12:27 <Guest89> Hi everyone

16:40 <mattb0ne> when you power the bone fron the rails should gnd pin be wired to an actual GND or just a return wire

22:06 <zmatt> wtf is "actual GND" ... a bucket filled with soil? :P

23:00 <Guest8428> Hello. I would like to power an AI-64 with a battery module through a voltage regulator. Page 50 of the datasheet suggests it is possible to provide power via the expansion connectors on the board. I've already narrowed down pins 1 and 2 as ground, however I am unsure which pins can be used for the input voltage. Could you point me in the right

23:00 <Guest8428> direction? Thank you.

23:00 <zmatt> I'd assume it's the same as other beaglebones, i.e. P9.01+02 = GND, P9.05+06 = 5V, but let me double-check

23:02 <zmatt> yeah, P9.05 and P9.06 are tied to the 5V DC input jack center pin

23:03 <zmatt> so putting 5V on that is equivalent to powering the board via that jack

23:03 <Guest8428> Great, thank you

23:08 <Guest8428> This is a side question, but are there any references for all the acronyms and shorthands used in the connectors section? e.g. figuring out what "RGMII7_RD1" or "MCASP4_ACLKR" mean

23:08 <zmatt> the connectors section of?

23:08 <Guest8428> the datasheet

23:09 <Guest8428> 2.5.6

23:10 <zmatt> are you referring to https://docs.beagleboard.org/latest/boards/beaglebone/ai-64/ch07.html ?

23:10 <zmatt> regardless, those are all signal names

23:10 <Guest8428> yes that one

23:10 <zmatt> e.g. MCASP4_ACLKR will be the ACLKR signal of the MCASP4 peripheral

23:12 <zmatt> if you want all the details then the authoritive source of information would be the SoC datasheet ( https://www.ti.com/lit/gpn/tda4vm ) and technical reference manual ( https://www.ti.com/lit/zip/spruil1 )

23:13 <zmatt> in many cases it's not too hard to guess, e.g. RGMII7_RD1 will be a pin belonging to an RGMII port, which means you can safely ignore that function since I very much doubt you'd get RGMII over those expansion headers ;)

23:14 <zmatt> or who knows I guess, maybe you could, but few people would care to

23:14 <zmatt> MCASP peripherals are digital audio interfaces (Multi-Channel Audio Serial Port)

23:15 <zmatt> for interfacing with audio codec chips

23:19 <Guest8428> ok looks like I won't be needing those, thank you