[beagleboard] Re: Beaglelogic with Linux beaglebone 4.9.36-ti-r46 #1

[dlf]

Hello,

I think I had a bad / legacy bootloader on the emmc.   I cleared it out and 
booted from the SD Card and it worked.
There is another "google groups" dedicated to Beaglelogic, but it is very 
quiet.  Kumar Abhishek is the "owner" of this group so maybe check over 
there

https://groups.google.com/forum/?utm_medium=email_source=footer#!topic/beaglelogic/FH-nsr6NXD0

cheers

On Friday, 11 August 2017 15:26:46 UTC+2, DLF wrote:
>
> Hello,
>
> Is anyone with a Beaglelogic using the 4.9.36-ti-r46 #1 ?.   
>
> I've followed the instructions/image from Abishek on 
> https://beaglelogic.readthedocs.io/en/latest/index.html but I can't get 
> it to work.
>
> Following the troubleshooting section on the "readthedocs" site everything 
> checks out okay also.  As far a I can tell the pins are not being Mux'd at 
> all, but I don't know where to go next(novice user) .  I've zero'd my emmc 
> so I'm sure I'm running from the SD card.
>
> I've been successful with an older version 
> (bone-debian-8.4-lxqt-4gb-armhf-2016-04-10-4gb.img) but would like to 
> upgrade.
>
> I don't mind to raise an issue for Abishek in git but I just wanted to see 
> if there is something else to try beforehand or if someone can confirm it 
> is working.
>
> I've made a posting over on the Beaglelogic group but it is a little 
> lonely over there...
>
> https://groups.google.com/forum/?utm_medium=email_source=footer#!forum/beaglelogic
>
> cheers,
> GL
>
>
>
>

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[beagleboard] Re: Beaglelogic with Linux beaglebone 4.9.36-ti-r46 #1

[DLF]

Hi - just to report back, I've sorted this out and the 4.9.36-ti-r46 #1 
release is working with Beaglelogic.

it turns out I had some old crap in my bootloader that was not zero'd out 
properly.

cheers,
GL


On Friday, 11 August 2017 15:26:46 UTC+2, DLF wrote:
>
> Hello,
>
> Is anyone with a Beaglelogic using the 4.9.36-ti-r46 #1 ?.   
>
> I've followed the instructions/image from Abishek on 
> https://beaglelogic.readthedocs.io/en/latest/index.html but I can't get 
> it to work.
>
> Following the troubleshooting section on the "readthedocs" site everything 
> checks out okay also.  As far a I can tell the pins are not being Mux'd at 
> all, but I don't know where to go next(novice user) .  I've zero'd my emmc 
> so I'm sure I'm running from the SD card.
>
> I've been successful with an older version 
> (bone-debian-8.4-lxqt-4gb-armhf-2016-04-10-4gb.img) but would like to 
> upgrade.
>
> I don't mind to raise an issue for Abishek in git but I just wanted to see 
> if there is something else to try beforehand or if someone can confirm it 
> is working.
>
> I've made a posting over on the Beaglelogic group but it is a little 
> lonely over there...
>
> https://groups.google.com/forum/?utm_medium=email_source=footer#!forum/beaglelogic
>
> cheers,
> GL
>
>
>
>

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[beagleboard] Beaglelogic with Linux beaglebone 4.9.36-ti-r46 #1

[DLF]

Hello,

Is anyone with a Beaglelogic using the 4.9.36-ti-r46 #1 ?.   

I've followed the instructions/image from Abishek on 
https://beaglelogic.readthedocs.io/en/latest/index.html but I can't get it 
to work.

Following the troubleshooting section on the "readthedocs" site everything 
checks out okay also.  As far a I can tell the pins are not being Mux'd at 
all, but I don't know where to go next(novice user) .  I've zero'd my emmc 
so I'm sure I'm running from the SD card.

I've been successful with an older version 
(bone-debian-8.4-lxqt-4gb-armhf-2016-04-10-4gb.img) but would like to 
upgrade.

I don't mind to raise an issue for Abishek in git but I just wanted to see 
if there is something else to try beforehand or if someone can confirm it 
is working.

I've made a posting over on the Beaglelogic group but it is a little lonely 
over there...
https://groups.google.com/forum/?utm_medium=email_source=footer#!forum/beaglelogic

cheers,
GL



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[beagleboard] Re: How do I make a copy of my BBB SD card?

[DLF]

Hello,

I did this a while ago using DD which should give you an exact copy of your 
SD card ...but you need to be careful with DD.

I made some notes here but you may need to adjust for your needs.

http://dumb-looks-free.blogspot.fr/2015/01/beaglebone-black-bbb-backup-image-of-sd.html

good luck
  




On Saturday, 29 October 2016 01:04:50 UTC+2, Lidia Toscano wrote:
>
> I am using Debian on my BBB.  I would like to make a copy of my SD card.  
> What is the process to replicate my SD card?  Your help will be greatly 
> appreciated.
>
> Thanks,
>
> Lidia
>

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[beagleboard] Re: Customize BBB-Board and add wifi module

[DLF]

Hello

I played with this a while ago.  A lot depends on which firmware you are 
running.

http://dumb-looks-free.blogspot.fr/2015/12/beaglebone-black-bbb-uart2-with-esp8266.html

should be some other examples via google - it is not real specific to BBB 
(maybe some raspberry pi examples that could be used)

good luck

On Friday, 27 May 2016 15:12:48 UTC+2, El Smiedro wrote:
>
> Hy everyone,
>
> I would like to customize the board of the BBB and add a wifi module (f.e. 
> the esp8266) to it. Maybe someone could give me a little advice how to do 
> it or know some link to a little tutorial.
> Thank you very much for your help.
>
> best regards
> Eric
>

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[beagleboard] Re: SPI overlay not working in 4.1.15

[DLF]

Hello

I think I had a similar issue and noted it here.  
https://groups.google.com/forum/#!topic/beagleboard/gOynYr8fgns
also this sounds similar
https://groups.google.com/forum/#!searchin/beagleboard/SPI|sort:date/beagleboard/Dy-WC86s5M0/W5sAeTX_BQAJ

bottom line=> can't mux the pins using the command line echo method => *I 
had to load the overlay **using bone_capemgr.enable in uEnv.txt.*

Maybe check with Charles Steinkuehler, he sounds like he knows this overlay 
stuff.

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Re: [beagleboard] How to get SPI1 working with 4.1 Kernel when mcasp is preventing the pins to be configured correctly

[DLF]

Hello

I had a similar issue as noted here : 
 https://groups.google.com/forum/#!topic/beagleboard/gOynYr8fgns

I found I could not mux the pins by loading the overlay from the command 
line *BUT* it did work when I loaded the overlay via boot/uEnv.txt

I still don't know why !!!


On Friday, 25 March 2016 18:12:02 UTC+1, Le Costaouec Vincent wrote:
>
> I'm confused because I recheck the wired configuration. I also tried on a 
> second beagleboneblack with the same configuration.
> So I'm lost. For me it still look like that the problem came from the pin 
> mux.
> In fact 
> #  cat $PINS | grep '990\|998\|994\|99c'
> pin 100 (44e10990.0) 0027 pinctrl-single 
> pin 101 (44e10994.0) 0027 pinctrl-single 
> pin 102 (44e10998.0) 0027 pinctrl-single 
> pin 103 (44e1099c.0) 0027 pinctrl-single 
> This mean that the pins are not correctly configure, in fact they should 
> be configure at 0x33 0x33 0x13 and 0x13, isn't it ?
> And since I started configuring caps and pinmux it is the only time It 
> doesn't correspond with the dts.
>
> # dmesg | grep bone
> [0.00] Linux version 4.1.18-bone20 (lecostaouec@mppdev) (gcc 
> version 4.9.3 20150413 (prerelease) (Linaro GCC 4.9-2015.05) ) #4 Fri Mar 
> 18 15:16:19 CET 2016
> [0.00] Kernel command line: console=ttyO0,115200n8 
> bone_capemgr.enable_partno=BB-SPIDEV1 root=/dev/mmcblk0p1 ro 
> rootfstype=ext4 rootwait
> [3.998684] usb usb1: Manufacturer: Linux 4.1.18-bone20 musb-hcd
> [4.349285] bone_capemgr bone_capemgr: Baseboard: 
> 'A335BNLT,00C0,4414BBBK9699'
> [4.356616] bone_capemgr bone_capemgr: 
> compatible-baseboard=ti,beaglebone-black - #slots=4
> [4.422658] bone_capemgr bone_capemgr: slot #0: No cape found
> [4.482655] bone_capemgr bone_capemgr: slot #1: No cape found
> [4.542654] bone_capemgr bone_capemgr: slot #2: No cape found
> [4.602654] bone_capemgr bone_capemgr: slot #3: No cape found
> [4.608439] bone_capemgr bone_capemgr: enabled_partno PARTNO 
> 'BB-SPIDEV1' VER 'N/A' PR '0'
> [4.616751] bone_capemgr bone_capemgr: slot #4: override
> [4.622088] bone_capemgr bone_capemgr: Using override eeprom data at 
> slot 4
> [4.629091] bone_capemgr bone_capemgr: slot #4: 'Override Board 
> Name,00A0,Override Manuf,BB-SPIDEV1'
> [4.638497] bone_capemgr bone_capemgr: initialized OK.
> [4.645406] bone_capemgr bone_capemgr: slot #4: dtbo 
> 'BB-SPIDEV1-00A0.dtbo' loaded; overlay id #0
>
> # cat /proc/cmdline 
> console=ttyO0,115200n8 bone_capemgr.enable_partno=BB-SPIDEV1 
> root=/dev/mmcblk0p1 ro rootfstype=ext4 rootwait
>
>
> The other issue could be that we are not using exatly the same version of 
> the kernel 
> # uname -ar
> Linux beagle01 4.1.18-bone20 #4 Fri Mar 18 15:16:19 CET 2016 armv7l 
> GNU/Linux
>
> Or I'm I wrong and 4.1.18-ti-r55 is the same as 4.1.18-bone20 ?
> Thanks for your time
>
>
> Le vendredi 25 mars 2016 16:49:55 UTC+1, RobertCNelson a écrit :
>>
>> On Fri, Mar 25, 2016 at 10:01 AM, Le Costaouec Vincent 
>>  wrote: 
>> > I tried directly by copying and past this one, and I had still the same 
>> > answer. In addition I have tried to monitor the different signal on the 
>> > scope, nothing. 
>> > Moreover, nothing new appears on the dmesg. 
>>
>> Yeah, double check your wires, it works as-is... 
>>
>> root@beaglebone:~# ./spidev_test -D /dev/spidev2.1 
>> spi mode: 0 
>> bits per word: 8 
>> max speed: 50 Hz (500 KHz) 
>>
>> FF FF FF FF FF FF 
>> 40 00 00 00 00 95 
>> FF FF FF FF FF FF 
>> FF FF FF FF FF FF 
>> FF FF FF FF FF FF 
>> DE AD BE EF BA AD 
>> F0 0D 
>> root@beaglebone:~# ./spidev_test -D /dev/spidev2.0 
>> spi mode: 0 
>> bits per word: 8 
>> max speed: 50 Hz (500 KHz) 
>>
>> FF FF FF FF FF FF 
>> 40 00 00 00 00 95 
>> FF FF FF FF FF FF 
>> FF FF FF FF FF FF 
>> FF FF FF FF FF FF 
>> DE AD BE EF BA AD 
>> F0 0D 
>>
>> root@beaglebone:~# cat /proc/cmdline 
>> console=tty0 console=ttyO0,115200n8 
>> bone_capemgr.enable_partno=BB-SPIDEV1 root=/dev/mmcblk0p1 
>> rootfstype=ext4 rootwait coherent_pool=1M quiet cape_universal=enable 
>> root@beaglebone:~# uname -r 
>> 4.1.18-ti-r55 
>>
>> root@beaglebone:~# dmesg | grep bone 
>> [0.00] Kernel command line: console=tty0 
>> console=ttyO0,115200n8 bone_capemgr.enable_partno=BB-SPIDEV1 
>> root=/dev/mmcblk0p1 rootfstype=ext4 rootwait coherent_pool=1M quiet 
>> cape_universal=enable 
>> [3.426727] bone_capemgr bone_capemgr: Baseboard: 'A335BNLT, 
>> ,BBG115096609' 
>> [3.426755] bone_capemgr bone_capemgr: 
>> compatible-baseboard=ti,beaglebone-black - #slots=4 
>> [3.477193] bone_capemgr bone_capemgr: slot #0: No cape found 
>> [3.537209] bone_capemgr bone_capemgr: slot #1: No cape found 
>> [3.597174] bone_capemgr bone_capemgr: slot #2: No cape found 
>> [3.657179] bone_capemgr bone_capemgr: slot #3: No cape found 
>> [3.662979] bone_capemgr bone_capemgr: enabled_partno PARTNO 
>> 'BB-SPIDEV1' VER 'N/A' PR '0' 
>> [3.662991] bone_capemgr 

[beagleboard] Re: Problem enabling SPI and UARTs (4.5 kernel)

[DLF]

yes - it sounds like the problem...

from William's blog, I'd look at this part
 
$ sudo apt-get install git
$ git clone https://github.com/beagleboard/bb.org-overlays
$ cd bb.org-overlays/
$ ./dtc-overlay.sh
$ sudo ./install.sh

and then check that the overlays in /lib/firmware are current.

BTW, backup any data before following my comments

cheers





On Thursday, 25 February 2016 09:59:58 UTC+1, Thomas Andrews wrote:
>
> I have just upgraded to a 4.5.0-rc4+ kernel that I built, and I'm having 
> trouble getting SPI0 and UARTs 1 & 4 working again. I built the kernel 
> with CONFIG_BONE_CAPEMGR=y
>
> cat /sys/devices/platform/bone_capemgr/slots
> 0: PF -1 
> 1: PF -1 
> 2: PF -1 
> 3: PF -1 
>
> Here is my problem:
> echo 'BB-SPIDEV0' > /sys/devices/platform/bone_capemgr/slots
> -bash: echo: write error: Invalid argument
>
> What am I missing? Is there perhaps some kernel build option that I've 
> missed?
>
> This was an upgrade from 3.8.13-bone47, so I'm somewhat out of date..
>
> Thanks!
> Thomas
>

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[beagleboard] Re: Problem enabling SPI and UARTs (4.5 kernel)

[DLF]

I think you have the wrong (old) DTC version.  It has changed and should be 
something like Version: DTC 1.4.1xxx

On Thursday, 25 February 2016 10:40:28 UTC+1, Thomas Andrews wrote:
>
> Some extra info - I get the messages below in dmesg after executing this -
> echo 'BB-SPIDEV0' > /sys/devices/platform/bone_capemgr/slots
>
> [ 9170.846742] bone_capemgr bone_capemgr: part_number 'BB-SPIDEV0', 
> version 'N/A'
> [ 9170.846781] bone_capemgr bone_capemgr: slot #15: override
> [ 9170.846797] bone_capemgr bone_capemgr: Using override eeprom data at 
> slot 15
> [ 9170.846814] bone_capemgr bone_capemgr: slot #15: 'Override Board 
> Name,00A0,Override Manuf,BB-SPIDEV0'
> [ 9170.847345] __of_adjust_tree_phandle_references: Could not find target 
> property 'fixup' @/__local_fixups__
> [ 9170.857775] bone_capemgr bone_capemgr: slot #15: Failed to resolve tree
>
>

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[beagleboard] Re: Problem enabling SPI and UARTs (4.5 kernel)

[DLF]

Hi 

follow William's blog it provides some insights for the 4.x kernels ... 
very useful
http://www.embeddedhobbyist.com/2015/09/beaglebone-black-updating-device-tree-files/
however.
there are some points I could not figure out with SPIDEV0
https://groups.google.com/forum/#!category-topic/beagleboard/gOynYr8fgns

good luck

On Thursday, 25 February 2016 09:59:58 UTC+1, Thomas Andrews wrote:
>
> I have just upgraded to a 4.5.0-rc4+ kernel that I built, and I'm having 
> trouble getting SPI0 and UARTs 1 & 4 working again. I built the kernel 
> with CONFIG_BONE_CAPEMGR=y
>
> cat /sys/devices/platform/bone_capemgr/slots
> 0: PF -1 
> 1: PF -1 
> 2: PF -1 
> 3: PF -1 
>
> Here is my problem:
> echo 'BB-SPIDEV0' > /sys/devices/platform/bone_capemgr/slots
> -bash: echo: write error: Invalid argument
>
> What am I missing? Is there perhaps some kernel build option that I've 
> missed?
>
> This was an upgrade from 3.8.13-bone47, so I'm somewhat out of date..
>
> Thanks!
> Thomas
>

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[beagleboard] What is special about SPI0 ?

[DLF]

 

Hello,

I was working a DT Overlay for my touchscreen and ran to issues trying to 
load it.

It can successfully load it via 
cape_enable=bone_capemgr.enable_partno=BB-ADS7846 (so I know the overlays 
works)  but I don't get the same results (not working) via the command 
line.  Investigating this further I noticed similar points with the SPI0 
(BB-SPIDEV0-00A0.dts) and discovered it not setting the pin mux via the 
command line as I would expect.  (SPIDEV0 also works via capemgr in 
uEnv.txt)


I'm using the bog-standard BB-SPIDEV0-00A0.dts overlay from 
bb.org-overlays/src/arm. Everything else looks like it is working properly 
in dmesg.


I can move forward using bone_capemgr.enable in uEnv.txt so this is not a 
critical issue but more a point of understanding what is going on (or not, 
as the case may be) and efficiency. I've googled around but could not find 
anything related to the newer 4.x kernels.


Thanks in advance for any clues or assistance.


*Environment:*

root@beaglebone:~# uname -r; cat /etc/dogtag; dtc --version; cat 
/proc/cmdline 

4.4.1-bone5 

BeagleBoard.org Debian Image 2016-01-31 

Version: DTC 1.4.1-g1e75ebc9 

console=tty0 console=ttyO0,115200n8 root=/dev/mmcblk0p1 rootfstype=ext4 
rootwait coherent_pool=1M quiet 


.../boot/uEnv.txt

##BeagleBone Black: HDMI (Audio/Video)/eMMC disabled: 

dtb=am335x-boneblack-overlay.dtb 


results do not vary if I use cape_universal=enable or not . I also 
tried the 4.1.16-ti-rt-r44 kernel

…..noob-ish


*Test*

Following the instructions on William's website for loading an overlay 
UART1 (working as expected)

http://www.embeddedhobbyist.com/2015/09/beaglebone-black-updating-device-tree-files/


*before*

root@beaglebone:~# cat 
/sys/kernel/debug/pinctrl/44e10800.pinmux/pinmux-pins | grep 'pin 96\|pin 
97' 

pin 96 (44e10980.0): (MUX UNCLAIMED) (GPIO UNCLAIMED) 

pin 97 (44e10984.0): (MUX UNCLAIMED) (GPIO UNCLAIMED) 


root@beaglebone:~# cat /sys/kernel/debug/pinctrl/44e10800.pinmux/pins | 
grep 'pin 96\|pin 97' 

pin 96 (44e10980.0) *0037 *pinctrl-single 

pin 97 (44e10984.0) *0037* pinctrl-single 


*load overlay*

root@beaglebone:~# sudo sh -c "echo 'BB-UART1' > 
/sys/devices/platform/bone_capemgr/slots" 

*(ignore the sudo part with root – just a copy & paste point !!!)*


*after*

root@beaglebone:~# cat 
/sys/kernel/debug/pinctrl/44e10800.pinmux/pinmux-pins | grep 'pin 96\|pin 
97' 

pin 96 (44e10980.0): 48022000.serial (GPIO UNCLAIMED) *function 
pinmux_bb_uart1_pins group pinmux_bb_uart1_pins *

pin 97 (44e10984.0): 48022000.serial (GPIO UNCLAIMED) *function 
pinmux_bb_uart1_pins group pinmux_bb_uart1_pins *


root@beaglebone:~# cat /sys/kernel/debug/pinctrl/44e10800.pinmux/pins | 
grep 'pin 96\|pin

pin 96 (44e10980.0) *0028* pinctrl-single 

pin 97 (44e10984.0) *0008* pinctrl-single


root@beaglebone:~# cat /sys/devices/platform/bone_capemgr/slots 

0: PF -1 

1: PF -1 

2: PF -1 

3: PF -1 

4: P-O-L- 0 Override Board Name,00A0,Override Manuf,BB-UART1 97' 


*unload*

sudo sh -c "echo '-4' > /sys/devices/platform/bone_capemgr/slots" 


*same procedure for SPI0*

*before*

root@beaglebone:~# cat 
/sys/kernel/debug/pinctrl/44e10800.pinmux/pinmux-pins | grep 'pin 84\|pin 
85\|pin 86\|pin 87' 

pin 84 (44e10950.0): (MUX UNCLAIMED) (GPIO UNCLAIMED) 

pin 85 (44e10954.0): (MUX UNCLAIMED) (GPIO UNCLAIMED) 

pin 86 (44e10958.0): (MUX UNCLAIMED) (GPIO UNCLAIMED) 

pin 87 (44e1095c.0): (MUX UNCLAIMED) (GPIO UNCLAIMED) 


root@beaglebone:~# cat /sys/kernel/debug/pinctrl/44e10800.pinmux/pins | 
grep 'pin 84\|pin 85\|pin 86\|pin 87' 

pin 84 (44e10950.0) *0037* pinctrl-single 

pin 85 (44e10954.0) *0037* pinctrl-single 

pin 86 (44e10958.0) *0037* pinctrl-single 

pin 87 (44e1095c.0) *0037* pinctrl-single 


*load overlay*

sudo sh -c "echo 'BB-SPIDEV0' > /sys/devices/platform/bone_capemgr/slots"


*after*

root@beaglebone:~# dmesg

[ 3283.995279] bone_capemgr bone_capemgr: part_number 'BB-SPIDEV0', version 
'N/A' 

[ 3283.995309] bone_capemgr bone_capemgr: slot #5: override 

[ 3283.995324] bone_capemgr bone_capemgr: Using override eeprom data at 
slot 5 

[ 3283.995339] bone_capemgr bone_capemgr: slot #5: 'Override Board 
Name,00A0,Override Manuf,BB-SPIDEV0' 

[ 3284.006848] bone_capemgr bone_capemgr: slot #5: dtbo 
'BB-SPIDEV0-00A0.dtbo' loaded; overlay id #0 


root@beaglebone:~# ls /dev/spi*

/dev/spidev1.0 /dev/spidev1.1


root@beaglebone:~# cat 
/sys/kernel/debug/pinctrl/44e10800.pinmux/pinmux-pins | grep 'pin 84\|pin 
85\|pin 86\|pin 87' 

pin 84 (44e10950.0): (MUX UNCLAIMED) (GPIO UNCLAIMED) 

pin 85 (44e10954.0): (MUX UNCLAIMED) (GPIO UNCLAIMED) 

pin 86 (44e10958.0): (MUX UNCLAIMED) (GPIO UNCLAIMED) 

pin 87 (44e1095c.0): (MUX UNCLAIMED) (GPIO UNCLAIMED) 


root@beaglebone:~# cat /sys/kernel/debug/pinctrl/44e10800.pinmux/pins | 
grep 'pin 84\|pin 85\|pin 86\|pin 87' 

pin 84 (44e10950.0) *0037* pinctrl-single 

pin 85 (44e10954.0) *0037* pinctrl-single 

pin 86 

Re: [beagleboard] Re: Cape manager on linux 4.1: can't load bone_eqep2b cape

[DLF]

>
>
>
>
> Good point, we can't do that: 
>
>
> https://github.com/beagleboard/bb.org-overlays/commit/cc5c45529402f5e8cea86b703c6e148cf10c0ffc
>  
>
> use "bone_eqep2b" for the one that doesn't conflict with hdmi.. 
>
> Regards, 
>
> -- 
> Robert Nelson 
> https://rcn-ee.com/ 
>

Hi - is this important ??  not really sure myself, I'm a noob

root@beaglebone:~/bb.org-overlays# grep 'part-number = 
"cape-bone-universal"' src/arm/*.dts
src/arm/cape-univ-emmc-00A0.dts:part-number = "cape-bone-universal";
src/arm/cape-universal-00A0.dts:part-number = "cape-bone-universal";
src/arm/cape-universaln-00A0.dts:part-number = "cape-bone-universal";

uname -a
Linux beaglebone 4.4.1-bone5 #1 Fri Feb 5 21:57:55 UTC 2016 armv7l GNU/Linux



 

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[beagleboard] Re: BBB UART2 loopback test

[DLF]

Hello and thanks for your reply.

as it turns out I had a pin conflict on pin 49.  The following lead me to 
believe that nothing else was loaded and I should be good to go.

root@beaglebone:~# 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,BB-UART2

dmesg showed there was a conflict with the pins and cat 
/sys/kernel/debug/pinctrl/44e10800.pinmux/pingroups showed the conflict 
wiht nxp_hdmi_bonelt_pins

I changed my /boot/uEnv.txt to disable HDMI:
##BeagleBone Black: HDMI (Audio/Video) disabled:
dtb=am335x-boneblack-emmc-overlay.dtb

and it is now working.  thanks again for your support.  

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[beagleboard] BBB UART2 loopback test

[DLF]

 

Hello and happy holidays to everyone,


I’ve been trying to use the UART on my BBB and I’m having some trouble to 
figure out why it is not working.  To test I have a jumper line between 
P9.21<=>P9.22 and using a loopback test.  The first Putty session (cat 
/dev/ttyO2)does not respond with any “output”. I thought this would be 
easier and my google searches indicate this should work.


root@beaglebone:~# uname -r && cat /etc/dogtag
4.1.13-ti-r33

BeagleBoard.org Debian Image 2015-11-12


root@beaglebone:~# 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,BB-UART2


root@beaglebone:~# ls /dev/ttyO*

/dev/ttyO0  /dev/ttyO2


*Terminal 1:*

root@beaglebone:~# cat /dev/ttyO2


*Terminal 2:*

root@beaglebone:~# echo "hi" > /dev/ttyO2

many thanks for any assistance.

Cheers,


(cross-post to: 
https://groups.google.com/forum/#!topic/beaglebone/NT8ZSFTaY-Q by mistake)

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[beagleboard] Re: 1080p/720p USB Cameras

[DLF]

I gave up on USB cameras about a year when I read this

https://e2e.ti.com/support/embedded/linux/f/354/t/332530#pi317016=2

... partially because it was beyond me, but also because it appeared to be 
moving at a glacial speed.   (not being critical - just an observation)

There are other threads in the Google groups about USB cameras on the BBB - 
which are not favorable.

as always ... good luck


On Monday, 7 December 2015 22:15:05 UTC+1, SWiT wrote:
>
> I'm trying to record a USB 1080p 30fps USB webcam but I can't get much 
> over 10fps at 1080p or 720p. The resolution change from 1920x1080 to 
> 1280x720 does not seem to effect the fps at all.
>
> I've tried 2 cameras, a generic winbook 1080p webcam and a very nice 
> Logitech c930e. I am using MJPEG compression. Both work at 30fps in Ubuntu 
> 14.04 with cheese and avconv (libav-tools).
>
> On the BBB I ran top and iotop and they indicated the CPU never got above 
> 10% and the bandwidth writing to disk was <4,000KBps. I got the same low 
> fps when running on the debian 7.5 (2015-03-01) and 7.9 (2015-11-12) 
> releases.  I couldn't get 8.2 (2015-11-12) to boot but I'll rewrite the SD 
> card and try again if someone thinks it might help.
>
>
> The kicker is the Logitech c930e worked at 1080p@30fps on the 
> RaspberryPi2, but the cheap generic camera would only run at 1080p@10fps on 
> the RPi2.
>
>
>
> Should I be building the UVC drivers from the latest source or something 
> like that? Is there a newer Kernel I should be using? Am I hitting some 
> kind of USB bottleneck?
>
>

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[beagleboard] Re: U-Boot Bootloader Concepts

[DLF]

Hi

you might find your answer here.

http://www.raspberrypi.org/forums/viewtopic.php?f=66t=101737

On Wednesday, 25 February 2015 16:40:37 UTC+1, kondaveet...@gmail.com wrote:

 Hi,

 Iam new to U-boot source code.

 Please tell me how to understand the flow of U-Boot bootloader from 
 scratch for Beagle board xm.
 and how to port U-boot bootloader for the beagle board xm and how to test 
 after porting.
 Please tell me some suggestions about my project.






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[beagleboard] Re: About the Device Tree

[dlf]

Nice Work !

- well written, and organized.

worthy of a sticky  or something

On Thursday, 19 February 2015 14:00:13 UTC+1, Nic Cyn wrote:

 I have written a technical note which attempts to provide some insights 
 into the workings of the Device Tree. 

 http://www.OfItselfSo.com/BeagleNotes/AboutTheDeviceTree.pdf

 This document is the one I would have liked to have been able to read when 
 I was trying to figure it all out. Once I thought I had got a reasonable 
 grip on the goings-on in the Device Tree I wrote it all down in the thought 
 that it might clarify things a bit for others.


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[beagleboard] Re: BBB USB Transfer Rate

[DLF]

Hi,

I'm not sure if this is relevant or not ...  maybe Robert or someone with a 
better understand of these things would know  ???

 AM335x SDK6/7 kernel: USB isochronous with DMA patches, known issues

*AMSDK8.0 (3.14 kernel) has been released last week. Can you please check 
if the issue still exists in kernel 3.14?*
http://e2e.ti.com/support/embedded/linux/f/354/p/332530/1423886#1423886

On Monday, 29 December 2014 19:31:28 UTC+1, t.c.pin...@gmail.com wrote:

 Untill now, the maximum transfer rate I could achieve is ~11 MB/s. I've 
 tried this with different kernels with and without DMA enabled.

 Could anyone get more than this? If so, how can I achieve that?

 Thank you!

 TC


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Re: [beagleboard] Re: BBB USB Transfer Rate

[DLF]

Merci Robert and thanks for all your great work - it is appreciated !

I'd say it is not fixed

 root@beaglebone:~# uname -a
 Linux beaglebone 3.14.33-ti-r50 #1 SMP PREEMPT Wed Feb 11 18:16:43 UTC 
 2015 armv7l GNU/Linux


root@beaglebone:~# hdparm -t /dev/sda

 /dev/sda:
  Timing buffered disk reads:  28 MB in  3.16 seconds =   8.87 MB/sec


based on the release notes and known issues - there are still open points
http://processors.wiki.ti.com/index.php/Sitara_Linux_SDK_Kernel_Release_Notes



On Monday, 16 February 2015 22:56:05 UTC+1, RobertCNelson wrote:

 On Mon, Feb 16, 2015 at 1:48 PM, DLF dumb.lo...@gmail.com javascript: 
 wrote: 
  Hi, 
  
  I'm not sure if this is relevant or not ...  maybe Robert or someone 
 with a 
  better understand of these things would know  ??? 
  
  AM335x SDK6/7 kernel: USB isochronous with DMA patches, known issues 
  
  AMSDK8.0 (3.14 kernel) has been released last week. Can you please check 
 if 
  the issue still exists in kernel 3.14? 
  
  http://e2e.ti.com/support/embedded/linux/f/354/p/332530/1423886#1423886 

 our 3.14.x-ti kernel is based on  

 You can test via: 

 sudo apt-get update ; sudo apt-get install linux-image-3.14.33-ti-r50 
 ; sudo reboot 

 Regards, 

 -- 
 Robert Nelson 
 http://www.rcn-ee.com/ 


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Re: [beagleboard] Re: BBB USB Transfer Rate

[DLF]

fair point  I should have the same drive on my desktop with

 /dev/sdb:
  Timing buffered disk reads:  68 MB in  3.08 seconds =  22.09 MB/sec





On Tuesday, 17 February 2015 03:22:15 UTC+1, RobertCNelson wrote:

 On Mon, Feb 16, 2015 at 8:14 PM, DLF dumb.lo...@gmail.com javascript: 
 wrote: 
  Merci Robert and thanks for all your great work - it is appreciated ! 
   
  I'd say it is not fixed 
  
  root@beaglebone:~# uname -a 
  Linux beaglebone 3.14.33-ti-r50 #1 SMP PREEMPT Wed Feb 11 18:16:43 UTC 
  2015 armv7l GNU/Linux 
  
  
  root@beaglebone:~# hdparm -t /dev/sda 
  
  /dev/sda: 
   Timing buffered disk reads:  28 MB in  3.16 seconds =   8.87 MB/sec 

 So you have a crappy usb-flash drive...  How do we know that's the usb 
 bus speed and not just a slow drive. ;) 

  based on the release notes and known issues - there are still open 
 points 
  
 http://processors.wiki.ti.com/index.php/Sitara_Linux_SDK_Kernel_Release_Notes 

 There will always be open points... 

 Regards, 

 -- 
 Robert Nelson 
 http://www.rcn-ee.com/ 


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[beagleboard] Re: Cannot flash latest Debian image to eMMC

[DLF]

sorry to hear about your trouble.  I'm not using Win32DiskManager so I 
can't say what else could be the issue

things to check = maybe you did this already?

   - checksum on the download?
   - is Win32diskmanager ok?  can you use linux and the dd command ?
   - is the SD card good/formated properly before copying the image
   - good connection around sd card/holder
   
...
it should work  !  crazy !!
 

On Friday, 30 January 2015 16:23:09 UTC+1, Blake Hollingsworth wrote:

 Thanks for the input!  I tried many, many, many times without the serial 
 debug cable.  In fact, I only resorted to buying the serial debug cable to 
 assist my endeavor before resorting to asking the community.  I saw many 
 similar posts where people were asked to plug in a serial debug cable... I 
 thought it might help.  

 If I try without the debug cable, the lights will flash for hours  (i let 
 it go for 2 hours).  But when I plug in the HDMI cable, and it's just 
 sitting in the regular angstrom ui (forgive me I don't know the name off 
 the top of my head).

 I WAS able to flash the latest Angstrom initially with no issues.  So I 
 think I have the process down, it's just something to do with the 
 combination of my board + the debian image.

 Anyway, thanks for the input.

 On Thursday, January 29, 2015 at 11:47:41 PM UTC-5, DLF wrote:

 Hello,

 The normal sequence is (S2 button not pushed):

- MC1 (eMMC on-board flash), MMC0 (SD card), UART0, USB0

 S2 button pushed:

-  SPI0, MMC0 (SD card), USB0, UART0

 so ...  try flashing without the serial debug cable

 good luck

 On Thursday, 29 January 2015 19:05:36 UTC+1, Blake Hollingsworth wrote:

 Just some additional clarification.  I unzipped the archive before 
 writing the image to the SD card.  I let go of S2 (not S3) after all 4 
 lights lit up.

 If more information/clarification is required, please don't hesitate to 
 let me know.  I am anxious to get this thing flashed and willing to work 
 with anyone that wants to help.

 On Tuesday, January 27, 2015 at 4:57:26 PM UTC-5, Blake Hollingsworth 
 wrote:

 I have a REV A5A Beaglebone Black.  

 I downloaded the image Debian (BeagleBone Black - 2GB eMMC) 2014-05-14 
 http://debian.beagleboard.org/images/BBB-eMMC-flasher-debian-7.5-2014-05-14-2gb.img.xz
   
 (
 http://debian.beagleboard.org/images/BBB-eMMC-flasher-debian-7.5-2014-05-14-2gb.img.xz)
  
 listed on http://beagleboard.org/latest-images.

 Using Win32DiskImager I wrote the image to a 16GB microSD card.  I 
 inserted the card into the BBB, attached the serial debug cable (all other 
 cables removed).  Press S2 and hold down, apply power, let go of S3 after 
 all 4 lights have lit up and things start flashing.

 I have tried several times, leaving the board for 30 mins to well over 
 1 hour.  Lights continuously blink in a repeating pattern.  I typically 
 get 
 frustrated and pull power, and restart.  Angstrom remains on the board. 

 The serial debug output I received is here: 
 http://pastebin.com/AS0T8Xrt

 Any help would be greatly appreciated!

 -Blake



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[beagleboard] Re: Cloning Beaglebone eMMC

[DLF]

I guess if you are making a copy of the eMMC you have booted to the SD card 
and therefore eMMC should be mmcblk1 (or you have mmcblk0 in ro).
?

On Thursday, 29 January 2015 09:16:14 UTC+1, DLF wrote:

 Hello

 it works for me but you need to be careful about source and targets

 from the BBB (source)
 dd if=/dev/mmcblk0 bs=1M | ssh root@targetip 'dd 
 of=/target/directory/bbb.img bs=1M'

 maybe try again ?

 good luck

 On Wednesday, 28 January 2015 11:15:45 UTC+1, Rimvydas Janušauskas wrote:

 Hello, 

 I'm trying to clone my beaglebone using : sudo dd if=/dev/mmcblk0 bs=1M | 
 ssh machi...@192.168.7.2 'dd of=/home/rimvis/Desktop/bbb.img bs=1M'
 but everytime i get error ; dd: opening `/home/rimvis/Desktop/bbb.img': 
 No such file or directory. Any ideas how to solve it  ? 



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[beagleboard] Re: Beaglebone Video Webcam HP HD3200

[DLF]

Hello,

This is not really a BBB issue so you might not find the support you need.

from what I can tell you only have a warning and it can be ignored.

you are have the output set to a file out.avi.  Does it exist?

maybe check the ffmpeg site for help. 

I use mplayer instead  so if you want you could try ...

sudo apt-get update
sudo apt-get install mplayer
sudo apt-get install v4l-utils
mplayer tv:// -tv 
driver=v4l2:width=960:height=720:device=/dev/video0:outfmt=MJPG

reference = here 
https://www.blogger.com/blogger.g?blogID=4064111232456282252#editor/target=post;postID=3975722784958133717;onPublishedMenu=allposts;onClosedMenu=allposts;postNum=24;src=link

good luck


On Monday, 26 January 2015 19:59:55 UTC+1, Felipe ordoñez wrote:


 Hi everybody, 

 I am new with beaglebone and I am trying to connect a webcam to do image 
 processing. 
  I do all the steps of the Derek malloy's website(
 http://derekmolloy.ie/building-ffmpeg-for-beaglebone-from-source/#comment-29934)
  
  

 there is not something wrong in the process. 

 But when I finished all the process I type: 
 root@beaglebone:~# ffmpeg -f video4linux2 -i /dev/video0 out.avi

 and appears:

 WARNING: gnome-keyring:: couldn't connect to: 
 /run/user/daniel/keyring-37jbja/pkcs11: No such file or directory
 ffmpeg version 0.8.16-6:0.8.16-1, Copyright (c) 2000-2014 the Libav 
 developers
   built on Sep 17 2014 13:57:48 with gcc 4.6.3
 The ffmpeg program is only provided for script compatibility and will be 
 removed
 in a future release. It has been deprecated in the Libav project to allow 
 for
 incompatible command line syntax improvements in its replacement called 
 avconv
 (see Changelog for details). Please use avconv instead.

 .so I can`t access or see the webcam.what can I fixed??  I also try 
 with a genius webcam, but it shows the same message .

 I appreciate your support.   (what procedure I have to do to see the image 
 of the webcam on a Beaglebone Black?)

 thanks.


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[beagleboard] Re: Cloning Beaglebone eMMC

[DLF]

Hello

it works for me but you need to be careful about source and targets

from the BBB (source)
dd if=/dev/mmcblk0 bs=1M | ssh root@targetip 'dd 
of=/target/directory/bbb.img bs=1M'

maybe try again ?

good luck

On Wednesday, 28 January 2015 11:15:45 UTC+1, Rimvydas Janušauskas wrote:

 Hello, 

 I'm trying to clone my beaglebone using : sudo dd if=/dev/mmcblk0 bs=1M | 
 ssh machi...@192.168.7.2 javascript: 'dd 
 of=/home/rimvis/Desktop/bbb.img bs=1M'
 but everytime i get error ; dd: opening `/home/rimvis/Desktop/bbb.img': No 
 such file or directory. Any ideas how to solve it  ? 



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[beagleboard] Re: Cannot flash latest Debian image to eMMC

[DLF]

Hello,

The normal sequence is (S2 button not pushed):

   - MC1 (eMMC on-board flash), MMC0 (SD card), UART0, USB0

S2 button pushed:

   -  SPI0, MMC0 (SD card), USB0, UART0

so ...  try flashing without the serial debug cable

good luck

On Thursday, 29 January 2015 19:05:36 UTC+1, Blake Hollingsworth wrote:

 Just some additional clarification.  I unzipped the archive before writing 
 the image to the SD card.  I let go of S2 (not S3) after all 4 lights lit 
 up.

 If more information/clarification is required, please don't hesitate to 
 let me know.  I am anxious to get this thing flashed and willing to work 
 with anyone that wants to help.

 On Tuesday, January 27, 2015 at 4:57:26 PM UTC-5, Blake Hollingsworth 
 wrote:

 I have a REV A5A Beaglebone Black.  

 I downloaded the image Debian (BeagleBone Black - 2GB eMMC) 2014-05-14 
 http://debian.beagleboard.org/images/BBB-eMMC-flasher-debian-7.5-2014-05-14-2gb.img.xz
   
 (
 http://debian.beagleboard.org/images/BBB-eMMC-flasher-debian-7.5-2014-05-14-2gb.img.xz)
  
 listed on http://beagleboard.org/latest-images.

 Using Win32DiskImager I wrote the image to a 16GB microSD card.  I 
 inserted the card into the BBB, attached the serial debug cable (all other 
 cables removed).  Press S2 and hold down, apply power, let go of S3 after 
 all 4 lights have lit up and things start flashing.

 I have tried several times, leaving the board for 30 mins to well over 1 
 hour.  Lights continuously blink in a repeating pattern.  I typically get 
 frustrated and pull power, and restart.  Angstrom remains on the board. 

 The serial debug output I received is here: http://pastebin.com/AS0T8Xrt

 Any help would be greatly appreciated!

 -Blake



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[beagleboard] Re: absence of bone_capemgr.9. how to configure slots ??

[DLF]

As I understand it, it is not available and you must downgrade to 3.8

On Tuesday, 27 January 2015 07:05:54 UTC+1, prashuk jain wrote:



 I am running presently  3.18.1-armv7-x2 kernel version on my beagle bone 
 black.
 I want to make changes to pins and slots present in this file like for 
 enabling I2C-0.


 I am unable to locate bone_capemgr.9 file in /sys/devices/bone*.*
 How can i do it in the absence of any such file.

 Please Guide.

 Thanks 


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Re: [beagleboard] How to install Python 3.x on my Rev 'C' (running Debian) BBB?

[DLF]

Hi,

when I see an error like that, I always *make sure my date  time are set 
properly* and then run

apt-get update
apt-get install *package-name*

I'm not at my BBB to test, so I'm not sure if this would fix your problem 
or not

On Monday, 26 January 2015 10:13:42 UTC+1, Elena Grandi wrote:

 On 2015-01-25 at 22:34:37 -0800, COG wrote: 
  I would like to install Python 3.x (*preferably version 3.4*) on my BBB 
  that is running the Debian OS.  Can anyone help? 
  
  I tried #apt-get install python33 
  But got this error: 
  E: Unable to locate package python33 

 did you try: 

 # apt-get install python3 

 (I admit that searching for it with apt-cache is not really useful, but 
 https://www.debian.org/distrib/packages could help) 

 -- 
 Elena ``of Valhalla'' 


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[beagleboard] Re: power button won't shutdown debian kernel linux-image-3.14.29-ti-r46

[DLF]

Hi, I'm running the same kernel and the power button shuts down the BBB.   
I have to hold it for about 5 seconds, but it does work

On Saturday, 24 January 2015 17:32:26 UTC+1, toni incog wrote:

 When pressing the power button on a bbb with debian kernel 
 linux-image-3.14.29-ti-r46 nothing happens. When using 3.8.13-bone70 the 
 system powers down. Looking for clues I'm missing /dev/input/event0 on the 
 ti kernel. Any pointers on how to solve this?

 thx,
 Michiel


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Re: [beagleboard] How do I install Arduino 1.6 in the BeagleBone Black?

[DLF]

working instructions to compile or just grab the .deb files

http://dumb-looks-free.blogspot.fr/2015/01/compile-arduino-ide-16-on-beaglebone.html

cheers

On Tuesday, 13 January 2015 05:19:20 UTC+1, William Hermans wrote:

 In that case, I think the last hurdle will be getting 1.5.x binaries 
 working.

 On Mon, Jan 12, 2015 at 8:29 PM, Bill Traynor btra...@gmail.com 
 javascript: wrote:

 On Mon, Jan 12, 2015 at 10:21 PM, William Hermans yyr...@gmail.com 
 javascript: wrote:
  Bill, He has already said twice in posts, that version 1.0.1 of the IDE 
 is
  not new enough to support his board. That tutorial shows howto install 
 the
  ardiono IDE shipped with Debian. Which is v1.0.1

 Ah, I see.  Well in that case, there's these instructions:

 http://playground.arduino.cc/Linux/All


 
  On Mon, Jan 12, 2015 at 8:08 PM, Bill Traynor btra...@gmail.com 
 javascript: wrote:
 
  On Thu, Jan 8, 2015 at 12:24 PM, Jack_RobotDad ja...@silbermans.net 
 javascript:
  wrote:
   Hello,
  
   I am working on a small robot project with my son. I need to install 
 the
   Arduino IDE 1.6 (e.g., nightly build Linux 32) into my BBB.
   The Arduino IDE from the repository installed easy using application
   management, but it does not support the Arudino Due boards as is.
  
   I have basically downloaded the lasted files from the Arduino site 
 and
   followed the instructions from here to create a link on the BBB 
 desktop
  
   
 https://bhargavg.wordpress.com/2011/12/23/creating-an-arduino-desktop-launcher-for-ubuntu-11-10-with-desktop-file/
  
   I have done the install and it is working on regular Linux PCs 
 running
   Ubuntu and Linux Mint, but I can't make it work on the BBB for some
   reason.
   On the BBB when I click over the icon I created to execute the 
 arduino
   code,
   nothing happens.
  
   I am getting the Arduino IDE Nighly Builds Linux 32 from here
   http://arduino.cc/en/Main/Software#toc4
  
   Do I have to compile the  Arduino source code for the BBB? If so, I 
 need
   help doing it.
   As I mentioned, on the other Linux installs we have (regular PCs) I 
 just
   needed to download the files and create the link to run the Arduino 
 IDE.
  
   Any help will be appreciated.
 
  Could this help?
 
  
 http://inspire.logicsupply.com/2014/09/beaglebone-runs-arduino-ide.html
 
  
   Thank you!
   -Jack
  
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Re: [beagleboard] questions about BBB SD cards and formatting

[DLF]

the files are in the 1Mb hole in the front of the SD card, dd it is not 
touching the bootrom  (if I understand your question )

On Friday, 23 January 2015 17:55:49 UTC+1, Robert P. J. Day wrote:

 On Fri, 23 Jan 2015, Robert Nelson wrote: 

  On Fri, Jan 23, 2015 at 10:42 AM, Robert P. J. Day 
  rpj...@crashcourse.ca javascript: wrote: 
   On Fri, 23 Jan 2015, Robert Nelson wrote: 
   
   On Fri, Jan 23, 2015 at 10:28 AM, Robert P. J. Day 
   rpj...@crashcourse.ca javascript: wrote: 

  been a while since i had to format an SD card from scratch for my 
BBB and, reading RCN's instructions over at eewiki.net, i have a 
couple questions. 

  reading here: 


 https://eewiki.net/display/linuxonarm/BeagleBone+Black#BeagleBoneBlack-SetupmicroSD/SDcard
  

and first question is, why is there no need to create and format a 
VFAT partition? from memory, i would always create a small, initial 
VFAT partition and put MLO and uboot there, and format the rest of 
 the 
SD card as ext? for the rootfs. 

  but the instructions on that page don't create an initial VFAT 
partition, they just raw copy MLO and u-boot.img to exact addresses 
 on 
the freshly-zeroed SD card. i had no idea you could do this. or am 
 i 
misreading something? 
   
   It's a feature of the omap4+ bootrom. (omap35/36xx can't do it).  We 
   had users deleting MLO/u-boot.img in that fat partition so we started 
   looking for a way to better protect that. 
   
   Ps.. the bootloader does a lot more internally now too, so we can 
 have 
   simplified /boot/uEnv.txt script... 
   
 which rev of the BBB does that relate to? i'm still using rev B. 
  
  Any image after August 2014 (cat /etc/dogtag) 
  
  Defaults to a boot loader that does: 
  /boot/uEnv.txt  /boot/vmlinuz-${uname -r} 
  
  Either September or October 2014, we switched to MLO/u-boot.img being 
 dd*'ed... 

   sorry, i phrased that question badly. obviously, i can always 
 upgrade u-boot on my rev B, but i assume there was a point in the 
 recent past where the onboard bootrom could handle the dd'ed 
 MLO/u-boot.img, and that's *not* something i could update. 

   given that my BBBs were purchased a while back, i suspect i don't 
 have that feature in the bootrom. eh, time to pick up some rev Cs. 

 rday 

 -- 

  
 Robert P. J. Day Ottawa, Ontario, CANADA 
 http://crashcourse.ca 

 Twitter:   http://twitter.com/rpjday 
 LinkedIn:   http://ca.linkedin.com/in/rpjday 
  


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[beagleboard] Re: Wierd Power Problem

[DLF]

Hello

I assume you are using the barrel connector.  Could you use the USB 
connector to provide power?  I find a different result on my BBB if I use 
the USB vs the barrel.

or perhaps I don't fully understand your issues ???


cheers

On Friday, 23 January 2015 00:16:08 UTC+1, William Pretty Security wrote:

 Hello List:

  

 I have a problem that I didn’t anticipate.

 I have an embedded system with battery backup.

 Actually it runs off of the battery  and external supply keeps the battery 
 charged.

  

 Here is my problem:

  

 I can use the power button/signal to power the unit down, but how do I get 
 it to power up again?

 The unit doesn’t have an On/Off switch, so I can’t simply cycle the power 
 ….

  

 Any ideas ??

  

 Bill

  

 No one could make a greater mistake than he who did nothing because he 
 could do only a little.

 All that is necessary for the triumph of evil is that good men do 
 nothing Edmond Burke *(1729 - 1797)*


 http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book

 http://ca.linkedin.com/pub/bill-pretty/2b/b07/602

  

  


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[beagleboard] Re: USB camera interfacing with BBB rev C

[dlf]

hello,

what is the output of lsusb and dmesg ?
are you sure the cam is a C720p as I don't find any reference to this 
webcam on the logitech support site?
have you tried the cam on another linux box ? 

cheers,

On Sunday, 4 January 2015 17:04:58 UTC+1, SidK wrote:

 Hello

 I am trying to interface Logitech C720p with BBB rev C with debian. 
 Followed as instructed here 
 http://dumb-looks-free.blogspot.fr/2014/05/beaglebone-black-bbb-with-logitech-c270.html.
  
 I installed usb-modeswitch-data package too with 

 sudo apt-get install usb-modeswitch-data

 but camera BBB doesn't show camera in /dev when i run 
 ls /dev/video*

 Here is the uname -a output

 debian@beaglebone:~$ uname -a
 Linux beaglebone 3.8.13-bone50 #1 SMP Tue May 13 13:24:52 UTC 2014 armv7l 
 GNU/Linux

 Please help me making it work. Thanks in advance.



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Re: [beagleboard] USB Camera on BBB (Debian GNU/Linux 7)

[DLF]

Hello

I've tested my camera and it works with 
root@beaglebone:/home/debian# uname -a
Linux beaglebone 3.14.17-ti-r15 #1 SMP Wed Aug 27 04:19:29 UTC 2014 armv7l 
GNU/Linux

sudo apt-get update
sudo apt-get install mplayer

plug camera into USB hub and reboot

root@beaglebone:/home/debian# lsusb
Bus 002 Device 002: ID 050d:0231 Belkin Components 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 003: ID 04f2:0402 Chicony Electronics Co., Ltd Genius 
LuxeMate i200 Keyboard
Bus 002 Device 004: ID 046d:c058 Logitech, Inc. M115 Mouse
Bus 002 Device 007: ID 046d:0825 Logitech, Inc. Webcam C270

root@beaglebone:/home/debian# ls /dev/video*
/dev/video0
open a LXTerminal on the desktop
mplayer tv:// -tv 
driver=v4l2:width=960:height=720:device=/dev/video0:outfmt=MJPG

should work, .. or at least it works for me.  

good luck

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Re: [beagleboard] USB Camera on BBB (Debian GNU/Linux 7)

[DLF]

running the same kernel  camera I got it workingmy notes are here, ... 
you may find some hints

http://dumb-looks-free.blogspot.fr/2014/05/beaglebone-black-bbb-with-logitech-c270.html

On Tuesday, 21 October 2014 09:49:16 UTC+2, sid...@gmail.com wrote:

 Hello all,
 same issue with me. i can not find /dev/video0 
 i am using Debian  on beaglebone black rev C

 debian@beaglebone:~$ uname -a
 Linux beaglebone 3.8.13-bone50 #1 SMP Tue May 13 13:24:52 UTC 2014 armv7l 
 GNU/Linux


 debian@beaglebone:~$ lsusb
 Bus 001 Device 003: ID 413c:1004 Dell Computer Corp. 
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 004: ID 413c:2006 Dell Computer Corp. 
 Bus 001 Device 007: ID 046d:0825 Logitech, Inc. Webcam C270
 Bus 001 Device 006: ID 15d9:0a4f Trust International B.V. 


 debian@beaglebone:~$ lsmod | grep video
 uvcvideo   57013  0 
 videobuf2_vmalloc   2490  1 uvcvideo

 debian@beaglebone:~$ sudo modprobe uvcvideo

 doesn't show any output.
 any suggestion?


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Re: [beagleboard] Re: Beaglebone Black Rebooting Several Times Every Day

[DLF]

Hello,

I'm kind of a noob but willing to help investigate if needed.  

I once had random reboots and traced it to an overheating problem.  I don't 
know if log files trap overheating messages or not.  I had a blocked vent 
and once it was cleared, no probem.

On a second point, my BBB is stable running 3.14.17-ti-r15.  If you make an 
image send it to me, I could load it on my side and see if it crashes or 
not.  If it crashes, it sounds like software.  If it does not crash, it 
could be hardware (QA?) or environment related (EM?). - As I said, I am a 
noob, so perhaps this could be a waste of your time.

cheers,





On Tuesday, 14 October 2014 08:02:22 UTC+2, Thomas O wrote:

 We still have the same issues with reboots as well. we have had to move 
 our project to bbw for now instead. the bbw with the same kernel and no 
 reboots for two weeks. The BBB reboots on an average og 1-2 times per 24 
 hours independent of load.

 No serial messages. No kernel messages, no oops. We have also tried a 
 kernel wo watchdog support with no avail...

 Any suggestions is highly appreciated at this point..

 --Skjortan!

 On Mon, Oct 13, 2014 at 8:37 PM, Greg Kelley suekk...@gmail.com 
 javascript: wrote:

 Mine is still resetting one to three times a day. I have moved both 
 processes I was running on it (CUPS and weewx) over to my RasPi so it is 
 just sitting idle except for CRON jobs. No events in serial debug logs, 
 just a sudden reset and cold boot restart.

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[beagleboard] Re: Can't set static IP

[DLF]

Hi
just a thought but try a lower IP address...

I know on my modem/router it comes with a configured range valid between 0 
to 50.  I'm not sure why it does that.



On Saturday, 27 September 2014 11:14:19 UTC+2, Pascal De Oliveira wrote:

 Hello,
 I have a BBBK Rev B with Debian 7.6 booting from a SD card. I'm trying to 
 set up a static IP.
 I have added the following lines in the /etc/network/interfaces file :

 auto eth0
  iface eth0 inet static
 address 192.168.1.99
 netmask 255.255.255.0
 network 192.168.0.0
 gateway 192.168.1.1
 broadcast 192.168.1.255


 This has no effect and it still use DHCP.
 What is wrong ?

 Thanks in adavance for any help.
 Pascal



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[beagleboard] Re: Beaglenes doesnot boot

[DLF]

Hello

I think you'll need to provide more information if you are looking for help 
here.  

What are the symptoms and what have you tried? 

On Saturday, 27 September 2014 15:33:21 UTC+2, marcus silva wrote:

 Hi. My beaglebone black does not work. It just doesnot boot. Any one have 
 the same issue?
 BBB i think os rev b and beaglenes .06.


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[beagleboard] Re: how to change screen resolution

[DLF]

any hints in your log files ?

what does /var/log/Xorg.0.log  indicate?
do you know if your monitor supports that resolution ?
can you get that resolution with out booting to the X-11 gui?
what is your uEnv.txt file?


On Thursday, 25 September 2014 01:36:18 UTC+2, janszyma...@gmail.com wrote:

 Hi,

  How to change the screen resolution on BBB with latest image and HDMI 
 monitor connected?
 Currently working with 1920x1080 by default, but I need a lower resolution 
 - 640x480@75.

 Jan


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[beagleboard] Re: Allowable current through BBB's P9_5 and P9_6?

[DLF]

Hello,
Section 8.5.1 in the SRM has a good table that should give you what you 
need.

Main Board Power 
Table 14
describes the voltages from the main board that are available on the 
expansion connectors and their ratings. All voltages are supplied by 
connector 
http://www.farnell.com/datasheets/1685587.pdf


On Monday, 9 June 2014 17:40:36 UTC+2, cove...@gmail.com wrote:

 Hi all,

 Could someone knowledgable tell me how much current can be supplied to the 
 BBB through its P9_5 and P9_6 pins (VDD_5V)?

 Many thanks,

 Anthony Webber



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[beagleboard] Re: BBB rev C kernel module build

[DLF]

I replied to your other post

On Monday, 9 June 2014 18:56:59 UTC+2, ec1...@gmail.com wrote:

 Hi,

 Has anyone figured out how to do a Hello World kernel module build with 
 the Debian?  When I try, I get can't find .../build no directory.



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Re: [beagleboard] Apply a patch to 3.8.13-bone47 and recompile kernel

[DLF]

Hello

I am a beginner and I was able to follow this page for Cross Compile.   
Becareful if you are using Firefox because not all the text is rendered.

http://eewiki.net/display/linuxonarm/BeagleBone+Black

I made a copy with all the text if that helps
http://dumb-looks-free.blogspot.fr/2014/05/beaglebone-black-bbb-cross-compile_28.html

good luck



On Wednesday, 4 June 2014 14:55:32 UTC+2, Tristan Phillips wrote:

 Thank you very much for all your help.  I'll crack on with that and come 
 back if I have more questions if thats OK?

 Thanks again,

 Tris

 On Wednesday, 4 June 2014 13:54:47 UTC+1, Mickae1 wrote:

 yes on a linux pc.

 ( it will kill you to compile the kernel on the bbb . it already 
 takes time on the PC  )


 look at this command provided by Robert Nelson = 
 ./tools/install_kernel.sh ( something like that ).


 Micka,


 On Wed, Jun 4, 2014 at 2:50 PM, Tristan Phillips tris.p...@gmail.com 
 wrote:

 Thank you very much :)  

 I guess I need to do this on a linux pc, not the BBB?

 What do I do after doing all that to flash the new kernel onto a BBB?


 On Wednesday, 4 June 2014 13:28:51 UTC+1, Mickae1 wrote:

 With this command :

 git checkout origin/am33x-v3.8 -b tmp

 you will get the last kernel version of the branch 3.8 , which is 
 today; beaglebone 3.8.13-bone55

 Micka,


 On Wed, Jun 4, 2014 at 2:23 PM, Tristan Phillips tris.p...@gmail.com 
 wrote:

 Is this specific to 3.8.13-bone47 and the beagle bone black?


 On Wednesday, 4 June 2014 13:09:57 UTC+1, Mickae1 wrote:

 There =

 git clone https://github.com/RobertCNelson/bb-kernel.git
 cd bb-kernel/
 git checkout origin/am33x-v3.8 -b tmp
 ./build_kernel.sh

 edit the files that you want
 then =

 tools/rebuild.sh


 Micka,


 On Wed, Jun 4, 2014 at 1:35 PM, Tristan Phillips tris.p...@gmail.com
  wrote:

 Hi,

 I'm running Robert Nelson's Linux arm 3.8.13-bone47 on a beagle 
 bone black and would like to apply a patch to 
 /sound/soc/davinci/davinci-evm.c.  I guess I need to recompile the 
 kernel.  Can someone tell me what I need to download from where and the 
 steps I should follow to achieve this?

 Robert, are you out there? ;)

 Thanks,

 Tris
  
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[beagleboard] Re: Unable to access PWM from userspace on BBB

[DLF]

Hello,

I'm not really an expert, but the information I've picked up from reading 
various post is that not all kernels have full PWM support.  Are you on 
Ubuntu?

If your are missing period and duty then it is possible the Kernel was 
compiled without the flag CONFIG_EHRPWM_TEST.

I'm not sure about the fix, but I think you might need to recompile and 
uncomment the CONFIG_EHRPWM_TEST defconfig.

there are some clues in the posts above.

good luck,

On Saturday, 31 May 2014 05:27:51 UTC+2, JaeEun Choi wrote:

 i have problem of to find period folder



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Re: [beagleboard] Re: Applying voltage to I/O pins when unpowered

[DLF]

Hello Gerald

Is the serial debug header included in the scope of the expansion 
headers?  

The reason I ask is that last week I was mucking about with my serial debug 
cable and I was wondering if I follow the SRM, how can I capture the 
debug/bootup info via putty/serial connection if the BBB isn't connected 
(via usb to my computer) before the BBB is powered up?

Once again many thanks for all your efforts here.  I do enjoy learning* 
with my BBB

DLF

* last night I burt my finger because my temperture sensor was plugged in 
backwards   what a great learning experinece ;)

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[beagleboard] Re: in angstrom set time zone to IST

[DLF]

I think this was covered in another post
https://groups.google.com/forum/#!searchin/beagleboard/atlnatic/beagleboard/xp_OXltR1KM/DYI2xSw4jgMJ

try 
opkg update
opkg install tzdata-asia



On Wednesday, 21 May 2014 14:24:25 UTC+2, neckTwi wrote:

 In /usr/share/zoneinfo there is no file regarding Indian Standard Time. 
 How can set my time zone to IST?? Or else how to set time zone to UTC+5:30.


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Re: [beagleboard] Re: Atlantic Canada Timezone

[DLF]

Hi, 
Me Again ,

do you see /usr/share/zoneinfo/America/Halifax  ???



On Monday, 12 May 2014 17:29:04 UTC+2, DLF wrote:

 yes there is a shift to Debian and I believe the new boards are being 
 shipped with Debian rather than Angstrom.

 I'm not sure what that means in terms of your book, but given that you are 
 new to BBB, I'd continue to work on the examples with Angstrom and the 
 book.  Once you get a footing, jump over to Debian.

 I'm no expert but maybe a package is missing in Angstrom for the Atlantic 
 time zone ... maybe try something like (use at your own risk)
 sudo opkg update
 sudo opkg install tzdata-canada

 good luck




 On 12 May 2014 15:00, mike rankin 0mik...@gmail.com wrote:

 I'm using Angstrom and Canada is not located anywhere in 
 usr/share/zoneinfo
 On another note,
 The BBB is new to me and I'm a nube going through the Getting Started 
 with the BeagleBone Black book examples. If I were to install Debian onto 
 it, can I still follow the book examples? I get the feeling that Debian is 
 preferred for some reason over Angstrom.

 On Monday, May 12, 2014 2:17:44 AM UTC-3, DLF wrote:

 In Debian, I find it inside 
 usr/share/zoneinfo/Canada/



 On Sunday, 11 May 2014 00:53:46 UTC+2, mike rankin wrote:

 I'm having trouble finding the Atlantic Canada Timezone for setting up 
 the time being pulled over ethernet from the instructions at: 
 http://www.circuidipity.com/getting-started-with-beaglebone-black.html
 Inside usr/share/zoneinfo/ I cannot find the Atlantic timezone.

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[beagleboard] Re: Atlantic Canada Timezone

[DLF]

In Debian, I find it inside 
usr/share/zoneinfo/Canada/



On Sunday, 11 May 2014 00:53:46 UTC+2, mike rankin wrote:

 I'm having trouble finding the Atlantic Canada Timezone for setting up the 
 time being pulled over ethernet from the instructions at: 
 http://www.circuidipity.com/getting-started-with-beaglebone-black.html
 Inside usr/share/zoneinfo/ I cannot find the Atlantic timezone.


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[beagleboard] Re: VIdeo is not enabled with latest Angtrom build running from microSD card in BeagleBone Black

[DLF]

Hello

it sounds like you have a similar problem to what I had experienced.   

There is a thread in google groups somewhere (can't find it) about this 
issue but I wrote it up here 
linkhttp://dumb-looks-free.blogspot.fr/2014/04/bbb-hdmi-debias well
My specfic situation was for debian, but some others have indicated it 
works for angstrom too.

maybe have a look at this to see if it can give you some clues.

good luck



On Tuesday, 6 May 2014 15:04:26 UTC+2, alexander.r...@gmail.com wrote:

 Hi:

 I've tried these two latest images on a 8Gb microSD card:

 Angstrom-Cloud9-IDE-GNOME-eglibc-ipk-v2012.12-beaglebone-2013.06.20.img

 Angstrom-Cloud9-IDE-GNOME-eglibc-ipk-v2012.12-beaglebone-2013.09.05.img

 In both cases, the board boots, and it shows the beaglebone logo image for 
 a few seconds and a login ASCII screen, but then, the HDIM video is off.

 I can access the board via Serial cable (FTDI), but is seems the HDMI 
 video is disabled. 

 When booting from the eMMC with the original build from manufacturing, the 
 video works fine on that same board, so there is no HDMI cable, power 
 issues.

 Any idea how to enable the HDMI video when using the latest Angtrom build 
 booting from microSD card

 Thanks,



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Re: [beagleboard] power up using +5 volt jack

[DLF]

Sounds like the explanation to me.   - thanks for that.

  I don't have the skills to rework the board so I'll just put up with 
it.  Not a huge issue for me.

cheers,



On Friday, 2 May 2014 21:11:44 UTC+2, Brandon I wrote:

 The beaglebone had a power up issue. Rev A6A fixed it:

 From the wikihttp://www.elinux.org/Beagleboard:BeagleBoneBlack#Revision_A6A
 :  Changed C24 to a 2.2uF capacitor. This extends the reset signal to 
 solve an issue where some boards would not boot on power up.

 I have around 40 beaglebones running and this was a pretty serious problem 
 for us. Our users guides have a somewhat embarrassing If the board 
 doesn't boot, unplug the power and wait 10 seconds. I have around 20 Rev. 
 B boards, and I haven't seen one fail to power up.

 You could always rework the board yourself! :D


 On Friday, May 2, 2014 5:14:03 AM UTC-7, Gerald wrote:

 Sounds like you may have an issue with your board. You can always send it 
 in on an RMA and we can look at it.

 Gerald



 On Thu, May 1, 2014 at 10:51 PM, DLF dumb.lo...@gmail.com wrote:

 Hi and thanks for your reply

 Well this is not true for me (my BBB won't boot directly with DC (Rev 
 A5C))... but it is not a deal breaker for me.  

 As this is Richard's thread I'll back out now I don't want to be a 
 budinski.

 BTW, Gerald  Robert, a friendly thank-you for all the work with BBB.   
 I've learned a few things along the way and I appreciate your efforts.

 merci,



 On Tuesday, 29 April 2014 19:39:03 UTC+2, Gerald wrote:

 Do not touch the power button unless you plan to turn it off. The SRM 
 is correct.

 To power on all you have to do is plug in the power, either USB or DC.

 Gerald



 On Tue, Apr 29, 2014 at 12:35 PM, DLF dumb.lo...@gmail.com wrote:

 Hi,

 now I am confused because I thought it was normal procedure to hold 
 the power button after inserting the 5V jack.   (as noted by Richard-tx)

 I always have to hold the power button after inserting the jack.  When 
 I insert the jack, I see a brief blue light from the pwr LED next to the 
 5V 
 connector and then nothing.  If I hold the power button it boots.  - 
 every 
 time.

 This thread lead me to believe the power button was the right way to 
 do it !https://groups.google.com/forum/#!topic/beagleboard/
 FGeL6jzOcB0

 however the SRM indicates otherwise   :(

 7. Booting the Board
 As soon as the power is applied to the board, it will start the 
 booting up process.
 When the board starts to boot the LEDs will come on in sequence as 
 shown in Figure
 15 below. It will take a few seconds for the status LEDs to come on, 
 so be patient.
 The LEDs will be flashing in an erratic manner as it boots the Linux 
 kernel.


 It is not the end of the world for me, but just interested all the 
 same.

 cheers,


 On Monday, 28 April 2014 14:17:43 UTC+2, Gerald wrote:

 It is supposed to power up automatically when you plug in the DC 
 cable.

 Gerald



 On Sun, Apr 27, 2014 at 10:20 AM, Richard-tx rich.a...@gmail.comwrote:

 The way my BBB works is like this:

 To power up the BBB from OFF when powered from the 5 v jack, I have 
 to press the power button.
 To power up using the mini-usb connector, all I have to do is turn 
 on the USB power.

 My question is this.  Is there a way to have the BBB automatically 
 power up when power is applied to the +5 jack?

 .
  
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Re: [beagleboard] power up using +5 volt jack

[DLF]

Hi and thanks for your reply

Well this is not true for me (my BBB won't boot directly with DC (Rev 
A5C))... but it is not a deal breaker for me.  

As this is Richard's thread I'll back out now I don't want to be a budinski.

BTW, Gerald  Robert, a friendly thank-you for all the work with BBB.   
I've learned a few things along the way and I appreciate your efforts.

merci,


On Tuesday, 29 April 2014 19:39:03 UTC+2, Gerald wrote:

 Do not touch the power button unless you plan to turn it off. The SRM is 
 correct.

 To power on all you have to do is plug in the power, either USB or DC.

 Gerald



 On Tue, Apr 29, 2014 at 12:35 PM, DLF dumb.lo...@gmail.com 
 javascript:wrote:

 Hi,

 now I am confused because I thought it was normal procedure to hold the 
 power button after inserting the 5V jack.   (as noted by Richard-tx)

 I always have to hold the power button after inserting the jack.  When I 
 insert the jack, I see a brief blue light from the pwr LED next to the 5V 
 connector and then nothing.  If I hold the power button it boots.  - every 
 time.

 This thread lead me to believe the power button was the right way to do 
 it !https://groups.google.com/forum/#!topic/beagleboard/FGeL6jzOcB0

 however the SRM indicates otherwise   :(

 7. Booting the Board
 As soon as the power is applied to the board, it will start the booting 
 up process.
 When the board starts to boot the LEDs will come on in sequence as shown 
 in Figure
 15 below. It will take a few seconds for the status LEDs to come on, so 
 be patient.
 The LEDs will be flashing in an erratic manner as it boots the Linux 
 kernel.


 It is not the end of the world for me, but just interested all the same.

 cheers,


 On Monday, 28 April 2014 14:17:43 UTC+2, Gerald wrote:

 It is supposed to power up automatically when you plug in the DC cable.

 Gerald



 On Sun, Apr 27, 2014 at 10:20 AM, Richard-tx rich.a...@gmail.comwrote:

 The way my BBB works is like this:

 To power up the BBB from OFF when powered from the 5 v jack, I have to 
 press the power button.
 To power up using the mini-usb connector, all I have to do is turn on 
 the USB power.

 My question is this.  Is there a way to have the BBB automatically 
 power up when power is applied to the +5 jack?

 .
  
 -- 
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[beagleboard] Re: NO DUTY, RUN, PERIOD, POLARITY in bone_capemgr.9(ocp.2/pwm_test_P8_13.#)FILE

[DLF]

Hi,
I am no expert but I think the post at the bottom of this page may have 
your answer.

good luck


https://github.com/alexanderhiam/PyBBIO/issues/18




On Tuesday, 29 April 2014 09:26:17 UTC+2, Yanlong Mu wrote:

 ANYONE THERE?

 I just a fresher did the servo test with my BBB, however, when I use some 
 command as (
 http://www.phys-x.org/rbots/index.php?option=com_contentview=articleid=106:lesson-3-beaglebone-black-pwmcatid=46:beaglebone-blackItemid=81)
  
 tutorial, I just find some serious problem with my pwm setting.
  

 ubuntu@ubuntu-ianymu:/sys/devices/ocp.2/pwm_test_P8_13.14$ ls
 modalias  power  subsystem  uevent

 I consider there are missing some file with my BBB. it should includes 
 run, duty, period, polarity.

 So I try to use update it does not work, and use 

 # echo am33xx_pwm  /sys/devices/bone_capemgr.9/
 slots
 # echo bone_pwm_P8_13  /sys/devices/bone_capemgr.9/slots

 it all did not worked on it. 

 Guys, I have already asked many ask forum about this question, no one know 
 how to fix that. somebody suggest me to change the DEBIAN or ANGSTROM.

 I would like to figure it out what's going on with that problem.

 Anyone can help me to solve that? pleease..

 So, there are some information about my bbb and environment.

  ubuntu@ubuntu-ianymu:~$ uname -a
 Linux ubuntu-ianymu 3.8.13-bone20 #1 SMP Wed May 29 10:49:26 UTC 2013 
 armv7l armv7l armv7l GNU/Linux

 root@ubuntu-ianymu:/sys/kernel/debug# cat /sys/kernel/debug/pwm
 platform/48304100.ecap, 1 PWM device
  pwm-0   ((null)  ):

 platform/48304200.ehrpwm, 2 PWM devices
  pwm-0   ((null)  ):
  pwm-1   ((null)  ):

 platform/48302200.ehrpwm, 2 PWM devices
  pwm-0   ((null)  ):
  pwm-1   ((null)  ):

 platform/48300100.ecap, 1 PWM device
  pwm-0   ((null)  ):

 platform/48300200.ehrpwm, 2 PWM devices
  pwm-0   ((null)  ):
  pwm-1   ((null)  ):


 If you need any query please do not hesitate contact with me. 

 Your sincerely

 Ian Mu 


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