Gordon Kruberg wrote:
>> Subject: [Gumstix-users] future hw feature request
>> Hi all,
>> What I want is quite simple:
>> A hole in the Waysmall case: cost of tooling
Over the LEDs, of course.
>> Small board rework and new turn: cost of engineering
> Is this the C92A question (and yes, that made the list) or something
> on the buddy-board?
Different question. However, you have inspired me, details below.
>> Two SMT leds, one green and one amber: < 1 cent
> On the gumstix, buddy board? Driven by what line-- GPIO or power?
On the gumstix itself, driven by GPIOs - hardwired LEDs are worthless.
>> Ability to tell what the MMC is doing, thus preventing you from
>> dorking it up: *priceless*
> Oh-oh.... Like a LED? What do you mean?
A pair of leds that could be driven by software would be invaluable for
normal use as well as debugging. A green light could be power, which
could be strobed when the system is put into a low power state or turned
off when put to sleep. An amber light that could be driven by the MMC
driver (or potentially other devices) to indicate activity.
To mount it, I would suggest mounting the LEDs to the immediate right of
the card slot, so the opening could be simply be extended toward the
middle of the case to expose them. That means you don't need a new
hole, just a bigger hole; this also does not significantly change the
embedded mechanical profile of the device.
They could be put under the card, but won't be as visible and
potentially could be impacted by the same kind of problems I brought up
with regard to C92A.