that were too small (100pF instead of 0.1uF) and PRBS7 worked fine, but PRBS15 and 31 did not. Increasing the size of the AC-coupling capacitors fixed the issue. Cheers, Dave