I'm looking at making my own version of the BBB for a custom project. I see a note on Revision A6: "Noise issues were observed in other designs where the clock oscillator was getting hit due to a suspected issue in ground bounce. A zero ohm resistor was added to connect the OSC_GND to the system ground." A second resistor was added in the next revision to the 32kHz crystal circuit.
Could the GND_OSC nets be tied directly to DGND without zero ohm resistors? Was the resistor used just in case the change caused problems and could be left unpopulated if so? I see no issues in further revisions so I'd assume that these changes fixed the issue, is that right? I'm asking because I suspect there might be another reason why resistors were used instead of just direct traces (like needing a 'single connection point' type of thing). Some clarification would be helpful indeed. Thanks, -Seth -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
