Re: [beagleboard] kernel compile results in no networks
That's perfect, thanks! The --enable-smp did the trick. I've run some of the tests, and it looks good. -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/986e8da2-5abb-4297-ba48-6c05d19e22df%40googlegroups.com.
Re: [beagleboard] Pocket Beagle power question
I am near certain I am seeing the same problem on a board based on the Pocket Beagle Design. Though that board is more of a hybrid of the BBBW and the PB as I have eMMC an LCD nearly idenitcal to the 4.3 cape but no P1/P2 P8/P9 I did preliminary code development on a BBBW and BBB and had not problems. On the production boards I am seeing random reboots anywhere from every 30 min to as long as 24hours apart. I now have nearly idenitical code running on the BBBW - same linux (5.1.18) almost the same devicetrees, I am not seeing these random reboots on the BBBW. There are very slight differences in the power schematice between the PB and the BBBW, but I am not an EE and I can not see a meaningful difference. Further the ball numbers on the schematics are different - I thought the BBBW and the PB both used the same OSD chip ? -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/d820c267-adbd-4c4b-8d63-f0f625fe4dcc%40googlegroups.com.
Re: [beagleboard] Pocket Beagle power question
Jason:
The PocketBeagle will do this, when powered from a serious Lab-bench power
supply running into P1-Pin-1, with added capacitance on the pin, without
added capacitance on the pin, without any other accessory or cape drawing
power from the PocketBeagle. I reported this in November 2017, and there
have been three or four other reports by other users since then. It makes
the PocketBeagle unusable for any serious application, where it is not
powered from the microUSB connector.
--- Graham
==
On Mon, Aug 12, 2019 at 9:34 AM Pablo Rodriguez
wrote:
> Hi,
> The past year i have to power 3 pocketbeagle from Vusb because of the
> random reset when connecting to Vin. This was the only thing that worked
> for me. Did a lot of testing adding capacitance and non work.
>
>
>
> El lun., 12 ago. 2019 a las 10:52, Jason Kridner (<
> jkrid...@beagleboard.org>) escribió:
>
>> On Sat, Aug 10, 2019 at 9:50 PM Graham Haddock
>> wrote:
>>
>>> What I would do is some minor surgery on the PocketBeagle, disconnecting
>>> the +5V lead coming in the microUSB connector.
>>> The easiest way to do this would be to remove FB1 (ferrite bead in
>>> series with USB +5).
>>> Easy with "hot tweezers", or a pair of small soldering irons.
>>> To restore the Pocketbeagle to factory configuration, solder FB1 back in.
>>>
>>>
>> Whatever instability problems you are seeing, I don't see this addressing
>> it. The PMIC is designed to dynamically switch between the P1.1 ("AC power"
>> in PMIC terms, which always bothers me because it is never AC, but instead
>> DC assumed to come from an AC-powered wall-supply). If somehow there's not
>> enough capacitance to make the switch cleanly, I'd suspect you are doing
>> something rather odd with the *load* you are putting on it. What else do
>> you have connected?
>>
>> Anyway, I put both "AC" (P1.1) and "USB" (P1.7) on the headers on purpose
>> and the full expectation is that if you are putting a power supply in (and
>> it isn't a battery), you'll use P1.1. If it is battery, I also give you
>> that option at P2.14 (BAT).
>>
>>
>>> Short P1-Pin-1 and P1-Pin-7 together, and power the Beagle from whatever
>>> you are going to power it with at +5V.
>>> No issues with instability.
>>>
>>
>> OK, now you are just asking for trouble. There's no justification for
>> doing that.
>>
>> If the design isn't working as intended, then, let's talk about that and
>> details, such as what you are seeing on a scope and P2.13 (VOUT), which is
>> the output of the power mux on the PMIC, also referred to as SYS_5V on
>> BeagleBones. Ultimately, this is used to provide the power to the
>> regulators for the other subsystems. Perhaps your problem is drawing too
>> much current from it?
>>
>> It can be argued I put too many power options on the header, but I tried
>> to keep it flexible for people embedding it onto something. You have a lot
>> of flexibility and I don't see any need to encourage people to alter the
>> board.
>>
>> --
>> https://beagleboard.org/about - a 501c3 non-profit educating around open
>> hardware computing
>>
>> --
>> 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 beagleboard+unsubscr...@googlegroups.com.
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>> https://groups.google.com/d/msgid/beagleboard/CA%2BT6QPnR-AOUOp%3DPouR%3DBs%3D%3DFn_NKqTOJM%3DprURJFToD%3DQGaXw%40mail.gmail.com
>>
>> .
>>
> --
> For more options, visit http://beagleboard.org/discuss
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>
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Re: [beagleboard] Machinekit images - where are they?
On Sun, Aug 11, 2019 at 2:44 PM shabaz wrote: > > Hello, > > According to various links on the Internet, there are pre-built Linux images > with Machinekit. > For instance, the machinekit.io website states: > > Robert C. Nelson kindly provides a 2-weekly build of a complete Debian with > Machinekit image for a BeagleBone Black/White. > Head over to > elinux.org/Beagleboard:BeagleBoneBlack_Debian#BBW.2FBBB_.28All_Revs.29_Machinekit > and download and install the image on a microSD card and run the image from > that, or install the image on the eMMC. > > > However, the links seem to go to > https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#BBW.2FBBB_.28All_Revs.29_Machinekit Just a quick update, this link is now active again.. (the image built correctly last night)... Regards, -- Robert Nelson https://rcn-ee.com/ -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAOCHtYgNT3KKKJ_H6t%2BVLPNRUp-eEDCsbQcgdpTXJqKTkSJiSw%40mail.gmail.com.
Re: [beagleboard] Pocket Beagle power question
Hi,
The past year i have to power 3 pocketbeagle from Vusb because of the
random reset when connecting to Vin. This was the only thing that worked
for me. Did a lot of testing adding capacitance and non work.
El lun., 12 ago. 2019 a las 10:52, Jason Kridner ()
escribió:
> On Sat, Aug 10, 2019 at 9:50 PM Graham Haddock
> wrote:
>
>> What I would do is some minor surgery on the PocketBeagle, disconnecting
>> the +5V lead coming in the microUSB connector.
>> The easiest way to do this would be to remove FB1 (ferrite bead in series
>> with USB +5).
>> Easy with "hot tweezers", or a pair of small soldering irons.
>> To restore the Pocketbeagle to factory configuration, solder FB1 back in.
>>
>>
> Whatever instability problems you are seeing, I don't see this addressing
> it. The PMIC is designed to dynamically switch between the P1.1 ("AC power"
> in PMIC terms, which always bothers me because it is never AC, but instead
> DC assumed to come from an AC-powered wall-supply). If somehow there's not
> enough capacitance to make the switch cleanly, I'd suspect you are doing
> something rather odd with the *load* you are putting on it. What else do
> you have connected?
>
> Anyway, I put both "AC" (P1.1) and "USB" (P1.7) on the headers on purpose
> and the full expectation is that if you are putting a power supply in (and
> it isn't a battery), you'll use P1.1. If it is battery, I also give you
> that option at P2.14 (BAT).
>
>
>> Short P1-Pin-1 and P1-Pin-7 together, and power the Beagle from whatever
>> you are going to power it with at +5V.
>> No issues with instability.
>>
>
> OK, now you are just asking for trouble. There's no justification for
> doing that.
>
> If the design isn't working as intended, then, let's talk about that and
> details, such as what you are seeing on a scope and P2.13 (VOUT), which is
> the output of the power mux on the PMIC, also referred to as SYS_5V on
> BeagleBones. Ultimately, this is used to provide the power to the
> regulators for the other subsystems. Perhaps your problem is drawing too
> much current from it?
>
> It can be argued I put too many power options on the header, but I tried
> to keep it flexible for people embedding it onto something. You have a lot
> of flexibility and I don't see any need to encourage people to alter the
> board.
>
> --
> https://beagleboard.org/about - a 501c3 non-profit educating around open
> hardware computing
>
> --
> 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 beagleboard+unsubscr...@googlegroups.com.
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> https://groups.google.com/d/msgid/beagleboard/CA%2BT6QPnR-AOUOp%3DPouR%3DBs%3D%3DFn_NKqTOJM%3DprURJFToD%3DQGaXw%40mail.gmail.com
>
> .
>
--
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Re: [beagleboard] Pocket Beagle power question
On Sat, Aug 10, 2019 at 9:50 PM Graham Haddock wrote:
> What I would do is some minor surgery on the PocketBeagle, disconnecting
> the +5V lead coming in the microUSB connector.
> The easiest way to do this would be to remove FB1 (ferrite bead in series
> with USB +5).
> Easy with "hot tweezers", or a pair of small soldering irons.
> To restore the Pocketbeagle to factory configuration, solder FB1 back in.
>
>
Whatever instability problems you are seeing, I don't see this addressing
it. The PMIC is designed to dynamically switch between the P1.1 ("AC power"
in PMIC terms, which always bothers me because it is never AC, but instead
DC assumed to come from an AC-powered wall-supply). If somehow there's not
enough capacitance to make the switch cleanly, I'd suspect you are doing
something rather odd with the *load* you are putting on it. What else do
you have connected?
Anyway, I put both "AC" (P1.1) and "USB" (P1.7) on the headers on purpose
and the full expectation is that if you are putting a power supply in (and
it isn't a battery), you'll use P1.1. If it is battery, I also give you
that option at P2.14 (BAT).
> Short P1-Pin-1 and P1-Pin-7 together, and power the Beagle from whatever
> you are going to power it with at +5V.
> No issues with instability.
>
OK, now you are just asking for trouble. There's no justification for doing
that.
If the design isn't working as intended, then, let's talk about that and
details, such as what you are seeing on a scope and P2.13 (VOUT), which is
the output of the power mux on the PMIC, also referred to as SYS_5V on
BeagleBones. Ultimately, this is used to provide the power to the
regulators for the other subsystems. Perhaps your problem is drawing too
much current from it?
It can be argued I put too many power options on the header, but I tried to
keep it flexible for people embedding it onto something. You have a lot of
flexibility and I don't see any need to encourage people to alter the board.
--
https://beagleboard.org/about - a 501c3 non-profit educating around open
hardware computing
--
For more options, visit http://beagleboard.org/discuss
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Re: [beagleboard] Pocket Beagle power question
Dave: I have never seen any clues in the logs. It just randomly spontaneously reboots about once a day. I suspect that running it from the USB Port-0 power input (P1-Pin-7) does not have the problem. Running it from Vin (P1-Pin-1) does have the problem. Running it from both in parallel does not have the problem, since the P1-Pin-7 always seems to work. The only other clue I can offer is that back in 2015, the BeagleBone Black had a problem with identical symptoms, that was fixed by Robert Nelson. He never said what he did to fix, but I am pretty sure he had to dig into the kernel. See thread: "BBB intermittently rebooting." Started 7/17/2015. --- Graham == On Monday, August 12, 2019 at 3:49:47 AM UTC-5, Dave wrote: > > Is there more information on this problem ? > > I am working on an OSD335x board that is similar to a PB or a BBBW - it > has eMMC. > > I am experiencing random crashing often taking as long as 18 hours, but > sometimes as frequently as 30 min. > But the problem does not occur on a BBBW with almost identical > hardware/software. > > I am looking for clues. > > I will try powering from USB and the standard +5 input concurrently. > -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/dd851261-45b7-4c41-aaf7-219d41c09388%40googlegroups.com.
Re: [beagleboard] Pocket Beagle power question
Is there more information on this problem ? I am working on an OSD335x board that is similar to a PB or a BBBW - it has eMMC. I am experiencing random crashing often taking as long as 18 hours, but sometimes as frequently as 30 min. But the problem does not occur on a BBBW with almost identical hardware/software. I am looking for clues. I will try powering from USB and the standard +5 input concurrently. -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/8b6b9fde-ffe7-4389-bafc-a65ac7b04c23%40googlegroups.com.
