On Thu, Jan 14, 2016 at 7:31 PM, Dean <dean.b...@gmail.com> wrote:
>
> I am hoping that someone might be able to help me out on this one. I
> recently updated my Beaglebone Black Image as listed below in the hopes of
> running a script that would allow me to test the i/p and o/p's on my BBB.
> Unfortunately although the code compiles and there does not appear to be
> any issues there the GPIO port to be updated simply does not take. I
> highlighted the problem in yellow. Any help or insight into this would
> really be appreciated. Thanks in advance.
>
>
> GPS Overlay not working on Beaglebone Black 4.1.12-ti-r29 Ubuntu 15.04 and
> Debian 8.2 VM
>
>
> Linux beaglebone 4.1.12-ti-r29 #1 SMP PREEMPT Mon Nov 9 22:46:19 UTC 2015
> armv7l GNU/Linux
>
>
> BeagleBoard.org Debian Image 2015-11-12
>
>
> /*
>
> * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
>
> *
>
> * This program is free software; you can redistribute it and/or modify
>
> * it under the terms of the GNU General Purpose License Version 2 as
>
> * published by the Free Software Foundation
>
> *
>
> * Original from:
> github.com/jadonk/validation-scripts/blob/master/test-capemgr/
>
> *
>
> * Modified by Derek Molloy for the example on www.derekmolloy.ie
>
> * that maps GPIO pins for the example
>
> */
>
>
> /dts-v1/;
>
> /plugin/;
>
>
> /{
>
> compatible = "ti,beaglebone", "ti,beaglebone-black";
>
> part-number = "DM-GPIO-Test";
>
> version = "00A0";
>
>
> fragment@0 {
>
> target = <&am33xx_pinmux>;
>
> __overlay__ {
>
> pinctrl_test: DM_GPIO_Test_Pins {
>
> pinctrl-single,pins = <
>
>
> 0x078 0x07 /* P9_12 60 OUTPUT MODE7 - The LED Output */
>
> 0x184 0x2f /* P9_24 15 INPUT MODE7 none - The Button Input */
>
> 0x034 0x37 /* P8_11 45 INPUT MODE7 pullup - Yellow Wire */
>
> 0x030 0x27 /* P8_12 44 INPUT MODE7 pulldown - Green Wire */
>
> 0x024 0x2f /* P8_13 23 INPUT MODE7 none - White Wire */
>
> /* OUTPUT GPIO(mode7) 0x07 pulldown, 0x17 pullup, 0x?f no pullup/down */
>
> /* INPUT GPIO(mode7) 0x27 pulldown, 0x37 pullup, 0x?f no pullup/down */
>
>
> >;
>
> };
>
> };
>
> };
>
>
> fragment@1 {
>
> target = <&ocp>;
>
target-path="/";
> __overlay__ {
>
> test_helper: helper {
>
> compatible = "bone-pinmux-helper";
>
> pinctrl-names = "default";
>
> pinctrl-0 = <&pinctrl_test>;
>
> status = "okay";
>
> };
>
> };
>
> };
>
> };
>
>
> root@beaglebone:~/boneDeviceTree/overlay# more build
>
>
> #!/bin/bash
>
> echo "Compiling the overlay from .dts to .dtbo"
>
>
> dtc -O dtb -o DM-GPIO-Test-00A0.dtbo -b 0 -@ DM-GPIO-Test.dts
>
Wrong dtc..
Follow:
https://github.com/beagleboard/bb.org-overlays
and run:
./dtc-overlay.sh
then use:
/usr/local/bin/dtc
>
> root@beaglebone:~/boneDeviceTree/overlay# ./build
>
>
> Compiling the overlay from .dts to .dtbo
>
>
> root@beaglebone:~/boneDeviceTree/overlay# ls -al
>
>
> total 20
>
> drwxrwxr-x 2 root root 4096 Nov 12 2015 .
>
> drwxrwxr-x 10 root root 4096 Nov 12 2015 ..
>
> -rw-r--r-- 1 root root 986 Nov 12 21:23 DM-GPIO-Test-00A0.dtbo
>
> -rw-r--r-- 1 root root 1591 Nov 12 2015 DM-GPIO-Test.dts
>
> -rwxr-xr-x 1 root root 124 Nov 12 2015 build
>
>
> root@beaglebone:~/boneDeviceTree/overlay# cp DM-GPIO-Test-00A0.dtbo
> /lib/firmware/
>
>
> root@beaglebone:/lib/firmware# cat $SLOTS
>
> 0: PF---- -1
>
> 1: PF---- -1
>
> 2: PF---- -1
>
> 3: PF---- -1
>
> 4: P-O-L- 0 Override Board Name,00A0,Override Manuf,cape-universaln
>
>
> root@beaglebone:/lib/firmware# echo DM-GPIO-Test > $SLOTS
>
dmesg | grep bone
will show you more..
>
> root@beaglebone:/lib/firmware# cat $SLOTS
>
> 0: PF---- -1
>
> 1: PF---- -1
>
> 2: PF---- -1
>
> 3: PF---- -1
>
> 4: P-O-L- 0 Override Board Name,00A0,Override Manuf,cape-universaln
>
cape-universaln is already loaded to..
disable by removing: "cape_universal=enable" from:
/boot/uEnv.txt
> 5: P-O-L- 1 Override Board Name,00A0,Override Manuf,DM-GPIO-Test
>
> root@beaglebone:/lib/firmware# cat $PINS|grep 878
>
>
> pin 30 (44e10878.0) 00000037 pinctrl-single
>
> root@beaglebone:/lib/firmware# cat $PINS|grep 984
>
> pin 97 (44e10984.0) 00000037 pinctrl-single
>
> root@beaglebone:/lib/firmware# cat $PINS|grep 834
>
> pin 13 (44e10834.0) 00000027 pinctrl-single
>
> root@beaglebone:/lib/firmware# cat $PINS|grep 830
>
> pin 12 (44e10830.0) 00000027 pinctrl-single
>
> root@beaglebone:/lib/firmware# cat $PINS|grep 824
>
> pin 9 (44e10824.0) 00000027 pinctrl-single
>
>
>
>
> --
> For more options, visit http://beagleboard.org/discuss
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--
Robert Nelson
https://rcn-ee.com/
--
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