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Cannot get a Raspberry pi to boot

Discussion in 'Electronic Design' started by Don Lancaster, Dec 28, 2012.

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  1. Still cannot get the Raspberry pi to work after several frustrating tries.

    The memory card was bought from a pi specific source.
    Reloaded it twice. Specifically initialized the card.

    NTSC Video monitor flashes a time or two.
    Shows Nikon camera video just fine.

    Waiting a long time on boot makes no difference.

    Memory card shows the full 1.8 gigs uncompressed size.
    2 gig card does not have its class posted on label.

    Windows 8 makes running the checksum check difficult.

    Removing the wireless mouse and keyboard before boot makes no difference.

    Power supply is for a Motorola cell phone micro USB and seems to look
    and behave reasonably.
    Actual current unknown. Red LED lights quite bright.

    Next, the power voltage will be checked and an oscilloscope used to see
    what if anything is on the video output.
    And a class 10 full 4 gig card will be tried.
    Also the first few hundred K of the memory card will be separately read
    for reasonableness.

    The pi itself came from Allied Radio new and is not particularly suspect.


    Help!
    --
    Many thanks,

    Don Lancaster voice phone: (928)428-4073
    Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
    rss: http://www.tinaja.com/whtnu.xml email:

    Please visit my GURU's LAIR web site at http://www.tinaja.com
     
  2. Guest

    I believe you should be able to connect a 3.3V serialport, such as an
    FTDI
    to pins on one of the connectors and get a console in/out

    -Lasse
     
  3. Guest

    Try installing a *proper* operating system on it; one of the Linux flavours developed for it, preferably!
     

  4. I tried using their recommended "Wheezy" operating system.
    Straight from the downloads section of their website.

    --
    Many thanks,

    Don Lancaster voice phone: (928)428-4073
    Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
    rss: http://www.tinaja.com/whtnu.xml email:

    Please visit my GURU's LAIR web site at http://www.tinaja.com
     
  5. SoothSayer

    SoothSayer Guest

    As cheap as they are... buy another unit, and then debug the first.
     
  6. dalai lamah

    dalai lamah Guest

    Un bel giorno Don Lancaster digitò:
    When you power on the board, do you see some activity for 1-2 minutes on
    one of the LEDs (it should be the one for the SD? If not, I would try
    another SD and if it still doesn't work I'd RMA the board. If yes, try
    this:

    1) Connect the ethernet port to a DHCP-enabled network and check if the
    address is assigned (you can use nmap or any another network scan utility)
    and the board pings correctly;

    2) Try with the HDMI output. The analog output is crappy anyway.
     

  7. Only the power led lights continuously.
    The other led's remain dark.

    --
    Many thanks,

    Don Lancaster voice phone: (928)428-4073
    Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
    rss: http://www.tinajaherom/whtnu.xml email:

    Please visit my GURU's LAIR web site at http://www.tinaja.com
     
  8. Voltage measures 5.01 on the output connector.

    --
    Many thanks,

    Don Lancaster voice phone: (928)428-4073
    Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
    rss: http://www.tinaja.com/whtnu.xml email:

    Please visit my GURU's LAIR web site at http://www.tinaja.com
     

  9. Voltage measures 5.01 at the expansion connector.
    Using a 2GB card from a pi source with Wheezy.
    No leds ever light except for red power.

    --
    Many thanks,

    Don Lancaster voice phone: (928)428-4073
    Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
    rss: http://www.tinaja.com/whtnu.xml email:

    Please visit my GURU's LAIR web site at http://www.tinaja.com
     

  10. Voltage measures 5.01 at the expansion connector.
    Using a 2GB card from a pi source with Wheezy.
    No leds ever light except for red power.

    --
    Many thanks,

    Don Lancaster voice phone: (928)428-4073
    Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
    rss: http://www.tinaja.com/whtnu.xml email:

    Please visit my GURU's LAIR web site at http://www.tinaja.com
     
  11. Jasen Betts

    Jasen Betts Guest

    Is this an NTSC specific boot image?
    RPi comes from UK and (antique) TVs speak PAL there.

    I have not tested the analogue video output on my RPi for all I know
    it it turned off until configured.

    I'd suggest gettign a HDMI or HDMI to DVI cable and connecting it to a
    more modern display

    After booting is the USB live? (eg: does numlock work)

    AIUI booting it will change the contents of the card, The debian image
    changes drastically on first boot.
     
  12. T

    T Guest

    Oh - it's windows. Most of the dd based utilities for Windows suck ass
    in general.

    I did find a little utility that did the trick though. It's calle
    Flashnul. Lets you wipe and then image the card without issues.

    Try that!
     
  13. mkr5000

    mkr5000 Guest

    this is the famous author Don Lancaster? unreal ! cmos cookbook etc?
    I used your books till the bindings gave out.

    here I was thinking about a raspberry pi myself but if you can't get it to boot, forget about it.

    I'm a fan, Don.
     
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