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2015-02-07 11:48 <DocScrutinizer05> wpwrak: ((battery is a bit tricky at the moment)) thought about asking? ;-)
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2015-02-07 12:24 <wpwrak> hmm ? all i do is available for review and i document my progress in quite some detail :) for example, here's the current battery issue: http://lists.en.qi-hardware.com/pipermail/discussion/2015-February/010811.html
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2015-02-07 12:26 <wpwrak> basically OLED's Vih(min) being quite high, higher than i tought, and i somehow missed that until now. so i need to rearrange the voltage domains.
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2015-02-07 12:32 <wpwrak> but first i'm checking whether my batteries are really still okay. wouldn't do to spend a lot of effort to solve problems that are just caused by dead batteries :)
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2015-02-07 13:34 <xiangfu> wpwrak: Hi. I just uploaded some pics [brd-back-close.jpg  brd-back.jpg  brd-front-1.jpg  brd-front.jpg  brd-two.jpg  brd-with-UBB-back.jpg  brd-with-UBB-front.jpg] to here: http://downloads.qi-hardware.com/people/xiangfu/anelok/tmp/
2015-02-07 13:34 <xiangfu> this time is small files.
2015-02-07 13:35 <xiangfu> I double make sure. the wire connect is correct. there is no short.
2015-02-07 13:35 <xiangfu> I think there are something wrong with my nanonote. trying the ubbctl now..
2015-02-07 13:36 <wpwrak> (photos) whee, nice ! thanks !
2015-02-07 13:37 <wpwrak> (nanonote) oh, did you disable the mmc driver ? echo jz4740-mmc.0 >/sys/bus/platform/drivers/jz4740-mmc/unbind
2015-02-07 13:37 <xiangfu> no.
2015-02-07 13:37 <xiangfu> :(
2015-02-07 13:37 <wpwrak> and if your kernel has an atben driver, then also  cd /sys/bus/spi/drivers/at86rf230; echo spi*.0 >unbind
2015-02-07 13:38 <wpwrak> okay, kernel and user space both trying to use the port at the same time may explain some issues :)
2015-02-07 13:39 <wpwrak> (pics) you have front and back reversed in the file names :)
2015-02-07 13:43 <xiangfu> Yes.
2015-02-07 13:45 <xiangfu> download the nanonote toolchain for compile ubbctl
2015-02-07 13:45 <wpwrak> hmm, and you may have placed too many of the resistors around the boost converter. e.g., if you're using the AAT1217-3.3, R4-R6 should be DNP. it looks as if they're populated
2015-02-07 13:48 <wpwrak> or is this just an optical illusion ?
2015-02-07 13:54 <xiangfu> nothing on F4-R6
2015-02-07 14:18 <xiangfu> wpwrak: http://dpaste.com/0VN8S25
2015-02-07 14:18 <xiangfu> ubbctl + swd.
2015-02-07 14:25 <wpwrak> DAT0 looks unhappy
2015-02-07 14:25 <wpwrak> seems to be shorted to ground in some way
2015-02-07 14:28 <xiangfu> hmm... I am sure the DAT0 means SWD_CLK is not shorted at UBB or Anelok.
2015-02-07 14:29 <wpwrak> the DAT0=1!0  says that the ben is trying to output a 1 but it reads back a 0
2015-02-07 14:31 <wpwrak> but you can check this by setting the outputs manually (with ubbctl) and measuring
2015-02-07 14:32 <wpwrak> and you may also want to check the supply voltage. if there's a problem somewhere, it may be too low, but still not low enough to just crash the ben as well
2015-02-07 14:32 <wpwrak> (though shorts usually crash the ben. so one has instant feedback ;-)
2015-02-07 14:32 <xiangfu> one of the board : the SWD_CLK between GND have 60ohm
2015-02-07 14:35 <xiangfu> Here is another board output: http://dpaste.com/0VMV98X
2015-02-07 14:35 <wpwrak> 60 ohm is quite low. if you short the probes via the board, how many ohm do you get ?
2015-02-07 14:38 <wpwrak> in any case, 60 ohm is too low. i measured for both SWD_CLK and SWD_DIO abour 7.8 MOhm if + is on SWD_* and 0 on GND, and about 27 kOhm if - is on SWD_* and + on GND
2015-02-07 14:39 <xiangfu> hmm... wait.
2015-02-07 14:39 <xiangfu> this device is not easy to understand. I borrow a Agilent U1252B.
2015-02-07 14:40 <wpwrak> results may be different with different meters (that was with a picotest m3500a, alas not the most exact device but my fluke is busy watching the batter discharge), but anything lower than at least a few kOhm is suspicious
2015-02-07 14:40 <wpwrak> similar to joerg's critter :)
2015-02-07 14:42 <xiangfu> ./ubbctl dat0=0: give me 0.0091v
2015-02-07 14:42 <xiangfu> ./ubbctl dat0=1: give m1 0.5xxxv
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2015-02-07 14:43 <xiangfu> ./ubbctl dat0=1: give m1 0.65xxv
2015-02-07 14:43 <xiangfu> s/m1/me
2015-02-07 14:43 <qi-bot> xiangfu meant: "./ubbctl dat0=1: give me 0.65xxv"
2015-02-07 14:43 <xiangfu> ./ubbctl dat0=1: give m1 0.5xxx ~ 0x65xxv
2015-02-07 14:44 <xiangfu> this one ./ubbctl dat1=1: give me 3.3V. I like 3.3 :)
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2015-02-07 14:45 <xiangfu> U1251B is expensive...
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2015-02-07 14:46 <xiangfu> wpwrak: have you saw my last message:
2015-02-07 14:46 <xiangfu> ~~~~
2015-02-07 14:47 <infobot> ARGH!!! STOP IT xiangfu!!!
2015-02-07 14:47 <xiangfu> ./ubbctl dat0=1: give m1 0.5xxx ~ 0x65xxv
2015-02-07 14:47 <xiangfu> but ./ubbctl dat1=1: give me a very stable 3.3V.
2015-02-07 14:47 <xiangfu> ~
2015-02-07 15:01 <wpwrak> yes, 3.3 V is good. 0.65 V suggests that there's a short. apparently not directly with ground but with some other pin
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2015-02-07 15:02 <wpwrak> (u1252b) yeah, these agilent/keysight meters are a bit overpriced in my opinion. i'd get a good lab meter. not portable, but much nicer to use in the lab. and you don't have to worry about batteries ;)
2015-02-07 15:03 <wpwrak> #s/lab meter/bench meter/  that's the correct term
2015-02-07 15:04 <wpwrak> the good ones are even more expensive, but if you're going to spend many hundreds of dollars on a meter, you may as well go the extra mile and get a really good one
2015-02-07 15:04 <xiangfu> YEAH: http://dpaste.com/24MHQ07
2015-02-07 15:05 <wpwrak> the 0.65 V may be a short between DAT0 and some pin that outputs a "0". maybt try CLK=1 and see what happens
2015-02-07 15:05 <xiangfu> hmm... he sugest me this one: F179C .
2015-02-07 15:05 <xiangfu> FLUKE. expensive too. :)
2015-02-07 15:05 <wpwrak> if it's not that, things will get a bit more complicated. you could then test all the other pins of the KL26 and see if there's another one that has 0.65 V
2015-02-07 15:06 <xiangfu> wpwrak: it is the my taobao UBB soldering problem.
2015-02-07 15:06 <xiangfu> first try: http://dpaste.com/2TQCYQE
2015-02-07 15:06 * xiangfu again
2015-02-07 15:07 <xiangfu> second try: http://dpaste.com/2F2K93R
2015-02-07 15:07 <wpwrak> (fluke) maybe this ? http://www.testequipmentdepot.com/fluke/dmm/8808a.htm
2015-02-07 15:07 <xiangfu> flashed: http://dpaste.com/0JKC8ZH
2015-02-07 15:08 <xiangfu> what should I do next?
2015-02-07 15:08 <wpwrak> (fluke) i have this one (the 8808a didn't exist back then): http://www.testequipmentdepot.com/fluke/dmm/8845a.htm
2015-02-07 15:08 <wpwrak> lemme check ...
2015-02-07 15:08 <wpwrak> (flashing) excellent ! it's normal that it takes a few tries
2015-02-07 15:09 <wpwrak> you could now connect USB and see if it enumerates
2015-02-07 15:09 <wpwrak> when the led goes on after you connect usb, it's probably happy
2015-02-07 15:09 <wpwrak> ah, and i would disconnect the ben first. just in case :)
2015-02-07 15:11 <wpwrak> and if it enumerates, you can then "make dfu" to flash the firmware
2015-02-07 15:12 <wpwrak> after flashing the firmware, the led will go off. you'll then have to wait for about 30 seconds and then you should be able to operate the slider
2015-02-07 15:12 <xiangfu> connect usb: nothing happen on kernel msg
2015-02-07 15:12 <wpwrak> will be a bit tricky without a case but you should at least get some response
2015-02-07 15:12 <wpwrak> okay, not so easy then :)
2015-02-07 15:13 <wpwrak> with usb connected, please check that the voltages are right: especially that VBUS > GND :)
2015-02-07 15:13 <wpwrak> (there is a big VBUS pad right next to the usb connector)
2015-02-07 15:14 <wpwrak> vbus should be roughly 5 V. if it's very different, somethign is wrong.
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2015-02-07 15:17 <xiangfu> VBUS: -0.15v
2015-02-07 15:18 <wpwrak> eeew
2015-02-07 15:19 <wpwrak> hmm. are you sure you got the right type of conenctor ? :)
2015-02-07 15:19 <wpwrak> yours don't look reversed
2015-02-07 15:20 <wpwrak> in a reversed connector, the two little slots should be at the bottom
2015-02-07 15:20 <wpwrak> not sure if there are reversed connector that have them on the other side
2015-02-07 15:21 <wpwrak> are your connectors AB or B ?
2015-02-07 15:23 <xiangfu> hmm... -4.5V
2015-02-07 15:23 <wpwrak> how to identify a reversed connector: the little plastic inside the connector should be close to the PCB, with the contacts facing away from the PCB
2015-02-07 15:24 <wpwrak> that looks even more like the wrong connector
2015-02-07 15:25 <wpwrak> (reversed = what anelok needs)
2015-02-07 15:25 <xiangfu> Yes. wrong connecter...
2015-02-07 15:26 <wpwrak> let's hope you have a good electronic shop nearby :)
2015-02-07 15:26 <wpwrak> well, at midnight, it may not be open, though. or do you have all night electronics shopping in china ? :)
2015-02-07 15:28 <xiangfu> not in Beijing. maybe in Shengzhen.
2015-02-07 15:28 <wpwrak> (regarding the usb connector, i hope to eventually replace this with a regular - non-reversed - connector. but so far i haven't been able to find a nice way to do this. layout gets very tricky.)
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2015-02-07 15:31 <wpwrak> okay, what we can do now is ... a) wait until you can get right kind of connector, b) you can try to make a reversed cable, c) you could try to flash the application via SWD. but that's a bit messy because SWD is so unreliable and the application is larger than the boot loader
2015-02-07 15:32 <xiangfu> let me try the SWD.
2015-02-07 15:33 <xiangfu> what is the command for reflash teh application?
2015-02-07 15:33 <wpwrak> first you have to construct a combined binary
2015-02-07 15:35 <wpwrak> this should do the trick: dd bs=16k conv=sync if=boot-2014.bin of=combined.bin; cat anelok-2014.bin >>combined.bin
2015-02-07 15:36 <wpwrak> then flash with    swd combined.bin
2015-02-07 15:39 <wpwrak> hmm. my statistical estimates suggest that it may take something like 80 attempts before swd will work for somethign this large, given that it took you three attempts with boot-2014.bin. well, you can use a while loop :)
2015-02-07 15:40 <wpwrak> while ! ./swd combined.bin; do : ; done   # then take a tea or a nap ;-)
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2015-02-07 15:43 <xiangfu> a lot of access error
2015-02-07 15:43 <wpwrak> yes, there's something wrong but i don't know what. i already spent a lot of time trying to figure out what may be the problem :-(
2015-02-07 15:44 <xiangfu> finished one.
2015-02-07 15:44 <wpwrak> maybe a fresh pair of eyes will find it in minutes ... ;)
2015-02-07 15:44 <xiangfu> successed one of them
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2015-02-07 15:48 <wpwrak> excellent ! :)  now .. swd -r to power and reset anelok
2015-02-07 15:48 <wpwrak> and then we'll see if it works :) (i've never tried this mode of operation myself)
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2015-02-07 15:51 <wpwrak> yup, should work. just booted one of mine with  ./swd -r
2015-02-07 15:52 <wpwrak> ah, but now i have to leave. people trickling in.
2015-02-07 15:52 <xiangfu> yes. now I am doing 'while'... :)
2015-02-07 15:54 <xiangfu> have to sleep.
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