<wolfspraul>
Adam thinks he found the first root cause of our rc3 yield/testing problems, in the form of fake TI parts :-)
<wolfspraul>
about 1/3rd of fake parts mixed into the reel
<wolfspraul>
bah
<rejon>
yeah
<rejon>
good to have a narrative intro and then the bullet points are good
<wolfspraul>
rc4 sourcing will use digikey much more, maybe I start boomifying the bom a little
<rejon>
we can call it ChangeLog
<rejon>
:)
<rejon>
QiLog
<rejon>
yeah, i can help push it out today
<wolfspraul>
rejon: not sure about log. that implies that you can read it later.
<wolfspraul>
no no, wait
<wolfspraul>
it's not finished yet
<rejon>
i know
<rejon>
if you want to write something up top, good
<rejon>
we can also just have as a long list and encourage others to spread it by writing something up top
<wolfspraul>
we need to rethink the news approach anyway
<rejon>
above the list
<wolfspraul>
we have to make it 'news' that new software is released for the Ben or m1
<wolfspraul>
we cannot just wait until our news are factually so irresistible that someone just has to report about them. that's crazy.
<wolfspraul>
I wanted to wait with spending a seriously bigger amount of time on this again until after I have m1 in stock.
<wolfspraul>
which is real-soon-now
<wpwrak>
wow. fake parts. lovely.
<wpwrak>
make sure you mention the distributor :)
<wolfspraul>
bought in Shenzhen. but it's not easy to blame, or rather to draw the right conclusions.
<wpwrak>
well. someone's making a few cents, knowing that this costs you hundreds of dollars. it's not too hard to draw conclusions from that :-)
<wolfspraul>
first it's sad, I waste a couple more thousand USD and a few weeks delay. ok. got over that.
<wolfspraul>
then...
<wolfspraul>
boom is the right idea
<wolfspraul>
I love boom.
<wolfspraul>
it's so right
<wolfspraul>
we have sourced all/most parts of the jtag-serial run with boom (digikey), we should try the same with m1, asap
<wolfspraul>
no, drawing conclusions is not easy
<wpwrak>
(boom) ah yes, one of these days i'll have to teach it tape and reel ...
<rejon>
ok yes, every news item should be important
<wolfspraul>
in hindsight vision is 20/20, that is easy to agree on
<rejon>
its hard to have so much though for people to grab onto
<rejon>
esp. news writers
<rejon>
not like M1 released
<wolfspraul>
but I can tell you endless individual items where you have to use different sourcing approaches to be successful
<rejon>
or nanonote has wireless
<wolfspraul>
like we had terrible problems with the ethernet connector
<wolfspraul>
and I ended up paying 8 USD for each one
<wolfspraul>
not nice
<wolfspraul>
on rc3 we have a high quality Taiwan Ethernet connector that costs 1.10 USD
<wolfspraul>
there are many things that are simply unavailable on digikey, and maybe always will be
<wolfspraul>
you remember marcan the other day with his galvos...
<wolfspraul>
touch panels
<wolfspraul>
lcms
<wolfspraul>
some parts have high moq/lead-time on digikey
<wolfspraul>
but anyway. boom is the right thing.
<wolfspraul>
digikey (and competitors) are probably the best choice for any part that they have stocked in quantity
<wolfspraul>
if digikey stocks 1000 or more of something, sourcing it there is a safe bet, economically and quality-wise
<wpwrak>
and once you make enough money to hire some muscle, you may want to pay whoever sold you those fake parts a friendly visit :)
<wolfspraul>
no, all fine
<wolfspraul>
I know how this happens
<wpwrak>
;-)
<wpwrak>
once :)
<wolfspraul>
the problem is on my end, as a manufacturer I need to be good on sourcing
<wolfspraul>
'good' can mean many different things, depending on part and other circumstances
<wolfspraul>
we should make a sourcing guide too, it could help many people
<wolfspraul>
you cannot have it all ways, I see the responsibility for buying this reel 100% on my side
<wolfspraul>
such parts should have been sourced from digikey
<wolfspraul>
they would even have been cheaper, as we paid too much again :-) 77 cents!
<wolfspraul>
at digikey it's 10-20 cents depending on quantity
<wolfspraul>
wpwrak: can boom be extended to schmitt-triggers, or they have too many parameters?
<wolfspraul>
I mean to automatically pick one :-)
<wolfspraul>
what I could do about this reel indeed is to try to follow back into the supply chain
<wolfspraul>
I want to visit the crappy little factory that makes fake TI parts and mixes them into reels of real TI parts
<wolfspraul>
:-)
<wolfspraul>
since I'm one of their customers :-)
<wolfspraul>
actually this could even work, if I spend the time for such an investigation. there's a huge spot market and all sorts of things are happening there.
<wolfspraul>
but I rather focus on the good side
<wpwrak>
(schmitt-trigger) you'd identify them by gate type, not really by parameter. you could add a parameter that describes the gate, but that may get confusing
<wolfspraul>
octopart is very bad, werner's boom is 100 times better
<wpwrak>
roh: nice part ;)
<wolfspraul>
the idea of boom is to start with simple passive stuff, resistors, capacitors
<wolfspraul>
and then connect it to distributors with real stock
<wolfspraul>
like digikey, mouser
<roh>
wolfspraul: hm? i thought octoparts is only a meta-searchmachine listing all sellers?
<wolfspraul>
yes but it's a mess
<wolfspraul>
I think we should start with quality distributors first, and factor in their stock levels
<wolfspraul>
octopart throws together companies with totally different business models
<roh>
wrong data? it whats the issue.. i was thinking of only searching via it. deciding stuff in boom
<wolfspraul>
nothing in stock, high moq, long lead-times
<roh>
octoparts doesnt sell parts themselves as far as i know
<wolfspraul>
sure I search with octopart too, it's better than google for sure
<wolfspraul>
but it's also not very different to google :-)
<wolfspraul>
roh: at present, boom will not consider shipping costs or lead-times, I think
<wolfspraul>
wpwrak: does it consider MOQ and stock-level? I forgot ;-)
<wolfspraul>
roh: boom will also automatically look at volume discounts and pick the volume that is cheapest for the upcoming run
<wolfspraul>
basically it helps remove a lot of tedious work from sourcing
<wolfspraul>
one of the next planned features was to add support for reels and digi-reels (@digikey) - maybe trays later
<roh>
well.. cheap isnt always good as we learnt ;)
<wolfspraul>
where did we learn that?
<roh>
ah. right.. you didnt even buy it cheap
<wolfspraul>
:-)
<wolfspraul>
sourcing is hard, I have no illusions
<roh>
i just checked the U20 on octoparts.. looks like theyre all there
<roh>
just lots of variants of that thing...
<wolfspraul>
boom has the exact right approach to help reduce costs significantly, and increase quality
<roh>
i guess it doesnt matter if you buy at dk mouser or farnell.. but there are seldomly the cheapest
<wolfspraul>
imagine you have a free hardware project and with a few clicks you can have a complete shopping list for digikey - very cool I think
<roh>
i wonder whats the difference between the 80cent and the 11cent variant in the same case
<wolfspraul>
nah
<wolfspraul>
see that's the thing. digikey may very well be the cheapest. or mouser, or farnell.
<wolfspraul>
the problem is there are huge databases
<wolfspraul>
how to efficiently scan them? software!
<roh>
exactly.. i was just thinking of using the advantage that somebody already did the gruntwork to unify access to all these distributors
<wolfspraul>
and you think octopart did that?
<wolfspraul>
me too, a while back :-) until I just tried to use them, and then you see it's all wrong.
<roh>
yes. they started with scaping and later made deals with the distros remaining
<wpwrak>
wolfspraul: yes, stock and MOQ (and quantity discounts). but not lead time.
<wolfspraul>
they want to be like google, just a little more specialized
<wolfspraul>
roh: all wrong, really. does not match with what I've learnt in sourcing at all.
<roh>
also removed some unwilling distributors who threatened them
<wolfspraul>
boom is the right approach, start with the bom out of kicad, try to parameterize. start with the cheapest components, connect to databases of known high-quality distributors.
<wolfspraul>
their api will only obfuscate the underlying reality
<wolfspraul>
they are not adding any value imo
<wolfspraul>
boom builds the shopping list out of the bom which is out of kicad
<roh>
it will add the value of them keeping it up to date with changes at all distributors for you.. abstraction.
<wolfspraul>
exactly what I don't want in sourcing :-)
<roh>
also.. nasty legal trouble if you scrape too much
<wolfspraul>
I want to factor in reliable shipping and lead times as well, in addition to reliable MOQ and stock levels :-)
<wolfspraul>
I expect zero legal trouble for a tool like boom, in fact we should ask digikey to sponsor it.
<roh>
wolfspraul these you can cherry pick later when you have a list of selections done
<wolfspraul>
no it won't work, it's a crazy amount of work
<wolfspraul>
I'm a boom believer
<wolfspraul>
:-)
<wolfspraul>
octopart was my sinner times
<wolfspraul>
I can check again, but I doubt their model will fly. we will see. I don't understand what value they add for sure.
<wolfspraul>
if I were digikey I would indeed not like something like octopart
<wolfspraul>
but I wouldn't fight it either, just ignore. it's like google in the end.
<wolfspraul>
ok, maybe block their IP if it gets too bad :-)
<wolfspraul>
the reason I would not like it is not because they allow comparison with others, but because I would be worried that the quality of my service is ruined by them.
<wolfspraul>
let's say digikey's stock numbers are real, and the stock numbers of some other 'website' are fake
<wolfspraul>
ok?
<wolfspraul>
who will audit the other distributors?
<wolfspraul>
octopart?
<wolfspraul>
no way
<wolfspraul>
I don't want to be in that pool, as a quality distributor with real stock.
<roh>
wolfspraul: they have some program running it seems to make sure they get real data
<wolfspraul>
'real data', ha ha
<wolfspraul>
I should setup a website just to proove my point. little 'incoming order redirection' business
<roh>
check their blog. seems the users put quite some pressure on the distributors to get listed after delisting themselves.
<wolfspraul>
you mean octopart users want to see all distis? for sure
<wolfspraul>
I use it too
<wolfspraul>
quick and dirty overview
<wolfspraul>
but useless for sourcing
<wolfspraul>
I tried to tell you why if I were at digikey, I would not like it.
<wolfspraul>
because for example take stock level
<wolfspraul>
who audits the others?
<wolfspraul>
nobody!
<roh>
wolfspraul: why? it means more business coming your way.
<wolfspraul>
so that means my stock levels, let's say they are real, are compared with fake stock levels of my competitors
<roh>
wolfspraul: octopart will. because its in their interrest.
<wolfspraul>
not fair
<wolfspraul>
I don't want to be in that market/pool.
<wolfspraul>
no they cannot
<wolfspraul>
I highly doubt that
<wolfspraul>
no distributor would let octopart people audit their warehouse
<roh>
for me for example dk is pain. delivery times, buerocratic madness, shitty payment foo etc.
<wolfspraul>
which ones do you like?
<roh>
means for me boom is useless as long as it doesnt list real european sellers. not us sellers with a bad customercenter only in europe
<wolfspraul>
fully understood. that's valuable. so which ones do you like?
<roh>
i get most of stuff from segor, rs components, seldomly farnell, lots of conrad and voelkner (really fast shipping)
<wolfspraul>
well great :-)
<wolfspraul>
a lot of good work for boom
<roh>
i use mercateo a lot, but its not that well done for electronic parts, more for 'devices'
<wolfspraul>
the boom approach is to start with cheap parts that are relatively easy to parameterize
<wolfspraul>
that will clear out your bom a lot, and leave you with a much smaller set to source 'manually'
<roh>
especiually because they do central billing. not having to have accounts in N vendor shops rocks.
<wolfspraul>
sure
<wolfspraul>
so you use octopart just for general searching as well, it sounds
<wolfspraul>
like google, just a bit more specialized
<wolfspraul>
it's not a sourcing tool
<roh>
i get one bill per order, even if ther are multiple distros in play that way
<wolfspraul>
one bill from octopart?
<roh>
i'd like to use octoparts more but its currently too us centric for me
<wolfspraul>
who is giving you one bill for multiple distros?
<roh>
wolfspraul: mercateo. i dont order at conrad or so directly. i search and order via mercateo (b2b sap driven platform) and get one bill, and it optimizes for cost over the distros which are in direct competition
<wolfspraul>
ah nice
<wolfspraul>
maybe mercateo is doing this the right way :-)
<wolfspraul>
to be honest I don't understand octopart's model, so I should not qualify it either. they probably have a plan, and/or it may be changing over time as they learn. I don't know, I am not following closely.
<roh>
helped me a lot. sadly its often not as fast to use as i'd like and there are sometimes 20 very similar or identical things which it doesnt get is 'one' and thus optimizing still needs some handywork to be perfect
<wolfspraul>
I can imagine that it's cracking quite a bit, with distis being kicked out, kicking out themselves, kicked back in, etc. etc.
<wolfspraul>
that's not surprising :-)
<roh>
e.g. if ordernumbers for different packagesizes do'nt get put into the db right to match one product or so
<wolfspraul>
yep
<roh>
a.. forgot some important sellers (non-mercateo) reichelt electronics and pollin
<roh>
maybe i'd use digikey if they would do 24h shipping for 4E/package
<wolfspraul>
also depends on where their warehouses are
<roh>
and dont bury me with import foobar paperwork and credit contracts
<wolfspraul>
for example mouser has a warehouse in HK or Taiwan, so it's great in Taiwan
<wolfspraul>
well, exactly. those details are important!
<wolfspraul>
if you talk about 'sourcing' as in 'getting the real stuff fast and cheap'
<wpwrak>
roh: digi-key are actually among the easiest to order internationally from :)
<roh>
wpwrak: maybe if you are already at the end of the world ;)
<roh>
wpwrak: as a european without a credit card its pretty annoying. they cant do timely bank transfer or even 'einzug' for some reason to its slow
<roh>
and if you order a beagleboard you get paperwork asking if youre a terrorist and why you import us stuff
<wolfspraul>
'without credit card' is unimaginable in the us
<wpwrak>
roh: duh. why don't you add other interesting constraints ? like payment only in cash, with reichsmark ? ;-)
<wolfspraul>
I remember seeing tourists stranded and crying, whole families, when finding out that they cannot get the rental car that was fully prepaid in New York, because the computer system insists on a credit card for insurance reasons
<wolfspraul>
well, roh has the right to not like them and prefer others, for his reasons
<wpwrak>
don't digi-key also accept bank transfers ?
<wolfspraul>
but he is doing exactly what I think octopart will be weak in, he is zooming in on particular details of an actual purchase transaction
<wolfspraul>
as a US business I can imagine that they see little additional sales in the 'have no credit card' market
<wolfspraul>
maybe only for large businesses, setup a contract etc.
<wpwrak>
wolfspraul: i think they do handle "no credit card", too. but of course, then you have to wire the money first.
<wolfspraul>
I'm just explaining the US perspective to roh.
<wolfspraul>
not that he has to accept it, but that's their perspective, so yes, roh goes with German distis and it's great
<roh>
wolfspraul: well.. outside of the 3rd world there are well working debit systems. even in taiwan i got money with it. no reasons for prehistoric kludges working like electronic versions of a 'cheque'
<wpwrak>
wolfspraul: or the alternative would be to have a credit account with digi-key themselves, yes. of course that's even more difficult.
<wolfspraul>
I didn't ask you to accept it, or like it. just explaining :-)
<roh>
i mean.. i have _never_ filled in a cheque. nobody does that.
<roh>
most people in germany only have visa or mastercards if they are for free and for ordering outside of europe via the internet or on the road. in germany there isnt any need for a creditcard. everybody takes debit and is happy. it gurantees you get your money as a merchant (when using card and pin, which basically every store does)
<wolfspraul>
yes but in the US it's not like that, and digikey is a US company
<wpwrak>
roh: now you just have to convince digi-key to move to germany and your problem is solved ;-)
<roh>
and its not ordering only from inland. its ordering preferrably inside europe. simply because money moving is easier and does cost not a cent (by law)
<roh>
wpwrak: well.. they got a german webshop. just no good deals (18E shipping if you order <65E)
<roh>
wpwrak: mostly ordering from the us is the same level or annoyment and work as ordering directly from china
<wpwrak>
roh: only EUR 18 ?? wow.
<roh>
wpwrak: well.. the market level is usually 4-6E shipping below 100E value. time is 2-3 working days, for some 24hours for stock parts
<wpwrak>
here it's USD 40, and that's dirt cheap in comparison to what shipping costs at other places
<wpwrak>
"market level" = within germany, i guess
<wolfspraul>
does anybody know where digikey has warehouses?
<wolfspraul>
all in one place?
<roh>
wpwrak: lets make it central europe. france and similar isnt much more expensive (maybe 7euros or so
<roh>
wolfspraul: from what i can read the stuff gets sent from texas to cologne and then to the customer. no real stock here. only handling
<wolfspraul>
all I've ever seen at distis was one number for stock-level, as if they have 1 warehouse
<roh>
hm. i should talk to the us hackers on the camp if they know people at octoparts.. would like to meet them and pick their brains.
<wolfspraul>
I think any sourcing tool must be flexible and allow the user to override preferences. just the direction boom is taking.
<wolfspraul>
because the quality of those parameters may also change over time.
<roh>
after all.. they are in the middle of something we all need somehow in some way
<wolfspraul>
say digikey gets new management, and they decide to work a little differently with the stock levels in the database, to squeeze out more profits.
<wolfspraul>
who will notice? how will customers react? it must be in the hands of those making the purchase decisions (the ones doing the sourcing)
<wolfspraul>
exactly like roh says he has 'his' distributors that he trusts and uses for this or that reason
<roh>
wolfspraul: my trust is not easy to earn. that only works by good service and not making complications. and if they happen there needs to be a will to fix stuff fast and make it not happen again.
<wolfspraul>
roh: yes, and they are in a very bad spot. because they deal with a lot of data without doing actual sourcing :-)
<wolfspraul>
they can try to build feedback channels, but it will be all a quality mess
<roh>
means if some distro fucks up the same twice i will not use them again if possible, even if the alternative is more expensive to avoid the trouble
<wolfspraul>
quite normal
<wolfspraul>
most people who work in sourcing have 'approved vendor lists' and what not
<wolfspraul>
roh: the alternative is not more expensive because it helps you save the cost of cleaning up the mess otherwise
<wolfspraul>
so you are actually trying to find the cheapest one, the actually cheapest one
<roh>
exactly. says somebody with experience. ;)
<wolfspraul>
which is an ongoing and never-ending process, in hardware
<wolfspraul>
marcan: what is the largest display one could create with your laser projector? at what distance can it still project a recognizable image?
<wolfspraul>
can you project a 20x20m big image? on something over a distance of 100m or more? :-) just curious how to calculate this and what factors affect it
<wolfspraul>
how many of those do you think we can assume to be potentially fixable with a u7/u19/u20 replacement?
<aw>
yup..the root cause of No Screen issue is by Schmitter-Trigger part is bad
<wolfspraul>
the 'vga no screen' (23), and 'midi' (11) and 'usb' (16)?
<aw>
supposedly that we can fix most 'No VGA Screen' and 'MIDI' if they are related to that the same Schmitt-Trigger ship failure
<wolfspraul>
how about usb, flash, impedance?
<aw>
the 'usb' I've not investigate it though
<wolfspraul>
ok
<aw>
flash...failures don't know yet
<wolfspraul>
impedance?
<aw>
this afternoon I'll see if Schmitt-Trigger part influence with 'impedance' failure.
<wolfspraul>
ok
<wolfspraul>
well it looks like we don't need xray after all, right now
<wolfspraul>
first replace all u7/u19/u20
<wolfspraul>
interesting about those 3 rendering cases
<wolfspraul>
so those were boards that already were rendering, but then there was a problem, right?
<aw>
since the Schmitt-trigger parts are used in MIDI & VGA circuits, so the most those failures must be caused by it.
<wolfspraul>
that's clear
<aw>
yes, temporarily no need to take X-ray now, we see later here what I can spot soon
<wolfspraul>
I'm looking at the list overall
<wolfspraul>
usb, impedance, flash - still some big blocks with unknown root causes
<wolfspraul>
and also those strange 3 'rendering' cases, let's see how this develops later
<aw>
also the Schmitt-trigger chips are connected relevantly to +5V as well as 3V3, so it's also possibly dependent to 'impedance' failures. I'll know soon.
<wolfspraul>
ok
<wolfspraul>
well it looks like you are on a good path
<wolfspraul>
you won't run out of work soon :-)
<wolfspraul>
how many boards do you have with all 3 u7/u19/u20 already replaced with good ones?
<wolfspraul>
or do you plan to replace all 270 again?
<aw>
yes, ;-) I got see more boards then get solid conclusions.
<wolfspraul>
if you have boards where all three u7/u19/u20 are good, and you plan no further rework on them, and they pass 100%, then you can try to do long-term rendering testing with them
<aw>
from those data I marked as OOO or OXX etc...the results are unreliable to the rc3 boards on both MIDI & VGA circuits
<wolfspraul>
but only if you have 100% finished boards, otherwise we pickup too much noise
<aw>
so I planed to rework them all (270pcs) with new parts later.
<wolfspraul>
since you have enough power supplies now, you can just let 5 or 10 boards render for 24h or more
<wolfspraul>
ah ok
<wolfspraul>
then we wait with long rendering tests until after that
<wolfspraul>
otherwise too much noise
<aw>
ok
<wolfspraul>
in the meantime you can zoom in on all those other blocks, as you plan already
<wolfspraul>
usb, impedance, flash, also the more exotic ones like audio codec...
<aw>
the audio codec reason I knew already caused by L1's footprint is too big
<wolfspraul>
is your place still clean and everything under control organizationally?
<wolfspraul>
I mean in terms of cleanliness or chaos with all the boards...
<wolfspraul>
watch out that your organization doesn't break down :-)
<aw>
so the L1 is cold soldering while I tested...those ones we can fix it in rc4
<wolfspraul>
can you repair that rc3 board?
<aw>
i could only step by step works now
<wolfspraul>
(with audio codec problems)
<wolfspraul>
sure
<wolfspraul>
big blocks first
<wolfspraul>
keep your place well organized
<aw>
sure, for L1 is easy though so that I've not do it.
<wolfspraul>
90 is a little tough already without a real line :-)
<aw>
I just focus on most high failures firstly
<wolfspraul>
when you go to minbo for the 270 u7/u19/u20, maybe they can do some other reworks on the side?
<wolfspraul>
since you are there already, you can use them maybe :-)
<aw>
these two days I'll call if minbo can rework for it before the new parts are arrived maybe 3 days later.
<wolfspraul>
sure, sounds good
<aw>
well...the ods I need to make one column that shows up u7/u19/u20 I replaced all. and also is going to cancel the words of 'Available' to other words?
<wolfspraul>
delete all 'available'
<aw>
i think now the 'Available' must be include all pass though : rendering/parts/etc..
<aw>
yup
<wolfspraul>
no, let's not overdo it
<wolfspraul>
just delete all available for now
<wolfspraul>
and after the full u7/u19/u20 rework, you can delete the u7/u19/u20 column as well
<aw>
also good.
<wolfspraul>
it's a testing report, we don't need to record things like that which are basically 'extended' production steps
<wolfspraul>
like fix2
<wolfspraul>
the idea of the testing table is to give us a quick and efficient overview over quality issues, in preparation for the next run or future products
<wolfspraul>
which is exactly what it does now, also your grouping into categories is good
<marcan>
wolfspraul: the projector has a scan angle, after that you can project as large as you want (by taking the projector farther and farther away). Of course, brightness diminishes as you go farther, and also how collimated the laser is affects things
<marcan>
10mx10m sounds eminently doable
<marcan>
20m by 20m, if you have a decent laser or in near-darkness, why not
<wolfspraul>
marcan: nice ;-) from what distance can you still project something?
<wolfspraul>
say you want to project a 10x10m image, but from 100m distance
<wolfspraul>
will that work?
<wolfspraul>
200m?
<wolfspraul>
500m?
<wolfspraul>
:-)
<wolfspraul>
wpwrak: brownout?
<wpwrak>
pc needs a new power supply. it dies every once in a while. let's see what i missed ...
<wpwrak>
ah, just the sourcing fun
<wpwrak>
aw: btw, nice catch ! :)
<wolfspraul>
aw_: any news for the news hungry people here?
<larsc>
"pizza is ready!" ;)
<aw_>
oah~ i need pizza. ;-)
<wpwrak>
larsc:you shouldn't say such things. no everyone will be gone for a while now.
<kristianpaul>
news news !
<aw_>
just rework few rc3 boards only but also realized that drying boards after cleaning is important...;-)
<wolfspraul>
kristianpaul: ah hi. I need your help with the news :-)
<wolfspraul>
there's a lot of URLs missing
<wolfspraul>
can you add some? Like you say you ported the namuru correlator to mm - source url?
<kristianpaul>
ok
<wolfspraul>
then the url to softgnss matlab code
<kristianpaul>
mom
<wolfspraul>
no rush
<wolfspraul>
I will edit the language, just help me with the URLs.
<wolfspraul>
aw_: what reworks did you do?
<aw_>
i reworked my 0x2f (the first one we reworked before) then seems not to let it fully dried after rework/clean u7u19u20 then I power up and can't even reconfigure...
<aw_>
just tried to use my rough rest schmitt-triggers(18pcs) on some boards...i need to very carefully soldering, since I broke new one. :(
<aw_>
phew~
<wolfspraul>
is 2F working now?
<aw_>
yes... ;-)
<wolfspraul>
well then :-)
<wolfspraul>
any new discoveries on usb or impedance?
<aw_>
last 87pcs reworked, i cleaned then let them through over night...then not easy to cause it. so if not fully dried, seems that flash digital signals went wrongly though at the beginning.
<GitHub6>
[milkymist/gps-sdr-testing] New condition added to Counter, thanks Artyom G - Cristian Paul Peñaranda Rojas
<aw_>
do reworks that i can only 1.) take them apart one time 2.) then soldering one time 3.) then clean...can't focus on checking others...brain will get messy. ;-)
<aw_>
seems that talking milkymist should have stayed in other IRC there? ;-)
<wolfspraul>
doesn't matter much
<wolfspraul>
this is something called 'off-topic'
<wolfspraul>
in some channels people are easily offended about someone talking about something 'off-topic'
<wolfspraul>
#qi-hardware is about copyleft hardware, manufacturing. #milkymist about the Milkymist SoC and all that connects to it
<wolfspraul>
so there is overlap :-)
<wolfspraul>
kristianpaul: thanks for the links! what is the osgps homepage?
<wolfspraul>
I googled but find a lot of inconclusive links...
<wpwrak>
btw, the large images are convenient but they also make it very hard to read the page. how about using relatively small thumbnails, so that the text doesn't get interrupted to badly
<wpwrak>
?
<wolfspraul>
which images?
<wpwrak>
i.e., i think it would be nice if there was a bit of a logical flow in the news items. because some of them are connected. but it's hard to see this at the moment.
<wolfspraul>
let me first finish more links and images :-)
<wolfspraul>
oh sure
<wolfspraul>
all will be rearranged
<wolfspraul>
no worries
<wolfspraul>
this is completely unreadable now
<kristianpaul>
oh yeah..
<wpwrak>
most of them ;-) anything taller than maybe 200 pixels interrupts the flow. also, if they all had about the same height, the structure may look tidier, too
<kristianpaul>
i was to point same (thumbails)
<wpwrak>
(unreadable) okay, then we all agree ;-)
<wolfspraul>
there will be 4 presentations, I like the idea of spreading them all out for quick overview, but it's big
<wolfspraul>
maybe move elsewhere...
<wpwrak>
the presentation overview collages look very nice. just not in the middle of text ;-)
<wolfspraul>
I need to pull in more images that you created on the downloads site
<kristianpaul>
hey, news collage not bad name :-9
<kristianpaul>
s/:-9/:-)
<wolfspraul>
wpwrak: just added another 36-page presentation :-)
<wolfspraul>
this is just for fun, no worries
<wolfspraul>
I will probably remove it or move elsewhere, just playing with the concept
<wolfspraul>
now that this works so nicely, I'll try the 4-page m1 brochure as well :-)
<wpwrak>
*grin*
<wolfspraul>
there's a very nice picture on page 32 of that presentation that I hadn't seen before
<wpwrak>
yeha, the brochure/flyer/box design of M1 may also be interesting
<wolfspraul>
I think it's the infamouse m1 rc1 video-in rework
<wolfspraul>
oh, box design
<wolfspraul>
true!
<kristianpaul>
collage news for sure ;)
<wolfspraul>
several people attempted that rework, but only 1 got it to work :-) I guess that is documented in that picture
<wpwrak>
i think if you can shrink/reduce each picture to a small thumbnail, the overall look should be quite nice
<wolfspraul>
have to ask Sebastien for the original...
<wolfspraul>
I do the aesthetical stuff, together with more editing, later
<wolfspraul>
the idea with the box design is really good
<wolfspraul>
wpwrak: check out that rework pic! :-)
<wolfspraul>
p32 of sebastien's presentation
<wpwrak>
yeah, nice :)
<wolfspraul>
that was on rc1, for some reason some pins got wired up wrongly, and nobody had seen it in the reviews
<wolfspraul>
so we tried to verify that the chip worked with the correct pins, but that rework proved exceedingly difficult
<wpwrak>
oh, mwalle did it too a few days ago. so now the global count is 2 :-)
<wolfspraul>
oh an rc1 board?
<kristianpaul>
for ac97 chip
<wpwrak>
dunno which board. but it sounded like that nasty rework, yes
<wolfspraul>
hmm. what did he do? replace the lm4550b with wm9707?
<kristianpaul>
yes
<wolfspraul>
ok, nice
<wolfspraul>
hardware upgrade in the field
<wolfspraul>
:-)
<wolfspraul>
kristianpaul: I'm saying that the nyon cat is on a 'silicon wafer'. is that even accurate?
<wolfspraul>
what is the material it landed upon?
<kristianpaul>
yes is Si
<wolfspraul>
ok good
<kristianpaul>
i dont know what size is valid to say wafer..
<wolfspraul>
maybe 2'' or 4'' wafer?
<wolfspraul>
doesn't matter
<wolfspraul>
we already spend 100 times more energy on verifying facts than any other news outlet :-)
<kristianpaul>
heh
<wolfspraul>
if people would realize the impossible task most journalists are facing every day, they wouldn't complain about news reports full of inaccuracies anymore :-)
<wolfspraul>
but ok, we know these projects quite well, so it's relatively easy for us to make it quite accurate
<wolfspraul>
but for example, I cannot even follow the Elphel cameras well