Re: Freerunner GPIO locations
On 18 February 2014 15:22, Paul Wise pa...@bonedaddy.net wrote: any schematics out there with their location? ideally something which relates them to the nodes in /sys/class/gpio/ These are the schematics I can find related to this: http://downloads.openmoko.org/developer/schematics/GTA02/Schematics_Freerunner-GTA02_A5-A7cumulative_public_RC0.pdf http://svn.openmoko.org/trunk/doc/hardware/GTA02v4/gpio.txt hi, yes, thanks for those, i have seen them already. they help, but don't enable me to relate the nodes in /sys/class/gpio/ to anything on the board. the specific files in that directory are: gpiochip0 gpiochip160 gpiochip224 gpiochip416 gpiochip480 gpiochip96 gpio164 gpiochip128 gpiochip192 gpiochip32 gpiochip448 gpiochip64 how do those files relate/connect to the components and solder pads listed on the schematics? which point on the board would i solder to if i wanted to control, say, the gpio named gpio164, or gpiochip0? cheers, -- robin What the world needs now is love sweet love ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Freerunner GPIO locations
hi all, apologies if this question is answered elsewhere, i've done lots of searching of the openmoko wiki and the web, and can't find an answer i'd like to interface my freerunner with hardware switches to control some software. i believe gpio is the best way to do this, and have help from various bodies at my local maker space to do so. problem is, i can't locate the gpio pins on the motherboard. are there any schematics out there with their location? ideally something which relates them to the nodes in /sys/class/gpio/ cheers, -- robin What the world needs now is love sweet love ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Freerunner GPIO locations
On Mon, Feb 17, 2014 at 7:17 PM, Robin Paulson wrote: problem is, i can't locate the gpio pins on the motherboard. are there any schematics out there with their location? ideally something which relates them to the nodes in /sys/class/gpio/ These are the schematics I can find related to this: http://downloads.openmoko.org/developer/schematics/GTA02/Schematics_Freerunner-GTA02_A5-A7cumulative_public_RC0.pdf http://svn.openmoko.org/trunk/doc/hardware/GTA02v4/gpio.txt -- bye, pabs http://wiki.openmoko.org/wiki/User:PaulWise ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Freerunner GPIO locations
On 02/17/2014 06:17 AM, Robin Paulson wrote: hi all, apologies if this question is answered elsewhere, i've done lots of searching of the openmoko wiki and the web, and can't find an answer i'd like to interface my freerunner with hardware switches to control some software. i believe gpio is the best way to do this, and have help from various bodies at my local maker space to do so. problem is, i can't locate the gpio pins on the motherboard. are there any schematics out there with their location? ideally something which relates them to the nodes in /sys/class/gpio/ cheers, If you aren't able to find the GPIOs, you could add an i2c-gpio expander. The i2c pad locations are known: http://chonyota.net/freerunner/FRNBv2/FRNBv2-Installation.pdf Good Luck, Ben ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
