Additionally, each pin has a maximum value in current that it can sink or source. I can not remember is these values are listed in the datasheet, TRM, or SRM. But these values are listed for each pin.
On Mon, Feb 27, 2017 at 12:13 PM, William Hermans <[email protected]> wrote: > > > On Mon, Feb 27, 2017 at 11:49 AM, mzimmers <[email protected]> wrote: > >> Hi, Andrew - >> >> Yeah, I suppose I should have included that information. If your book is >> the same edition as mine, on page 315 you'll find figure 8-16. There, the >> author shows the wiring connections between the BBB and the Arduino. It's >> the physical connections to the Arduino I don't know how to do. I can't >> just insert the wires I use for the BBB and the breadboard; the holes are >> too big, plus that would be a hokey connection anyway. >> >> This isn't the only place in the chapter where there are some "mystery >> connections" but I imagine the others will work the same way this one does >> (whatever that turns out to be). >> > > This is something you should contact, and discuss with D.R. Molloy. > > I know nothing about the mini, but I do have his book, just not accessible > at this moment. So I can not look at the page you mentioned. However there > are 3-ish ways to connect one embedded system to another. The easiest of > which is going to be UART, However, you need to understand that the > Beaglebones I/O is all 3v3 signalling. Except for the ADC, if you wish to > count that in the I/O category. Which the ADC is 1v8, or 1.8v max input. > > Anyway, you need to check and make absolutely sure that whatever you > connect to the Beaglebone does not exceed 3.3v, ever. Additionally, the > pins on the beaglebone can not have power applied to them at power up, or > power down. Such an occurrence could destroy the Beaglebone's processor. > One can avoid this problem by using various isolation techniques. Which > I'll let someone else describe in more detail, if needed. As I'm not en EE > either. Just a low level / applications software developer. > -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CALHSORqm%2BH0PoRGOHsu_yPExETMdywe0wbEnq_6YbDJyqz79Hw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
