09:52 <cde> so I just sold my M1R3, but I'm wondering if I should do the NOR fix by replacing the reset chip?

09:52 <cde> (the new owner doesn't have electronics rework experience)

10:24 <lekernel> https://ssl.serverraum.org/lists-archive/devel/2011-October/002505.html

10:24 <lekernel> it's a bit complicated

10:34 <cde> isn't it just replacing the three-legged reset chip with another one?

10:35 <cde> oh right, I need to take 5V elsewhere

10:36 <cde> http://downloads.qi-hardware.com/people/werner/m1/nor/d8/u24-to-5V.jpg #looks doable :) just need to buy the right chip

10:37 <cde> lekernel: did you know that there is a new pink PCBs color? like http://www.grandideastudio.com/portfolio/jtagulator/

10:37 <cde> that would be very cool for mixxeo. also, consider adding rgb leds

10:46 <cde> lekernel: besides the NOR flash fix, what are the fixes you'd recommend doing?

11:20 <lekernel> mixxeo won't have a transparent case

11:21 <lekernel> case design is super late, essentially because finding a good industrial designer is a pain

11:21 <lekernel> actually, since last week, I've found one, except they are super expensive

11:22 <lekernel> (fixes) removing the ferrite beads, as wpwrak already explained

11:22 <lekernel> well those in the power supply are fine, but those between grounds aren't

11:23 <lekernel> it's easy fixes though

11:54 <lekernel> wpwrak, http://www.edn.com/design/automotive/4423428/Toyota-s-killer-firmware--Bad-design-and-its-consequences

11:55 <lekernel> think you might enjoy this article =)

11:56 <cde> thank you :)

11:57 <wpwrak> interesting .. never saw "benign" used as a verb ;-)

11:58 <cde> lekernel: so basically just bypass the beads on the 5V input?

11:58 <lekernel> cde, no, near the video-in chip

11:58 <lekernel> those on 5v are fine

11:59 <lekernel> I'm not sure if they do much actually, but they don't cause trouble

12:01 <cde> ok

12:01 <cde> so far, video in has worked fine for me. however I only tested it with the CCD on the green input

12:02 <wpwrak> the video bead causes ESD to run through the chip, crashing it. not recommended :)

12:05 <cde> oh. so I guess I was very luck and could have damaged it any time through ESD

12:05 <cde> but why would a bead cause ESD?

12:13 <wpwrak> cde: it doesn't cause it. it just makes it worse :) the ESD will find you, don't worry about that ;) there are also other, ESD-like events, such as mismatched potential. i found mine when connecting to ... i think it was the stereo. a little surge went through ground. the bead deflected it and instead if harmlessly dissipating into the ground plane, it went through the chip. the chip hated that :)

12:13 <wpwrak> luckily, it survived. had to power-cycle, though.

12:19 <wpwrak> (toyota) nice :) i'd actually worry a lot more about the "regular" bugs than about the extra safety bits.