Re: [beagleboard] booting from sd card upon power up

dogtag on the flash when I boot up is: BeagleBoard.org BeagleBone Debian Image 2014-04-23 How should I now proceed? just put in the ubuntu SDR image sd card, and reboot? -- Extra Ham Operator: K7AZJ Registered Linux User: 275424 Raspberry Pi and Arduino developer *The most exciting phrase to

Re: [beagleboard] booting from sd card upon power up

after I boot up the sd card, I cannot get into it via usb any longer. It just hangs. booting up from flash : screen /dev/blahblah 115200 (no problem) booting up from sd card: same as above (it just hangs, maybe its no longer 115200?) -- Extra Ham Operator: K7AZJ Registered Linux User: 275424

[beagleboard] Re: Custom board with AM3354 kernel panic with 47pF on LCD lines

DDR3 memory interconnect is a critical design. As you can see "almost identical" is not good enough. Either you make it "identical", and that includes a lot more than just the memory interconnect lines, themselves. (High speed digital design is also sensitive to grounds, line impedance, ground

Re: [beagleboard] booting from sd card upon power up

On Thu, Sep 3, 2015 at 10:23 AM, Jerry Davis wrote: > dogtag on the flash when I boot up is: > > BeagleBoard.org BeagleBone Debian Image 2014-04-23 Okay, that one will look for uEnv.txt in the first partition, "uenvcmd=" would let your microSD take over from the eMMC.. > How

Re: [beagleboard] booting from sd card upon power up

I will get you the rest of the info today. I got the ubuntu image from here: http://www.kd0cq.com/2014/08/packed-full-beaglebone-black-img-file-rtl-sdr-gnuradio-gqrx-lots-more-on-ubuntu-14-04/ -- Extra Ham Operator: K7AZJ Registered Linux User: 275424 Raspberry Pi and Arduino developer *The

Re: [beagleboard] booting from sd card upon power up

which, I think means that it is booting off the sd card. I have not been able to login via usb or with ssh (because I don't know the password, all of my guesses are incorrect at this point). I have asked the author for the username/password pair. Hope to hear back soon. So I think the booting

[beagleboard] Re: Damaged Beagle Bone Black (neither boots nor supplies VDD_3V3B)

Having an elemt14 BBB, is it correct that I need to send it back to Farnell? Considering I have not obtained my BBB from Farnell directly can I even use their service? I do not have a customer ID and cannot even order from Farnell since I am a non-commercial individual... Regards, Matthias

Re: [beagleboard] SPI and I2C port use?

> > *SPI has a dedicated CS line. You can and that with a GPIO pin and create > more CS signals if you like.* Wonder why more people do not realize this ? SPI on Linux is software . . .a CS "line" pin, etc is just a toggled GPIO high/low at the appropriate times. . . . On Thu, Sep 3, 2015 at

[beagleboard] Linux 3.18 garbled uart

I am trying to boot 3.18 (3.18.16) and get to the uart0 registration and then the console output stops after the uart is probed. 644e09000.serial: ttyO0 at MMIO 0x44e09000 (irq = 154, base_baud = 300) is a OMAP UART Then there is just garbage on the serial port. Has anyone succesfully

Re: [beagleboard] SPI and I2C port use?

> On Sep 3, 2015, at 05:41 , Gerald Coley wrote: > > EEPROM is in I2C0 which does not connect to the expansion headers. I2C2 is a > shared bus. As long as no tow devices have the same address, you are limited > to 255 different devices on an I2C bus. Sorry, I meant

Re: [beagleboard] Re: Damaged Beagle Bone Black (neither boots nor supplies VDD_3V3B)

Yes, Farnell is responsible for their boards. Gerald On Thu, Sep 3, 2015 at 12:14 PM, wrote: > Having an elemt14 BBB, is it correct that I need to send it back to > Farnell? > Considering I have not obtained my BBB from Farnell directly can I even > use their

Re: [beagleboard] SPI and I2C port use?

> On Sep 3, 2015, at 11:30 , William Hermans wrote: > > SPI has a dedicated CS line. You can and that with a GPIO pin and create more > CS signals if you like. > > Wonder why more people do not realize this ? SPI on Linux is software . . .a > CS "line" pin, etc is just a

[beagleboard] Ubuntu 14.04 LTS on BBB

hello All, every a few days of diligent work, my BBB loaded with Ubuntu 14.04 LTS vanishes. No SSH access, no ping response. How can I troubleshoot that? The log in /var/log/syslog seems to be incomplete. Many days are missing. There is only an USB meteo sensor connected. thanks for your

[beagleboard] Why cannot the cross-assembler work on this asm code?

Hi, I am working on assembler code with arm-linux-gnueabihf-as with a third part code project. I find that the assembler has errors: > arm-linux-gnueabihf-as test_sp0.s test_sp0.s: Assembler messages: test_sp0.s:1: Error: junk at end of line, first unrecognized character is `='

[beagleboard] Ubuntu 14.04 hangs on the BBB

Hello All, I have installed Ubuntu 14.04 on the BBB eMMc, and it works fine. It has an USB meteo sensor connected. Every few days it becomes unavailable: no ping answers, no ssh access. I need to unplug it, and then it reboots fine, but when I look into /var/log I find very little. How can I

Re: [beagleboard] Ubuntu 14.04 hangs on the BBB

How stable and powerful is your power supply? U might try to connect your Weather station over a powered USB hub. On Thu, Sep 3, 2015 at 6:12 PM, wrote: > Hello All, > > I have installed Ubuntu 14.04 on the BBB eMMc, and it works fine. > > It has an USB meteo sensor

[beagleboard] Re: Serial Debug output to ethernet

booting console is serial only as far as I know. You can put serial on ethernet by using a serial server: http://www.atop.com.tw/atop/product/product_detail/data/atop_iapl/en/serial_device_servers_entry_level/se5001_series/ But we prefer to turn a (second) bbb into a serial server! Just attach

[beagleboard] How to build ALSA device library onto a board similar to Beaglebone Black?

Hi, I have downloaded ALSA lib (the latest stable release) from: ftp://ftp.alsa-project.org/pub/lib/ There is a thread on install ALSA: http://mailman.alsa-project.org/pipermail/alsa-devel/2011-February/036595.html Hello alls: Please help. I also cross compiled alsa utils trhough

Re: [beagleboard] BBB OpenSuse 13.2 no video output

Hi Robert, Do you have a suggestion how I can track down the root cause? Is there a way to debug the module managing the LCD output since I don't see any error on the Xorg.0.conf ? Thanks, Matthieu Le mercredi 2 septembre 2015, matthieu claire a écrit : > I tried

Re: [beagleboard] How to build ALSA device library onto a board similar to Beaglebone Black?

On Thu, Sep 3, 2015 at 2:54 PM, Robert Willy wrote: > Hi, > > I have downloaded ALSA lib (the latest stable release) from: > > ftp://ftp.alsa-project.org/pub/lib/ > > > > > There is a thread on install ALSA: >

Re: [beagleboard] booting from sd card upon power up

On Thu, Sep 3, 2015 at 10:59 AM, Jerry Davis wrote: > which, I think means that it is booting off the sd card. > > I have not been able to login via usb or with ssh (because I don't know the > password, all of my guesses are incorrect at this point). > I have asked the author

Re: [beagleboard] booting from sd card upon power up

yeah, (sheepishly), figured it out. I wasn't putting in the Capital T. Thanks for your responses. Jerry -- Extra Ham Operator: K7AZJ Registered Linux User: 275424 Raspberry Pi and Arduino developer *The most exciting phrase to hear in science - the one that heralds new discoveries - is not

[beagleboard] SPI and I2C port use?

I'm having trouble figuring out which SPI ports are available on the BBB if I want to continue to use the eMMC. I also need to connect I2C and SPI to an audio codec IC. I think I can use any I2C/SPI port combination, right? Just might have to modify the driver a bit? I'm using the same codec

[beagleboard] Re: Serial Debug output to ethernet

Toni is correct. Via SSH, you can not sign in until booting is complete, so you can not watch the boot process this way. You can go look at the syslog at /var/log/syslog after signing in, and see (most of) what happened, assuming that it did complete booting. This may or may not help you. ---

Re: [beagleboard] Damaged Beagle Bone Black (neither boots nor supplies VDD_3V3B)

Without knowing what exactly the damage is, I can't tell you what caused it. My suggestion is to send it in and let us figure out if we can what happened. http://www.elinux.org/Beagleboard:BeagleBoneBlack Gerald On Thu, Sep 3, 2015 at 6:14 AM, wrote: > Hi, > >

Re: [beagleboard] SPI and I2C port use?

EEPROM is in I2C0 which does not connect to the expansion headers. I2C2 is a shared bus. As long as no tow devices have the same address, you are limited to 255 different devices on an I2C bus. SPI has a dedicated CS line. You can and that with a GPIO pin and create more CS signals if you like.

[beagleboard] Damaged Beagle Bone Black (neither boots nor supplies VDD_3V3B)

Hi, apparently I must have somehow damaged my Beagle Bone Black Rev C. At the time the device was damaged, only GND, VDD_3V3B, VDD_5V and Ethernet were connected, so I am sure it was not overvoltage at one of the GPIO/AIN pins (got my experiences with that already). The current state of the