Thanks John. Got it cleared. :) On Monday, May 19, 2014 1:49:16 AM UTC+5:30, john3909 wrote: > > > From: Dhruv Vyas <[email protected] <javascript:>> > Reply-To: <[email protected] <javascript:>> > Date: Sunday, May 18, 2014 at 2:42 AM > To: <[email protected] <javascript:>> > Subject: [beagleboard] Can "allocated pins" on BBB be used as GPIOs ? > > Hello, > > I recently started working on my BBB A6A. I went through necessary getting > started guides and it works like a charm. Now as a part of my project, I > need to use some of the GPIOs on P8/P9 header. While googling how to use > them as a GPIO, and how to set pinmux and etc, I went through this guide. > http://derekmolloy.ie/gpios-on-the-beaglebone-black-using-device-tree-overlays/and > he explained everything very clearly. > > Now my question is : is there any way i can use allocated pins as GPIOs > other than available pins ? If yes, how ? If no, why ? > > For example, P9_19 and P9_20 are Allocated to (Group: pinmux_i2c2_pins) > and hence it can not be used as GPIOs ? > > If pins are also connected to circuitry on the board that cannot be > disabled then you cannot use those pins for GPIO. For example, pins used > for the eMMC can be used for GPIO as long as eMMC is disabled. Same for LCD > pins, but then you cannot use LCD or HDMI. I2C2 isn’t connected to other > circuity on the board so you can use it for GPIO. > > Regards, > John > > > > Thanks. > > > > -- > 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] <javascript:>. > For more options, visit https://groups.google.com/d/optout. > >
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