[Arm-netbook] SHIPPING!: EOMA-68 Micro Engineering Boards

[Christopher]

Given the issue with the uarts, Is it too far fetched to consider the differential pairs got swapped? (I.e. pin 68 isn't actually going to SATA B- and so on...) I know all the pins on the MEB match the PCMCIA connector. But perhaps the 68pin on the cardedge is misrouted on the a20 card. (Which would require soldering as you mentioned. )

Also, everyone might want to look at their card edge connectors on the a20 PCB. Tried booting up one of mine and it worked and then halted. Looked at the connector and saw pin 66 and pin 33 were slightly bridged (tiny tiny blob of solder was in a peak pointed at the connector )

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On Aug 11, 2013, at 12:30 PM, "luke.leighton" <luke.leighton at gmail.com> wrote:

> On Sun, Aug 11, 2013 at 2:47 PM, Christopher Thomas
> <christopher at firemothindustries.com> wrote:
>> 
>> 
>> On Sun, Aug 11, 2013 at 8:00 AM, luke.leighton <luke.leighton at gmail.com>
>> wrote:
>>> 
>>> On Sun, Aug 11, 2013 at 1:01 PM, luke.leighton <luke.leighton at gmail.com>
>>> wrote:
>>>> http://www.rom.by/files/schematic_SATA_con.JPG
>>>> 
>>>> .... o arse :)  you know what's happened, don't you? :)
>>>> 
>>>> *sigh* let me try desoldering the sata conector....
>>> 
>>> ok decided to cut tracks instead.... then traced them through and
>>> noticed that compared to the MEB.pdf i have, actually.... err.... the
>>> connections look ok.
>>> 
>>> chris did you turn A/B round at all?
>> 
>> No, for SATA, I used the exact part that was listed in the BOM I received
>> from you.  Heck, I even compared what I ordered to the 3D Images of the
>> board in Altium.
> 
> ok.  and i think that was the right thing to do, i'm looking at
> cubieboard schematics and yes they do the exact same thing, RX-to-RX,
> TX-to-TX (so presumably it's at the drive end that they're turned
> around, or by the sata cable)
> 
> i've desoldered one of the SATA sockets and put 4 20mm wires on it
> (ok, 5) - poked 5 into the end of the EOMA68 connector: still no
> response.
> 
> next up to consider is soldering the SATA connector directly to the
> EOMA68-A20 PCB, which, for obvious reasons i'm somewhat reluctant to
> do.
> 
> l.
> 
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