[Arm-netbook] eoma68-a20 ethernet testing

joem joem at martindale-electric.co.uk
Thu Sep 5 22:28:07 BST 2013


On Thu, Sep 5, 2013 at 7:46 PM, joem <joem at martindale-electric.co.uk> wrote:
>
> On Thu, Sep 5, 2013 at 12:05 PM, luke.leighton <luke.leighton at gmail.com>
> wrote:
>>
>> On Thu, Sep 5, 2013 at 3:38 PM, joem <joem at martindale-electric.co.uk>
>> wrote:
>> Send
>>
>> > Or should I order 2 x what you will be trying out for flying squirrel?
>>
>> ... let me think.... i'm going to say yes! :)  what the heck: yes.
>> model number LD070WS2(SL)(01
>
>
> Sorry Luke, but where do the LVDS signals come from to drive this LCD?

 from the RGB-ttl-to-LVDS converter IC you previously mentioned.  in
the case of the flying squirrel it's using a TI SN75LVDS83b

> Can A20 LVDS signals be routed to the LCD or GPIO pins through software?

 yes but if you do so it's non-EOMA68-compliant.  so please try not to
encourage people too much.

> Does that not mean some kind of MEB variant with FPC connector
> needs to be rushed to be made to accommodate?

 ok because of the significant variations in LCDs and their backlight
drivers i'd recommend a daughterboard approach

--
best get on with it a daughterboard then!
May be two types - one LVDS, other is RGB patch panel to FCP connector(s).

Anyone got datasheet on KR070PB2S 7" display?
It appears to be scrubbed from internet surgically clean!
Reason is this price I guess:
http://www.bipanda.com/taobao/view/id/17606702073




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