[Arm-netbook] microSD breakout board, suitable for debugging using tablets.

Tom Cubie tangliang at allwinnertech.com
Mon Feb 13 02:06:36 GMT 2012

On 02/13/2012 09:43 AM, lkcl luke wrote:
> On Mon, Feb 13, 2012 at 1:18 AM, Tom Cubie<tangliang at allwinnertech.com>  wrote:
>> I can get the lcd console either. I have reported to the girl who
>> workson the display driver the problem. She is not interested and
>> will not look at it. She said it's no use in products :(
>   what, screens are of no use??

She means fb console, showing the little penguin at boot time is
no use in products. The lcd driver is ok when playing some test
videos under linux cli, no display for the console. I will look
at it later, after i get the u-boot booted from sdcard.

>   hmmm.
>   suggestions:
>   1) can you at least turn the lcd backlight on and off?  find the code
> that enables the backlight and shove it as early as you dare, and use
> it for signalling.
>   2) are there any LEDs?  program them directly - see if you can switch
> one of them on.
>   3) last resort: another way is to do a power-up then pause for a
> couple of seconds then power-down (hard power down).   call this first
> off *right* as the first line of the kernel init function.  if it
> works (i.e. if the system powers down after the allotted time period)
> then you can move that function call around until you find a failure
> point (i.e. when it *doesn't* power down any more).
> l.
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