On Thu, Jul 09, 2020 at 11:43:58AM +0100, Luke Kenneth Casson Leighton wrote:
On Thu, Jul 9, 2020 at 11:28 AM Pablo Rath pablo@parobalth.org wrote:
ah that's better.
ah ha! cancel that on the 1st one, that looks even on both sides, doesn't it?
Yes, looks even to me.
ok there's one more: a picture from the *underside* - actually *between* the PCBs (try to get some light in there). don't for goodness sake pry the cards apart, obviously you'll need to take the anti-static bag out.
whilst the no 4. photo showed that the pins from the *top* row are not showing, i.e. the Card was not inserted too low, this does *NOT* guarantee that the card was inserted TOO HIGH.
and you will find that out by VERY CAREFULLY inspecting *between* the PCBs. if the Card was inserted 1.5 mm too high, you will be able to see the bottom PCMCIA row of pins clearly.
BE CAREFUL ok?
I am extremely careful. I triple checked from all sides and especially from the *underside* and there are no pins visible. I tried to take a picture yesterday and today in good daylight, with and without camera flash, with and without additional lighting but I can't get a usable picture *between* the PCBs. I wish you could see through my eyes :) I think we have to trust in my assessment. I am *very* confident that the connection is correct.
from visual inspection from the front, it should also be obvious if the card has been inserted where the top row of pins has gone into the bottom part of the connector or vice-versa.
Visual inspection from the front looks good to me but is difficult to photograph with good light and correct focus.
If You Can See Pins You Got It Wrong.
I can't see pins anymore.
you need to check top and bottom. top looks good, bottom also needs checking.
Done like described above.
also, once inserted, place the anti-static bag *in between* the Card and the MicroDesktop PCB.
Is this for anti-static purpose or to add a bit of stability?
although it has that effect, it's there to protect against possible short-circuit. the top of the MD is lacquered, and there are no components, however why take the risk?
anti-static means that when handling - inserting the bag - you don't zap anything.
Do you fold your bag to fit the entire length of computer-card?
nonono, that would put pressure on the PCB and bend the connector. just slide it in gently in a U-shape.
Ok.
- SD-card ready / U-Boot
Tried to compile u-boot-sunxi [4] and make exits with "System not configured". So Luke, what did you use as config
it's on the wiki somewhere. it has been 5 years so i will be searching just as much as you would be.
Ok.
there should be some a20_defconfigs... sitemap... arse. no, let's try the git repo instead... http://rhombus-tech.net/allwinner_a10/boot/
AH! GOT IT: http://rhombus-tech.net/allwinner/a20/boot/
there you go.
Ah, yes. This is what I found and mentioned in my email. Thank you for looking it up and confirming. Will give it another try.
After a quick check it seems one can not create subpages from the online editor (only edit pages).
yes, this is standard practice. you create the link on the parent, first, then it creates a question-mark, then you get an edit link. if you know what you're doing you can manually create edit links :)
Thank you for the crash course. Worked... almost like... *magic*. I have created a subpage under a20 and will put everthing there and we can move individual sections later if necessary.
in case it wasn't obvious, thank you for this. pablo. i really appreciate you taking the time to get this sorted.
It is kind of obvious but still nice when explicitly mentioned. :)
So the next and last step hardware wise is to solder the UART connection to the micro desktop? Can I use standard pin headers?
kind regards Pablo