Derek Molloy has published two very nice tables on github, with everything you need. Just do a web search for BeagleboneBlackP9HeaderTable or ...P8... and you will find them.
>From that table, P9.17 = PIN # 87, addr = 0x44E1095C, offset = 0x15C, in mode7 >= gpio[5] cat /sys/kernel/debug/pinctrl/44e10800.pinmux/pins to see all your current settings Don’t forget the 4 ma current limit for GPIOs! Too low for even an LED. From: matt Sent: Friday, February 14, 2014 10:40 AM To: [email protected] Subject: [beagleboard] How do you tell the Offset addresses of all the I/O pins? Hi, I got a BBB. I'm building a DTO (device tree overlay) in order to set GPIO9_16 (P9-15) to Mode7 (GPIO Mode). Where can I find the offset address of all the I/O pins? (in P8 and P9 expansion headers) Is it stored on the BBB itself at some file? Thank you. -- 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/groups/opt_out. -- 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/groups/opt_out.
