IRC log of #cubox of Fri 23 Dec 2016. All times are in CET < Back to index

08:39 topi` the holidays are about to start... but the projects won't wait :(
08:39 topi` jnettlet: would you think SERDES can be used to reconfigure the SIM card used on-the-fly?
08:40 topi` there are 2 sets of SIM signals on the CF Base (and CF pro as well)
08:40 jnettlet topi`, those are hardwired to their respective connectors as per the spec.
08:41 topi` OK so only that card in that very same slot can access the signal?
08:41 jnettlet correct
08:41 topi` but if it is a WiFi card, then my bet is that it won't touch those signals
08:41 topi` so maybe a few jumper wires could do it... ;)
08:42 jnettlet yes, you could probably figure something like that out
08:42 topi` so basically also the M.2 slot on CF Base could receive a 4G modem?
08:42 jnettlet yes
08:43 topi` good news
08:49 topi` jnettlet: my guess is, if we make a hardware switch that switches between the SIM0 and SIM1 , we cannot just use jumper wires because at any one time, one of those SIMs should *not* receive +5V at all
08:50 jnettlet topi` correct you will need to switch all the signals at once
08:50 topi` so, a better thought would be to create a small daughter board, that seats 2 x SIM, and there is a mechanical switch to feed +5V to one of them, exclusively
08:50 topi` and since there is an empty space for the SIM connected to M.2, that would be a suitable place for such a daughter board
08:50 topi` either directly mounted, or via wiring
08:51 jnettlet I am pretty sure such a device exists
08:51 jnettlet I have seen them for mobiles
08:53 jnettlet http://www.simore.com/en/multi-dual-sim-adapter-case-4g-iphone-6-x-triple-6.html
08:54 jnettlet They make lots. http://www.simore.com/en/dual-sim-card-adapter/dual-sim-3g.html
08:57 topi` :D
08:57 topi` simore.com, that's a suitable name
10:55 topi` OK I think we have it all now, so let's start courting the customer :)
10:58 jnettlet topi`, good luck. and merry christmas
10:59 jnettlet or happy holidays
11:02 topi` I'll survive :) the children are exstatic
11:02 topi` this is the darkest time of the year in the northern hemisphere, so not very friendly to brain chemistry
11:03 topi` I guess I'll just increase my chocolate intake :)
11:18 topi` we'll get back in business in January :)
11:20 jnettlet topi`, yeah. DK is only at about 6 hours of daylight each day at this point.
12:51 topi` I had to revise my plans. It seems the M.2 slot in CF Base cannot take usb peripherals, just PCIe and SATA
12:51 topi` the connector is of type M
12:51 topi` where notched pins are 59-66
12:52 topi` oh, I was looking at CF Pro schematics
12:54 topi` oddly enough, the UIM signals and all do get routed to the M.2 in the Base model...
12:55 topi` oh it explicitly says "M.2 model B" there, I think that settles it
12:55 topi` can use LTE modems there :)
13:03 topi` I just realized something interesting... since the Schematics for Solid-run products are available, it's entirely possible to actually fix the boards if something gets broken
13:03 topi` this is totally not the case for most electronics today
13:04 topi` I'm thinking of some big clients here who might want to cling into the same HW for 10 or 20 years
13:07 jnettlet Well most are chips are industrial grade so 7 years support from the soc manufacturers