Current Server Time: 03:29 (Central Europe)

#apertus IRC Channel Logs

2018/03/05

Timezone: UTC


23:07
enigma_
left the channel
23:08
TofuLynx
joined the channel
23:11
TofuLynx
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23:30
slikdigit
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rton
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01:33
Bertl_oO
off to bed now ... have a good one everyone!
01:34
Bertl_oO
changed nick to: Bertl_zZ
01:38
mithro
Bertl_zZ: Would you be okay if I did a crowdfunding campaign for a run of professionally made pmod-debug boards you did?
04:14
supragya
joined the channel
04:48
supragya
BAndiT1983|away, have this link: https://github.com/supragya/libfuse-FrameServer
04:48
supragya
BAndiT1983|away, I will be trying out libfuse for our need here
04:54
supragya
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05:01
Davelister
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Davelister
changed nick to: Guest41740
05:52
Guest41740
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Davelister
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Davelister
changed nick to: Guest73998
06:24
sebix
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sebix
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sebix
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06:31
Guest73998
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06:53
BAndiT1983|away
changed nick to: BAndiT1983
07:07
sebix
left the channel
07:37
se6astian|away
changed nick to: se6astian
07:50
Bertl_zZ
changed nick to: Bertl
07:50
Bertl
morning folks!
07:51
Bertl
mithro: sure, but they probably need some rework ... last time I checked the mosfets were not available anymore
08:01
supragya
joined the channel
08:02
supragya
Hi BAndiT1983 , in train?
08:02
BAndiT1983
hi supragya, yes, on my way to the city of love ;)
08:02
supragya
well, I just made my first filesystem
08:03
Bertl
BAndiT1983: Paris?
08:03
supragya
using FUSE
08:03
BAndiT1983
oha, have you committed it?
08:03
BAndiT1983
yes, paris
08:03
supragya
no..
08:03
supragya
let me do something useful and commit
08:03
sebix
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08:03
sebix
left the channel
08:03
sebix
joined the channel
08:03
BAndiT1983
just a small trip for 3 days, before final moving furnitures on friday
08:04
Bertl
have fun then!
08:04
supragya
paris - whoa... shoot some photos :)
08:04
BAndiT1983
supragya, started also to look at filesystem in C++17, for fun currently, as i don't have a clue about further steps for frame serving yet
08:04
BAndiT1983
i have my DSLR almost always with me
08:05
BAndiT1983
thanks Bertl
08:05
TofuLynx
joined the channel
08:05
BAndiT1983
ah, TofuLynx is also here
08:05
BAndiT1983
have you tried the loop?
08:05
BAndiT1983
checked it today again, works fine
08:05
supragya
BAndiT1983, I have quite a good feel of how frameserving would be done
08:05
supragya
Let me have a commit and then explain
08:06
BAndiT1983
alright, will clone your repo, so i can check it in parallel
08:20
TofuLynx
Hey
08:20
BAndiT1983
hi
08:26
BAndiT1983
changed nick to: BAndiT1983|away
08:26
BAndiT1983|away
changed nick to: BAndiT1983
08:27
TofuLynx
left the channel
08:33
TofuLynx
joined the channel
08:33
TofuLynx
Hey back again
08:33
TofuLynx
Good morning :)
08:34
TofuLynx
It's raining a lot here
08:34
TofuLynx
I'm soaked
08:34
TofuLynx
BAndiT1983 will test the new loop after lunch!
08:35
BAndiT1983
sunshine in germany
08:35
BAndiT1983
take your time, just inspecting ProcessingTest a bit, to see where it has logical problems
08:43
TofuLynx
Ok! If you find anything please do tell me
08:44
BAndiT1983
ok
08:44
BAndiT1983
your jump parameter is not adjusting width and height, tihs is possibly the problem with dual image
08:47
TofuLynx
Why isn't it though?
08:48
BAndiT1983
it sohuld also adjust here -> // Changes the resolution to half the width and height.
08:48
BAndiT1983
image.SetWidth(image.Width()/2);
08:48
BAndiT1983
image.SetHeight(image.Height()/2);
08:48
TofuLynx
Yeah
08:49
TofuLynx
If the jump is 4, the image width should be 1/4
08:49
BAndiT1983
as it still a prototype it's ok, just adjusted it by hand, will try now with quarter resolution, maybe we should just add enum class to allow only certain values, like FULL, HALF, QUARTER
08:49
TofuLynx
Right?
08:49
BAndiT1983
yes
08:49
TofuLynx
Good idea
08:50
supragya
Better than skip enum, have an int... (2's power)
08:50
TofuLynx
Don't think so
08:50
BAndiT1983
why? enum class can hold int
08:50
TofuLynx
Yeah
08:51
TofuLynx
And it's more resilient using enum class, as it avoids missclicks
08:51
BAndiT1983
you can write something like that enum class Quality : uint8_t {FULL = 1, HALF = 2, QUARTER = 4}
08:51
supragya
Why stick with just FULL HALF QUARTER when you can have something like skip=0 (Full), skip=1(half) all the way till we want..
08:51
supragya
just a suggestion
08:52
BAndiT1983
because that way, i can use int value to do skipping, without recalculation
08:52
BAndiT1983
there are just a couple of options, as at some point the image will be too small and blurry
08:53
TofuLynx
I didn't understand this: [09:52] BAndiT1983: because that way, i can use int value to do skipping, without recalculation
08:53
supragya
at resolution like ours, 1/8 will work too, even 1/16 for preview (it worked for HDTV format in AE).
08:53
BAndiT1983
Quality::QUARTER will give you 4 as value, see uint8_t behind enum class name
08:54
TofuLynx
Ah you meant that, ok
08:54
BAndiT1983
it was also possible in previous C++, but now it is strong-typed
08:54
BAndiT1983
image shows up, when using / 4, but it's cropped at the moment, will look for the source of problem
08:56
TofuLynx
It's cropped
08:56
TofuLynx
What about the scale?
08:56
TofuLynx
Is it vertically scaled wrongly?
08:57
BAndiT1983
it's just the height, have added pixel skipping for line, colors a bit wrong, but will debug it
08:57
BAndiT1983
unsigned int dataSize = _height * _width;
08:57
BAndiT1983
for (unsigned int index = 0; index < dataSize; index += pixelsToSkip)
08:57
BAndiT1983
{
08:57
BAndiT1983
_dataRed[dataIndex] = _outputData[index];
08:57
BAndiT1983
_dataGreen[dataIndex] = (_outputData[index + 1] + _outputData[index + _width]) >> 1;
08:57
BAndiT1983
_dataBlue[dataIndex] = _outputData[index + _width + 1];
08:57
BAndiT1983
dataIndex++;
08:57
BAndiT1983
if(index % _width == 0)
08:57
BAndiT1983
{
08:57
BAndiT1983
index += (_width * (pixelsToSkip / 2));
08:57
BAndiT1983
}
08:57
BAndiT1983
}
09:00
BAndiT1983
ah, it has to be not pixelsToSkip / 2, but - 1
09:00
BAndiT1983
but it's just a quick test, have to be tested more
09:00
TofuLynx
I see
09:01
TofuLynx
But I don't understand index% _width
09:01
BAndiT1983
seems to work, even with 8
09:01
TofuLynx
Wait
09:01
BAndiT1983
it's modulo, if index divided by width has no rest, then it skips a line (or multiple)
09:02
TofuLynx
I think I understand it now
09:02
BAndiT1983
just a test for end of line
09:02
TofuLynx
Yeah
09:16
supragya
BAndiT1983!
09:16
BAndiT1983
зеÑ_
09:16
BAndiT1983
yes?
09:16
BAndiT1983
sorry wrong keyboard layout
09:16
supragya
You might want to go into my repo now
09:17
supragya
Wait while image is pushed to remote
09:21
BAndiT1983
still pushing?
09:21
supragya
that raw12
09:21
supragya
net is 12KB/s IDK why
09:22
BAndiT1983
raw12??? why are you uploading it, can't just link to one on apertus page?
09:23
supragya
Your wish, I like to keep a backup
09:23
supragya
It is now committed
09:23
BAndiT1983
just saying
09:23
supragya
You might want to look into readme or repo page itself
09:24
BAndiT1983
doing it currently and pulling commit
09:24
BAndiT1983
it needs time as wifi on train is limited
09:25
supragya
Just committed a simple README change
09:26
BAndiT1983
hm, the loop seems to be doing a little bit too much
09:27
supragya
? me?
09:27
BAndiT1983
it's faster to read whole file into RAM and do the process
09:27
BAndiT1983
supragya, yes, your loop
09:27
BAndiT1983
i will try to fork and do pull request as an example later, if you want
09:27
supragya
I know... I just ported PiNGRaw12 code
09:28
supragya
I could have read it in one go
09:28
BAndiT1983
ah, we still have to discuss it, but on a private channel
09:28
supragya
[ we still have to discuss it, but on a private channel] - about what?
09:28
BAndiT1983
c++ challenge
09:29
supragya
now?
09:29
BAndiT1983
no, not prepared yet, but see some problems in your loop, mostly performance and maintenance
09:30
supragya
sure, need this... I am thinking of rewriting much of it.
09:30
BAndiT1983
just as summary: it can be a lot simpler
09:30
supragya
Roger!
09:31
supragya
were you able to run the FS?
09:32
BAndiT1983
just a moment, have to take a look if it pulled completely
09:32
supragya
make sure you have libfuse installed
09:33
BAndiT1983
libfuse-dev required in ubuntu
09:33
supragya
yes
09:35
BAndiT1983
"no such file or directory"
09:35
BAndiT1983
need to copy RAW12 somewhere first?
09:36
supragya
"no such file or directory" - line no
09:36
supragya
[need to copy RAW12 somewhere first?] - no it is self contained
09:36
BAndiT1983
will sent you the log in pm
09:36
supragya
please do
09:37
supragya
BAndiT1983, it is running alright
09:38
supragya
these errors are because not all stat functions are implemented
09:38
supragya
are you able to access from the other terminal the rawfile
09:38
supragya
?
09:38
BAndiT1983
nope
09:38
BAndiT1983
folder in tmp is empty
09:39
BAndiT1983
ah
09:39
BAndiT1983
now it works, i have to exit and enter again
09:39
supragya
use another terminal
09:39
supragya
leave that for LibFUSE to work
09:39
BAndiT1983
i know
09:39
supragya
BAndiT1983, success?
09:40
BAndiT1983
supragya, i know how to work with linux, by i was already in the folder, so fuse is not registering it, so file is only present after exiting and entering again
09:40
supragya
[i know how to work with linux] - I didn't mean that way, sorry
09:41
supragya
Btw, were you able to get the dump file out into main FileSystem and read it?
09:41
BAndiT1983
no problem
09:42
BAndiT1983
now i know what this is about, seeing log rolling further if i open file
09:42
BAndiT1983
yes, just used nano and fuse registered access
09:42
BAndiT1983
VLC would request data and we would serve it, seems like it's not that difficult
09:42
BAndiT1983
although difficult enough
09:43
supragya
That is why I was confident about FUSE
09:43
supragya
The thing is now we have to concentrate on one encode format in which serving is to be done
09:43
supragya
It for sure cannot be raw
09:44
BAndiT1983
AVI is ok
09:44
supragya
[VLC would request data and we would serve i] - using readcallback, exactly as anuejn said
09:44
BAndiT1983
it can be of very simple type that way
09:44
supragya
BAndiT1983, you can look at how simple this is by looking into C file
09:45
BAndiT1983
looked a bit through it, maybe we even don't need directory stuff, just things for a file
09:45
supragya
yes
09:45
supragya
it is mainly for ls
09:45
supragya
but we wont need it
09:45
supragya
A singly file is what we will serve
09:46
TofuLynx
What are you doing supragya?
09:46
BAndiT1983
would suggest to use cmake later, so we can switch build behaviour and libs between OCes
09:47
supragya
yes cmake!
09:47
supragya
need to learn that
09:47
supragya
TofuLynx, we are building a frameserver
09:47
TofuLynx
Ah!
09:47
TofuLynx
Okkie :)
09:49
supragya
BAndiT1983, given this.. what should I look for now?
09:49
BAndiT1983
i suppose at avi structure
09:50
supragya
Sure :)
09:50
BAndiT1983
changed nick to: BAndiT1983|away
09:50
BAndiT1983|away
changed nick to: BAndiT1983
09:51
BAndiT1983
supragya, just look for RIFF file format
09:51
BAndiT1983
as AVI is a subset of it
09:52
BAndiT1983
https://cdn.hackaday.io/files/274271173436768/avi.pdf
09:52
BAndiT1983
https://msdn.microsoft.com/en-us/library/windows/desktop/dd318189(v=vs.85).aspx
09:53
BAndiT1983
seems like our "movi" tag has to be "db" for uncompressed video
09:53
BAndiT1983
looks a bit like tiff format to me
09:53
BAndiT1983
or MLV
09:55
supragya
I have heard Uncompressed AVI is not that hard
09:55
supragya
BAndiT1983, have we moved on from VS now?
09:55
BAndiT1983
for a prototype, yes
09:56
BAndiT1983
maybe we can get something simple up and running first
09:56
supragya
okay
09:56
BAndiT1983
would prefer real multi-platform solution, but it's sufficient for now
09:57
supragya
libfuse has OSX port and some dokeny project for windows
09:58
BAndiT1983
i know, but that requires extra build setup in cmake
10:07
supragya
wild idea, how about FFMPEG for encoding somehow
10:09
BAndiT1983
this would be too much bloat
10:09
BAndiT1983
simple avi encoder is very sufficient
10:09
supragya
are we looking at building one ourselves
10:10
supragya
or from an available library
10:10
BAndiT1983
why not? is not that big
10:10
BAndiT1983
other libraries bring just too much other stuff with them
10:11
supragya
sure.. just give me some time
10:12
BAndiT1983
don't rush, take your time
10:12
supragya
Although, is it too early to discuss the final objectives of the proposal?
10:13
BAndiT1983
we still have some days left
10:13
BAndiT1983
so let us see how it progresses and then we will think of some goals
10:14
supragya
okay :)
10:15
supragya
another thing, how about H.264?
10:15
BAndiT1983
license?
10:16
supragya
I mean mp4 format?
10:16
BAndiT1983
focus on uncompressed AVI first, before even considering further steps
10:16
BAndiT1983
do we need it'S features?
10:17
supragya
no, but there are supposedly more H.264 encoder scripts available
10:17
BAndiT1983
?
10:17
BAndiT1983
why do we need h264=
10:18
BAndiT1983
*?
10:19
supragya
Will focus on AVI
10:19
supragya
Just asked as an alternative for there are many implemtations of it
10:19
supragya
available open source
10:20
BAndiT1983
yes, but why should we need it? it would just make the task more difficult and eat up performance for unnecessary encoding
10:20
BAndiT1983
if you write 24bit frame data to the RAM, final app should read it and thats it, no encoding, conversion etc. besides what OCcore does
10:20
BAndiT1983
fancy stuff will be implemented later, if required
10:21
supragya
ok
10:22
supragya
have to leave, exam prep (High Performance Computing)
10:22
BAndiT1983
good luck, have fun
10:22
supragya
glhf you too
10:22
supragya
bye TofuLynx
10:22
supragya
left the channel
10:23
BAndiT1983
ah, right, what about you TofuLynx? have you tried the loop?
10:51
BAndiT1983
off for now, will try to be back on later
10:58
rton
joined the channel
11:04
TofuLynx
Not yet, still haven't had lunch xD
11:14
BAndiT1983
changed nick to: BAndiT1983|away
11:35
futarisIRCcloud
left the channel
11:44
Bertl
off for now ... bbl
11:44
Bertl
changed nick to: Bertl_oO
12:26
supragya
joined the channel
12:52
BAndiT1983|away
changed nick to: BAndiT1983
12:56
supragya
BAndiT1983, reached Paris?
12:56
BAndiT1983
yep, just logged into my laptop to send some urgent mails
12:56
BAndiT1983
will leave for the city soon
13:09
BAndiT1983
supragya, any questions befor i leave for a bit longer?
13:09
BAndiT1983
*before
13:11
supragya
BAndiT1983, no I would be studying for most part today
13:11
supragya
However will look at AVI today
13:11
supragya
If time permits
13:12
BAndiT1983
alright, if you need help, then just ask, have general plan for AVI format already
13:12
BAndiT1983
so, off for some time
13:12
supragya
Would be looking into way to make AVI file for now... to keep it simple
13:12
BAndiT1983
changed nick to: BAndiT1983|away
13:12
supragya
Have a great time BAndiT1983|away
13:17
TofuLynx
Paris? Wasn't Stuttgart?
13:17
TofuLynx
supragya: how did the exam go?
13:19
supragya
well, exam for today... was horrible, I can tell you that
13:19
supragya
Have HPC tomorrow
13:21
nmdis_Iti
joined the channel
13:21
nmdis_Iti
Finally, the app changed my nick xD
13:22
nmdis_Iti
How many exams you have left supragya?
13:22
supragya
2/6 done
13:23
supragya
4 to go
13:23
supragya
Hi btw nmdis_Iti XD
13:24
nmdis_Iti
Hi xD
13:24
nmdis_Iti
I have 5 left
13:24
TofuLynx
Hey xD
13:24
nmdis_Iti
left the channel
13:25
TofuLynx
I have Data Analytics and Data structures test this Wednesday
13:25
TofuLynx
1 of three tests
13:25
TofuLynx
Hopeful it's okay
13:25
nmdis1999
joined the channel
13:26
nmdis1999
All the best TofuLynx :)
13:27
TofuLynx
Thanks :)
13:32
supragya
nmdis1999, jyada wilayati bandon se baat ho rahi hai... dekh rha hun mai!
13:33
supragya
Hamare exam ka kuch nhi?
13:34
TofuLynx
What is this
13:34
TofuLynx
Indian? xD
13:34
supragya
yuss
13:35
TofuLynx
Na boa! Ãs fixe supragya
13:36
supragya
which language
13:36
TofuLynx
Portuguesr
13:36
TofuLynx
Portuguese*
13:38
supragya
you cannot translate mine... i can translate yours though
13:38
supragya
try it
13:38
supragya
It's good it's cool
13:41
TofuLynx
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TofuLynx
joined the channel
13:43
nmdis1999
left the channel
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nmdis1999
joined the channel
13:46
TofuLynx_
joined the channel
13:47
TofuLynx_
I said: It's okay! You're cool supragya! xD
13:47
supragya
[It's good it's cool] - google translate XD
13:47
TofuLynx_
xD
13:48
TofuLynx_
A índia é um país interessante, gostava de visitar um dia! :)
13:51
nmdis1999
left the channel
13:52
supragya
left the channel
14:17
TofuLynx_
BAndiT1983. I tested the new loop. It works now! But there's a strange horizontal line of pixels that's wrong
14:20
supragya
joined the channel
14:21
TofuLynx_
I will send a screenshot of this behaviour
14:22
supragya
link?
14:36
supragya
TofuLynx, TofuLynx_ , there?
14:39
TofuLynx_
https://imgur.com/a/6AUNy
14:42
TofuLynx_
here is it
14:42
TofuLynx_
sorry, slow internet
14:42
supragya
same here, dont worry
14:43
TofuLynx_
:')
14:55
TofuLynx_
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TofuLynx
left the channel
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supragya
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supragya
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15:29
se6astian
changed nick to: se6astian|away
15:38
pusle
left the channel
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sebix
left the channel
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pusle
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16:03
Adi_
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nmdis1999
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Adi_
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16:15
nmdis1999
Read logs @supragya tum to phodoge hi exams ;)
16:16
nmdis1999
BTW My exams are draining my energy, hope I can clear this phase xD
16:17
nmdis1999
@TofuLynx: [A índia é um país interessante, gostava de visitar um dia! :)] that's sweet. We'll welcome you for sure :D
16:19
supragya
btw, that droid problem remember, nmdis1999
16:19
supragya
??
16:19
supragya
directorysync?
16:19
supragya
I am asked for an interview! yay
16:19
nmdis1999
Whoa! Congrats buddy D
16:19
nmdis1999
:D*
16:20
nmdis1999
You did put up loads of efforts :)
16:20
supragya
it's tmrw, figers crossed
16:20
nmdis1999
And you have an exam as well?
16:20
supragya
nmdis1999, You know how much load I am going through
16:21
nmdis1999
Yes, I do. But I know you'll do it. :D
16:21
supragya
Now a days, I sleep 4 hours only and then stay infront of computer, multitasking :)
16:21
supragya
hope it pays off
16:22
nmdis1999
It will , you've worked for it.
16:22
supragya
PM me your mail ID
16:23
nmdis1999
Okay
16:24
nmdis1999
This week will be tough for me as well, I am trying to work on T734(trying to make the tool from scratch) and exams.
16:24
nmdis1999
So my speed is reduced :(
16:24
supragya
have a look at the mail... see the PDF
16:24
supragya
and the vid
16:25
nmdis1999
Okay I will n
16:25
nmdis1999
rn*
16:30
nmdis1999
Watched it, it's amazing!
16:30
nmdis1999
How much time did it took you to write the code though?
16:30
supragya
see github
16:30
supragya
4 days
16:30
supragya
and ws working here too
16:31
nmdis1999
Ahan, they called you quite soon. I saw that and +exams ;)
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se6astian|away
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19:30
Adi_
Hello everyone, I am solving C++ challenge and I'm getting following image for red layer. Can you please give your feedback on the output..
19:30
Adi_
Image link: https://imgur.com/hOjs8PV
19:32
Bertl_oO
hello Adi_!
19:32
Bertl_oO
image looks wrong :)
19:33
Adi_
Thanks for the feedback Bertl_oO
19:34
Bertl_oO
there are some ImageMagick one liners on the wiki to debayer raw image data
19:35
Bertl_oO
you might want to adjust that to see what to expect per channel
19:36
Adi_
Okay. I will look wiki for it. Thanks :)
19:36
Bertl_oO
you're welcome!
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20:44
anuejn
se6astian: Bertl_oO : Do you have some spare assembled hdmi/usb3 modules, which you could sell, so we can try our expansion module slots?
20:57
se6astian
the usb3 module software is not finished yet
20:57
se6astian
but for hdmi everything is ready
20:57
se6astian
so I am sure we can arrange something
20:57
se6astian
can you share more insight into the state of developing?
20:57
se6astian
*development
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21:02
anuejn
yup
21:03
anuejn
currently, we are trying to comunicate with the sensor via i2c
21:04
anuejn
our main problem today was, that we faced fabrication issues with the main board to board connector due to the lack of soldering skills
21:05
se6astian
oh so you have manufactured hardware already, very nice
21:05
anuejn
but all needed hardware components have arrived and now we only need to produce a working pcb ;)
21:06
anuejn
moreover, we now have a working boot image (as you saw) with ci builds
21:06
se6astian
thats great
21:06
se6astian
some points I noticed so far:
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21:07
se6astian
1. dont forget you need an IR/UV cut off filter
21:07
se6astian
with dev kits we use screw on type filters to attach to lenses
21:07
se6astian
for the micro I would suggest glueing a smaller (which makes it much cheaper) one between C mount and sensor
21:09
anuejn
do you have any links to good sources of optical components?
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21:09
se6astian
2. I see in the AR0330CM datasheet that it uses 196 Mp/s (4-lane HiSPi or MIPI) - did you talk to Bertl_oO yet about how to interface these with the zynq properly?
21:09
anuejn
(also a optical low pass filter will be needed)
21:10
se6astian
from what I know MIPI is highly proprietary and I need to read up on HiSPi (sounds like fast SPI which is better I hope)
21:10
se6astian
I am not convinced an OLPF is required
21:11
se6astian
we do not currently use one in the beta and beside fine textures like bricks, fabric which can cause moire there are no issues so far
21:12
anuejn
2. no, not yet. but we want to use hisp (which is propriatary, too, but the specs appeared on the internet :see_no_evil: )
21:12
se6astian
I have no special source for optical components, the UV/IR filters we currently use are consomer products from Haida
21:12
anuejn
moreover, there is verilog code from altera, which can be used as a reference
21:12
se6astian
quite expensive, the 72mm diameter filter is around 70-90$ IIRC
21:13
se6astian
but you only pay for the size, for a C mount diameter it should be a tiny fraction of that
21:14
se6astian
http://optics-online.com/irc.asp
21:14
se6astian
as example
21:14
anuejn
we hope to be able to implement the hispi with the IOSERDES blocks
21:14
se6astian
Reflective IR cut-off filter for CMOS 10mm diameter
21:14
se6astian
17.50$ for sample
21:14
se6astian
cheaper in volume
21:16
se6astian
sorry I am off for today, but lets continue this chat soon!
21:16
se6astian
good night
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se6astian
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anuejn
good night
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21:42
Bertl_oO
what kind of soldering issues did you have with the connector?
21:45
Bertl_oO
also, as I wrote, I had a look at the board design, and there is probably some work required to make it perform as expected
21:46
Bertl_oO
I'm not sure my KiCad is showing your pcb design properly, but it looks to me like you are using a two layer board?
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