OK. I will fix them in the next version and state that both are options in each of those locations to prevent the issue from occurring.. That should take care of the bug.
.As you can see from the schematic, the I/O rails are powered by 3V3A. Expansion rail is 3V3B which is enabled by 3V3A, so this should not be any issues if you do what you are saying you are doing... Gerald On Fri, Oct 17, 2014 at 3:47 PM, Britton Kerin <[email protected]> wrote: > On Thu, Oct 16, 2014 at 12:27 PM, Gerald Coley <[email protected]> > wrote: > > They are identical actions. Same result. Using reset is easier than > waiting > > on the voltage. The desired action is after voltage. Reset gives you a > > signal that is easy to use in order to complete the desired function. > This > > is not a "bug". > > Sections 7.1 and 8.6.2 give different descriptions of what to wait for > before driving IO pins, without mentioning each other. How is that > not a documentation bug? > > > This is about DRIVING INTO these pins form external circuitry. It is not > > about setting up SW to prevent damage from the condition. The processor i > > sin reset and unable to do anything with the pins until after reset. > > > > There is no DANGER if you do either of these method. > > Ok, thanks. One related question: I have a switch debounce IC > (MAX6818) powered from the 3V3 rail. Assuming its outputs rise > together with its power, will the connected bone inputs probably be > ok, or is it necessary to wait for 3V3 to be all the way up to be > safe? > > Britton > > -- > 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 [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
