/members-area/personalblogs/b/blog/posts/more-on-quiet-low-i-o-drivers-and-ground-bounceGround bounce can plague digital I/O lines with bit errors and turn your hair grey trying to uncover the cause in the process. But there is a trick you can use to make the analysis a little easier: using a quiet-low I/O driver as a sense line to reveen-USTelligent Community 12https://community.element14.com/members-area/personalblogs/b/blog/posts/more-on-quiet-low-i-o-drivers-and-ground-bounceThu, 18 Apr 2019 12:21:34 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:94cd2c03-6582-4b69-84dd-1e90bae1b10aGough Lui0<p>I&#39;m still very much a novice, but it&#39;s always nice to pick up these kinds of tips - I&#39;ll probably start monitoring the quiet low and global GND to understand the output driver characteristics, while taking care to ensure the connection itself doesn&#39;t introduce extra bounce. I suspect this could be highly applicable to high-speed FPGAs with many I/O blocks in a complex ... especially if violating the maximum simultaneous switching limits or just wanting to observe simultaneous switching noise. Perhaps in those circumstances, changing certain signals out of certain I/O blocks to other blocks might reduce the impact somewhat.</p><p>&nbsp;</p><p>- Gough</p><img src="https://community.element14.com/aggbug?PostID=6884&AppID=293&AppType=Weblog&ContentType=0" width="1" height="1">