14:28 <ysionneau> Anyone interested in a M1R4 board?

14:29 <ysionneau> if ~5 people are interested I might launch a kickstarter campaign

14:29 <ysionneau> if if ~10 people ask for one, I think we could run a batch

14:30 <ysionneau> hoping to achieve something like 700-800 EUR unit price

14:30 <ysionneau> it seems 2 people are interested according to recent emails on the Mailing List

14:31 <lekernel> ysionneau, 3 -> https://twitter.com/ramataupia/status/393401942007115776

14:32 <cde> ysionneau, I have a spare M1R4 I don't use. I can give it to you

14:32 <lekernel> I wonder what happened to the remaining M1/Nanonote stock at Sharism ...

14:33 <ysionneau> yeah ...

14:34 <ysionneau> cde: I think there are people interested in buying such a board

14:34 <ysionneau> you could sell it very easily

14:35 <ysionneau> is it really a R4 ? :o I thought R4 never got manufactured

14:35 <lekernel> don't give it away. it encourages drawerware.

14:35 <cde> I'm quite unsure the exact revision. I bought it in august 2011 at the sharism store

14:36 <ysionneau> must be R2 or R3

14:37 <ysionneau> cde: are you on the milkymist mailing list ?

14:38 <cde> I used to be, but I canceled my gmail account

14:38 <ysionneau> oh

14:38 <cde> I can tell you the exact revision at home tonight

14:45 <ysionneau> ok cool :)

14:45 <ysionneau> cde < I asked about the ML because someone is asking about buying a M1 board :)

14:47 <cde> oh

14:48 <ysionneau> on this thread: https://ssl.serverraum.org/lists-archive/devel/2013-October/003464.html

15:21 <wpwrak> r4 was never made and i think there may be about one or two r3.5 (r3 with some r4 rework) in the world. (i have one. not sure if adam made one for himself, too)

15:22 <wpwrak> ysionneau: if you make new board, you may want to include at least the reset fix. else, you still have the NOR corruption problem.

15:23 <ysionneau> that's why I mentioned M1R4

15:23 <ysionneau> on irc

15:23 <ysionneau> sebastien told me about it

15:26 <wpwrak> the whole m1r4 design has quite a lot of changes compared to m1r3. so it would be a little risky to try to make it. of course, it's better, too, and it has a lot of pretty LEDs ;-)

15:26 <ysionneau> hum hum

15:27 <ysionneau> I would only be interested in very minimum risk

15:27 <wpwrak> ah, and as far as i know, wolfgang sold all or as good as all of his m1r3 stock

15:27 <ysionneau> just doing what we already did

15:27 <ysionneau> what we know works

15:27 <ysionneau> so maybe just R3.5 (R3 with the NOR corruption fix)

15:29 <wpwrak> that would be m1r3 with the reset fix and i think r3 also had those beads/inductors that forced ESD to go through chips, causing pretty crashes and hangs. (solution: just connect the ground planes under the respective chips, without a separating inductor/bead)

15:29 <wpwrak> yes, and the beads (Lsomething)

15:31 <ysionneau> ok we need to think a little bit about what to do exactly to minimize risk but implement fix we already know work

15:31 <ysionneau> I will get back to you later :)

15:32 <wpwrak> yeah, the fixes are pretty simple. if all else fails, you can even do them as rework.

16:03 <lekernel> wpwrak, well at least the r4 flash fix made it into mixxeo (and I haven't seen any flash issue so far)

16:54 <GitHub84> [migen] sbourdeauducq pushed 1 new commit to master: http://git.io/UiO9_g

16:54 <GitHub84> migen/master 892c12b Sebastien Bourdeauducq: flow: add AbstractActor busy signals

19:03 <ysionneau> 18:03 < lekernel> wpwrak, well at least the r4 flash fix made it into mixxeo (and I haven't seen any flash issue so far) < that's really good news :)

21:11 <ysionneau> too tired to send anything this evening, I hope I will have some time tomorrow to send a sum up of what could be done for a possible new batch of M1 boards (if enough people interested)

21:11 <ysionneau> gn8!