[beagleboard] Re: PRU SPI ADC communication

Hi David: I think it is a hardware problem. It looks like you are not doing a good job referencing your ground input for the ADC, or you have a very dirty Voltage reference for the ADC. Either way, it is picking up some serious offset from a switching power supply (The PMMIC ???) somehow. I

Re: [beagleboard] Video image shifts right randomly

We've been running with the new bootloader for a few days and it seems like updating the bootloader did the trick! Thank you! On Monday, February 6, 2017 at 2:19:43 PM UTC-7, RobertCNelson wrote: > > On Mon, Feb 6, 2017 at 3:09 PM, Brett > wrote: > > I am using 2014.01.

[beagleboard] Re: HELP! - I can't access my BBB any more.

No. I am developing some software to run as a part of an automation project, so expect the board to be tolerant to the power loss. So i just pulled the pug out - no shutdown -h. What could break and what is a way to diagnose it? On Wednesday, February 8, 2017 at 7:34:08 AM UTC-5, Roman

Re: [beagleboard] Re: PRU SPI ADC communication

Hi David: I am glad to hear that you got it fixed. I am posting your reply back to the Beaglebone reflector, so others can benefit from the discussion. If you are talking about RAM in the PRU, perhaps some PRU expert can answer your question. (I am not a PRU expert.) If you are talking about

[beagleboard] Re: Invalid partition message during boot

Got around that problem. My uEnv.txt file was wrong. On Wednesday, February 8, 2017 at 1:10:20 PM UTC-7, acheesehead wrote: > > I built Linux RT for a custom board based upon Beagleboard xM exactly as > in Robert C. Nelson's page > https://eewiki.net/display/linuxonarm/BeagleBoard. > > > --

[beagleboard] Re: Invalid partition message during boot

Boots ok on Beagleboard xM, but hangs on our custom board. U-Boot SPL 2017.03-rc1-dirty (Feb 04 2017 - 12:10:18) Trying to boot from MMC1 SPL: Please implement spl_start_uboot() for your board SPL: Direct Linux boot not active! reading u-boot.img reading u-boot.img U-Boot 2017.03-rc1-dirty (Feb

Re: [beagleboard] Invalid partition message during boot

On Wed, 2/8/17, Robert Nelson wrote: Subject: Re: [beagleboard] Invalid partition message during boot To: "Beagle Board" Cc: acheeseh...@gmail.com Date: Wednesday, February 8, 2017, 10:16 PM

Re: [beagleboard] Re: Invalid partition message during boot

On Wed, Feb 8, 2017 at 2:33 PM, acheesehead wrote: > Boots ok on Beagleboard xM, but hangs on our custom board. > > U-Boot SPL 2017.03-rc1-dirty (Feb 04 2017 - 12:10:18) > Trying to boot from MMC1 > SPL: Please implement spl_start_uboot() for your board > SPL: Direct Linux

Re: [beagleboard] Re: HELP! - I can't access my BBB any more.

On Wed, Feb 8, 2017 at 1:22 PM, Roman Prilutsky wrote: > No. I am developing some software to run as a part of an automation project, > so expect the board to be tolerant to the power loss. So i just pulled the > pug out - no shutdown -h. > What could break and what is a

Re: [beagleboard] Re: HELP! - I can't access my BBB any more.

If you want a board that can be unplugged with no damage better look elsewhere. Or do what i have done and design around that limitation. On 2/8/2017 12:22 PM, Roman Prilutsky wrote: > No. I am developing some software to run as a part of an automation > project, so expect the board to be

Re: [beagleboard] Invalid partition message during boot

On Wed, Feb 8, 2017 at 2:10 PM, acheesehead wrote: > I built Linux RT for a custom board based upon Beagleboard xM exactly as in > Robert C. Nelson's page https://eewiki.net/display/linuxonarm/BeagleBoard. > > Here is what I get during boot, tried on a real Beagleboard xM

[beagleboard] Invalid partition message during boot

I built Linux RT for a custom board based upon Beagleboard xM exactly as in Robert C. Nelson's page https://eewiki.net/display/linuxonarm/BeagleBoard. Here is what I get during boot, tried on a real Beagleboard xM and get the same behavior. The booting stops at a u-boot prompt. U-Boot SPL

Re: [beagleboard] Re: HELP! - I can't access my BBB any more.

ME and a software buddy have a nice watchdog timer powered from the BBB battery holds up the BBB till it shuts down then removes power draws 400uA from the battery while waiting for the power to be reapplied. On 2/8/2017 2:57 PM, Roman Prilutsky wrote: > > > On Wednesday, February 8, 2017 at

[beagleboard] Re: HELP! - I can't access my BBB any more.

On Wednesday, February 8, 2017 at 7:34:08 AM UTC-5, Roman Prilutsky wrote: > > My BBB was running debian jessie and i could access it over USB and > Ethernet. Then, after one power off/power on it stopped booting from eMMC. > To be exact I stoped been able too access it over both USB and

Re: [beagleboard] Re: Invalid partition message during boot

Robert, My u-boot mod somehow got wiped. Put it back in and recompiled. I'm still having a problem with the device tree (which I don't know enough about): U-Boot 2017.03-rc1-dirty (Feb 08 2017 - 15:00:15 -0700) OMAP3630/3730-GP ES1.2, CPU-OPP2, L3-200MHz, Max CPU Clock 1 GHz OMAP3 Beagle board

[beagleboard] Failed to start Cape Manager Service.

During boot I am getting a "Failed to start Cape Manager Service." failure I have a custom cape that gets loaded via /uEnv.txt along with BB_SPIDEV0, both show up in slots my problem is that the disable for HDMI does not work as the pinmux still shows the hdmi pins as assigned. *OS Version*

Re: [beagleboard] Failed to start Cape Manager Service.

On Wed, Feb 8, 2017 at 4:32 PM, wrote: > During boot I am getting a "Failed to start Cape Manager Service." failure > > I have a custom cape that gets loaded via /uEnv.txt along with BB_SPIDEV0, > both show up in slots > > my problem is that the disable for HDMI does

Re: [beagleboard] Re: HELP! - I can't access my BBB any more.

On Wed, Feb 8, 2017 at 3:16 PM, evilwulfie wrote: > ME and a software buddy have a nice watchdog timer powered from the BBB > battery holds up the BBB till it shuts down then removes power > draws 400uA from the battery while waiting for the power to be reapplied. > So, in

Re: [beagleboard] Re: PRU SPI ADC communication

> I dont know if u can answer me, but i have another two question. What is the max RAM i can allocate to the samples from PRU, and if is possible to write directly to an uSDcard working as external > memory from the PRU. If not, i can do the a discuss about this. Theoretically, you should be able

Re: [beagleboard] Desired existing open source cape recommendation

If someone here is really good at PCB / electronics design, I can verbally explain exactly what needs doing, Also, while I personally do prefer an external style UPS( wide input voltage ). There is probably something to be said for a cape that has an power management micro controller, plus lets

Re: [beagleboard] Desired existing open source cape recommendation

Looks like Andice Labs has two capes of interest. If you want to run from a single cell lithium, then their "Power Cape" looks interesting. http://andicelabs.com/beaglebone-powercape/ If you want to run from and maintain a 12V Lead-acid battery, then their "Solar Power Cape" looks interesting.

[beagleboard] Re: Is there a web server on the BBB

An accessable htdocs location that you can serve html files from that will pop out on the BBBW's (Rev C) is at: /usr/share/bone101/Support Now we don't want to corrupt the web server setup that comes stock with Angstrom, so make a directory in this directory. Call it htdocs or maybe your

[beagleboard] Re: UAV Drone out of a BBBW

Ok here is what I have so far. I'm almost finished with the geodesic (I still want to "solvent weld" the joints though). Need to swap out the wire with picture-hanging wire and get the basswood "base board" to mount my electronics on. I'm going to do the motor mounts as aluminum plates that

[beagleboard] PRU SPI ADC communication

Hi, I adapted the code from Derek Molloy example - http://exploringbeaglebone.com/chapter13/ - https://github.com/derekmolloy/exploringBB/tree/master/chp13/adc - to read this adc - ad4000 - http://www.analog.com/media/en/technical-documentation/data-sheets/AD4000.pdf with a 500kHz sampling.

[beagleboard] Wifi direct on Beaglebone green

Hi, how can I enable wifi direct on a beagle bone green? 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,

[beagleboard] HELP! - I can't access my BBB any more.

My BBB was running debian jessie and i could access it over USB and Ethernet. Then, after one power off/power on it stopped booting from eMMC. To be exact I stoped been able too access it over both USB and Ethernet. I can still boot the board from SD and access the bard. eMMC boot though

Re: [beagleboard] Desired existing open source cape recommendation

I would like to support William's recommendation for a UPS type cape. Something that would allow the BBB to operate directly from ~11V to ~21V Instantly switch to an optional +12V battery if present, upon primary power loss. Recharge and float the optional +12V battery, if present, after any

Re: [beagleboard] Desired existing open source cape recommendation

Is the Andice cape readily available already? Is it good for the UPS function? On Wed, Feb 8, 2017 at 9:26 AM Graham wrote: > I would like to support William's recommendation for a UPS type cape. > > Something that would allow the BBB to operate directly from ~11V to ~21V

[beagleboard] Can not find module 'bonescript'

Hi, I'm trying to run a simple script using the bonescript library on a BeagleBone with Linux Debian installed, and when I run in the Cloud9 IDE, it works fine. My script is called blinkled.js and when I try to run in line command, like "./blinkled.js", it is shown a long error message that

Re: [beagleboard] HELP! - I can't access my BBB any more.

when you shutdown your bone did you just pull the plug or use the shutdown now -h command then remove power ? On 2/7/2017 8:57 PM, Roman Prilutsky wrote: > My BBB was running debian jessie and i could access it over USB and > Ethernet. Then, after one power off/power on it stopped booting from