[Arm-netbook] "[EOMA68] RFC: ADDITION OF SD/MMC TO STANDARD."

[Luke Kenneth Casson Leighton]

joe could you please keep this discussion on topic and limit it to
what the subject line says, thank you.  regarding what you've
suggested: that will involve at least $6k NREs for the tooling.  it
also will not be part of the EOMA68 standard.  an individual board
however in non-EOMA68-compliance mode could have this done.

now - do you have any input at all on what the subject-line is about?
much appreciated.

l.

On Tue, Dec 24, 2013 at 12:07 PM, joem <joem at martindale-electric.co.uk> wrote:
>
>> > My thoughts were to add an high pin count
>> > FPC somewhere to get more pins out
>> > than limit the box to 68 pins.
>>
>>  next revision.  we need to sell units first.  or someone needs to
>> provide the $10k NREs to be able to have the first EOMA68-A20 CPU card
>> layout completely redesigned.  but even then, an FPC is not going to
>> be part of the EOMA68 specification because the EOMA68 specification
>> is a mass-volume specification where the units are sold with a sealed
>> metal shield around them.
>
>
> What I notice was that the HDMI end has a gap that will allow
> an FPC flat cable to be fitted through the gap.
> Careful design needed though - tight squeeze to get access
> to the ears of the FPC connector to allow cable to be connected
> and disconnected without having to open the case.
>
> The alternative is an FPC positioned at 90 degrees
> which forces the case to be opened for fitting.
> A flexible PCB with 90 degree tracks would be the way to
> connect into the EOMA, and only embedded engineer would do it.
>
> A third alternative is to have the PCMCIA case made with a
> laser cut slot to allow the FPC cable to be connected.
> But that goes against the idea of a well sealed box.
>
>
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