<wpwrak>
kristianpaul: (uart to spi) there should be plenty of chips in a 4 mm qfn that can do this
<kristianpaul>
yeah just need searchi as always
<wpwrak>
(lcm) ah, how to you release the hinge ? do you have to open the display case for this ?
<Ornotermes>
many avr tiny have USI(Universal Serial Interface), so they can't use uart and spi at the same time
<kristianpaul>
:/
<kristianpaul>
wpwrak: yes
<wpwrak>
Ornotermes: you can do the SPI just by bit-banging. if the MCU isn't doing anything else but copying between UART and SPI, it has plenty of time for that.
<wpwrak>
kristianpaul: aah ! so that's the secret ! thanks !
<wpwrak>
grabs a knife
<kristianpaul>
:D
<kristianpaul>
wpwrak: there are some screws but you need the knife first, be carefull
<Ornotermes>
wpwrak: ofc :) i forget about bitbanging some times :P
<kristianpaul>
reads about bitbanging
<emeb>
there's a bitbang SPI driver in kernel already - just tell it what pins to use and what backend to connect to
<emeb>
has used spi on beagleboard & mini2440
<kristianpaul>
oh
<kristianpaul>
emeb: remenber the module name?
<Ornotermes>
spi_gpio if i remember it right
<kristianpaul>
man linux is so big and full of features :)
<emeb>
deep and wide.
<Ornotermes>
btw, im trying to write a tetris game for ben in python+pygame
<wpwrak>
emeb: very good point. of course, that almost makes things too easy :)
<emeb>
hasn't used the bitbang driver for anything except the /cs line
<emeb>
and I use the spidev backend (frontend?)
<emeb>
works a treat
<wpwrak>
emeb: i played a bit with it for sdio. before finding the sdio interface bugs in the silicon that affected only one or two very specific revisions of the samsung 2442.
<wpwrak>
well, about a month or two before finding these. it's not the kind of thing you look for in the first place ...
<emeb>
hates undocumented silicon features
<emeb>
I wonder if there's something wrong with SPI DMA on the s3c2440 - the spi driver doesn't use DMA and it's slooooow
<wpwrak>
emeb: there were various dma issues in the 244x series. not sure if this is one, though. some of the drivers are just a bit under-developed.
<emeb>
wpwrak: makes sense.
<larsc>
in the latest iteration of the driver there is dma support
<emeb>
larsc: what rev is that in?
<larsc>
HEAD ;)
<emeb>
guess I asked for that :P
<larsc>
i don't know when it got in but 2.6.34 had support for it iirc
<emeb>
ok - .34 is a good start
<emeb>
thanks
<emeb>
gotta see if I can backport that to the .32 kernel that comes with the mini2440...
<emeb>
.34 has FIQ-based pseudo DMA as a config option, not real DMA
<wolfspraul>
must the middle of the night there, no?
<gbraad>
in europe ? yes, 5am
<wolfspraul>
gbraad: OneBeep is cool, nice link - thanks
<wolfspraul>
how are things on your end?
<wolfspraul>
where is Fedora on NanoNote? t-shirts? etc. :-)
<gbraad>
standard radio, also pushed it to jon.
<gbraad>
fedora on mips is at F13, on nanonote stalled now. still have issues with the build infra
<wolfspraul>
Yanjun Luo is pretty cool on the cable, but we need to teach him the slow culture a bit :-)
<wolfspraul>
no email attachments, check it in in a nice repo, make sure author and license is all attributed correctly, and so on
<gbraad>
have not been able to do the shirts due to budget of fedora
<gbraad>
exactly. I told him to use a repo, but not done yet.
<wolfspraul>
but seems to be a really cool guy
<wolfspraul>
he can use the qi projects server
<gbraad>
he is... too bad for the arm project he does ;-)
<gbraad>
i had the same idea. but open source is still young in China
<wolfspraul>
I am planning to get some scripts going on that server that can auto-generate PDF schematics etc. for kicad files...
<gbraad>
(and misunderstood)
<wolfspraul>
(but not there yet)
<wolfspraul>
misunderstood? you mean free software?
<wolfspraul>
let's meet with Yanjun asap
<gbraad>
had some discussion with jon about the OSHW
<wolfspraul>
I want to give him some higher-level objectives and see whether he can take it.
<gbraad>
open source in general is an issue in China. not completely understood. but already got in touch with some key people. have been very busy with this.
<gbraad>
seems like a good idea
<wolfspraul>
he - good luck
<wolfspraul>
don't try to educate china, my advice
<wolfspraul>
waste of time - oldest culture (i.e. slowest/never in changing) - there's a reason...
<gbraad>
i don't educate. but learn and see how we can adopt
<wolfspraul>
we can only use them, and offer our true advice and help if someone wants to really understand the free software culture
<wolfspraul>
that's gonna be a 1 in a million type of person
<gbraad>
if you meet the right people, they are listening... and i did meet some of them. ;-)
<wolfspraul>
sure
<gbraad>
wolfspraul: what is your vision on the OSHW?