Re: [Gumstix-users] Bootable MicroSD won't boot

[Joseph J. <jo...@ha...>]

Hey Neil,

I've noticed some weird things with regards to the power supply as well. I usually power the board using a USB cable connected to my laptop. This setup works fine as long as I have a cable connected to the USB serial port as well (won't even power up otherwise...or at least I don't think so because I don't see the LEDs light up). It won't work if I connect the board to a power outlet using the same USB cable (ie. connecting usb cable to an iphone/htc usb power socket). It really is quite baffling.

And to make things worse the problem has come back. I have 2 microSD cards. 1 with a console image and one with a desktop image (both using Sakoman's prebuilt images). The board itself has a prebuilt factory desktop image on nand flash. Last week all three booted fine.

When I tried yesterday, only sakoman's desktop image on microSD booted fine. The console image would boot until a certain (seemingly random) point in the boot sequence then just stop. The nand image would boot until a certain (random) point the first time then it keeps rebooting without getting past u-boot each time.

Don't know if its related but I can't get any output on HDMI either. I am using a pico projector using the default settings (1024x768@60). I have tested the projector on my Mac running at 1024x768 @ 60 Hz and it works fine. Keyboard input won't work either (connected using a D-Link DHUB7 powered USB hub). Really can't make head or tail of any of this.

Joe

On 8 Mar 2012, at 02:00, Neil MacMunn wrote:

> Joe,
> How are you powering your device? I've seen a similar problem using a
> lab power supply that was hitting it's current limit.
> 
> -
> Neil
> 
> ------------------------------------------------------------------------------
> Virtualization & Cloud Management Using Capacity Planning
> Cloud computing makes use of virtualization - but cloud computing 
> also focuses on allowing computing to be delivered as a service.
> http://www.accelacomm.com/jaw/sfnl/114/51521223/
> _______________________________________________
> gumstix-users mailing list
> gum...@li...
> https://lists.sourceforge.net/lists/listinfo/gumstix-users