Current Server Time: 21:59 (Central Europe)

#apertus IRC Channel Logs

2020/12/07

Timezone: UTC


02:28
aombk2
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aombk
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mumptai
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06:22
Bertl_oO
off to bed now ... have a good one everyone!
06:22
Bertl_oO
changed nick to: Bertl_zZ
06:58
BAndiT1983|away
changed nick to: BAndiT1983
09:14
se6ast1an
good day
09:19
BAndiT1983
hi
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RexOrCine
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15:21
Bertl_zZ
changed nick to: Bertl
15:22
Bertl
morning folks!
15:46
_bluez
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16:26
RexOrCine1
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RexOrCine
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17:00
se6ast1an
MEETING TIME!
17:00
se6ast1an
who is here?
17:00
Bertl
is here ...
17:01
BAndiT1983
am here
17:01
se6ast1an
the usual suspects :)
17:01
_bluez
* bluez is here..
17:01
se6ast1an
ah, hi _bluez, great!
17:01
metal_dent[m]
is present \o/
17:01
se6ast1an
your internships start today
17:01
se6ast1an
welcome!
17:01
Bertl
metal_dent[m]: \o/
17:01
_bluez
yep!
17:01
metal_dent[m]
thank you!
17:02
Bertl
se6ast1an: @internship we already did four weeks of reading!
17:02
se6ast1an
very good
17:02
_bluez
not 'entirely' four weeks ':D
17:02
se6ast1an
bluez/metaldent do you want to briefly tell the community here about your internships?
17:03
_bluez
sure
17:03
metal_dent[m]
yes
17:04
_bluez
should i go first?
17:04
metal_dent[m]
sure
17:04
_bluez
thanks... so i will be working on the fpga dynamic reconfiguration project
17:05
_bluez
we are trying to reduce the fpga resource usage by getting rid of axi lite memory mapped registers and instead update those register values via Dynamic Partial Reconfiguration
17:06
Osqar
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17:06
Osqar
Hi all!
17:07
_bluez
so i have already started preliminary studying as Bertl mentioned... and now as a first step i will first try to implement the usual axi memory mapped registers
17:07
_bluez
and try to understand stuff in more detail
17:08
_bluez
this will be a research project and hence i am also interested to write a paper on it by the end
17:08
_bluez
so thats it i guess... i will be working on this with Bertl for the next 5 months at least
17:08
se6ast1an
great, what are the internship dates?
17:08
se6ast1an
ah, yes you just said 5 months, :)
17:09
_bluez
yep :)
17:09
se6ast1an
great thanks!
17:09
se6ast1an
metal_dent[m]: your turn
17:11
metal_dent[m]
my internship period is also the same, and i'll be working on my gsoc project
17:11
metal_dent[m]
during that time, i had hardcoded many stuff/methods so first i'll try to modify that and then will also add some tests
17:12
metal_dent[m]
in the other part of the internship, me and BAndiT1983 had planned to find any security issues or vulnerabilities with remote or firmware
17:13
metal_dent[m]
and i also discussed with anuejn who gave me an idea regarding the webUI which he said can provide an unauthenticated root access
17:14
metal_dent[m]
so i'll try to replicate this problem and will try to fix it, so that's it from my side
17:15
se6ast1an
great, thanks!
17:15
se6ast1an
so you will be regulars to the monday meetings again I assume, great!
17:15
metal_dent[m]
yup
17:15
_bluez
indeed :)
17:16
se6ast1an
quick updates from me:
17:17
se6ast1an
unfortunately the ospark order we placed recently has been rendered inoperational, bertl discovered an issue with one of the innerr layers design file, I am sure he will share more about this in his report
17:18
se6ast1an
so we have now worked on analysing the issue and how to identify anything similar (the issue has been fixed already) before we order another run
17:18
se6ast1an
at the same time jlcpcb has shown to not be able to manufacture the hardware in the way we need it
17:19
se6ast1an
so talks with nextpcb are ongoing and promising but they require additional specifications that we are now in the process of preparing
17:19
se6ast1an
at least they seem to take things seriously and so I have high hopes for the capabilities and quality
17:20
se6ast1an
I guess thats it from my side
17:20
se6ast1an
BAndiT1983 anything you want to share?
17:21
se6ast1an
otherwise Bertl please finish us, like always :)
17:23
Bertl
okay, BAndiT1983 ?
17:24
Bertl
seems to have some connectivity issues or so ...
17:25
Bertl
anyway, as se6ast1an mentioned, we screwed up the OSHpark panel
17:26
Bertl
shortly before submission, we decided to make the microzed connectors which are part of a 'microzed device' separate entities
17:26
Bertl
to simplify things for Tele assembly (pick and place)
17:27
Bertl
this led to Eagle not doing the ground flood connections properly, which means that the SMD connectors on top and bottom side of the power and main boards have no GND connection
17:27
Bertl
this is quite hard to spot on the panel assembly, because it almost looks like the connection is there, but it isn't
17:28
Bertl
so we simply missed it despite all the reviews and checks
17:28
Bertl
I only found it after the boards have been sent to the fab, so nothing we could do there
17:28
Bertl
the interface board and the sensor boards are fine though
17:29
Bertl
so we can use those as is and with a little rework, we probably can at least make the main boards work for testing or development
17:30
Bertl
most of the time last week was spent on getting everything ready and endless mail exhanges with JLCPCB
17:30
Bertl
that's it from my side for this week
17:30
se6ast1an
on the bright side please tell us about the HDMI fix for bertrand
17:30
Bertl
ah, yes, right
17:31
Bertl
well, we did a remote session (jitsi) with Bertrand to figure out why his Beta didn't like the recorder
17:31
Bertl
and it turned out to be a tricky issue with firmware 2.x where the gpio settings disable the I2C mux on his Beta
17:32
Bertl
(only specific hardware is affected by that)
17:32
Bertl
once we figured that out, it was only a matter of selecting the correct HDMI mode and we got everything working as expected
17:33
Bertl
guess that's it
17:33
Osqar
Great!
17:33
se6ast1an
vup created an issue to fix it upstream on github
17:33
se6ast1an
not sure if he got to it yet
17:33
se6ast1an
he said he was rather busy currently
17:33
Osqar
BTW, I heared from Maxim that the other 'Belgian' beta is also with you atm?
17:34
se6ast1an
it was disassembled and put into another beta shipped to a belgian customer again IIRC
17:34
Osqar
*heard
17:35
Osqar
Ah ok. So there is none available atm? Because if there is, I'd like to have it in Antwerp for some time.
17:36
se6ast1an
there is none I am afraid
17:37
se6ast1an
I also have some pending tests but no beta to do it with
17:37
se6ast1an
like the OLPF we received some time ago
17:37
Bertl
will all change end of January hopefully
17:37
se6ast1an
fingers crossed
17:37
se6ast1an
ok anyone else with topics/things to share?
17:39
Osqar
Yes, a vaccine and beta production... what a good start of a new year :)
17:39
Osqar
The betas will also be vaccinated I hope?
17:40
se6ast1an
we can restart the AXEÖHM giveaway campaign with ampules of antibody blood!
17:40
se6ast1an
anuejn: you have news for us!
17:41
Bertl
late news :)
17:41
se6ast1an
if the anchor touches his ear and says: "Oh I am just hearing about...." then it gets exciting :))
17:43
anuejn
I worked mostly on the recorder this week
17:43
anuejn
as I teasered last week I felt the urgent need to rewrite everything
17:44
anuejn
so now we have a gstreamer like architecture where a pipeline of nodes can each process images
17:45
_bluez
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17:45
anuejn
the rewrite can make use of multiple cores by pipelining the processing steps
17:45
anuejn
also I rewrote the debayering core
17:45
anuejn
it now uses vulkan compute shaders instead of opengl
17:45
se6ast1an
cool!
17:46
anuejn
seems like it is somewhat faster (~60fps with the beta 4k images on my laptop)
17:46
se6ast1an
very cool!
17:47
anuejn
it still lacks some way to render the result but thats what I am currently working on
17:47
anuejn
moreover there is some integration to ffmpeg and gstreamer to encode the result
17:48
anuejn
however that is still very slow (~10fps for hardware h264 encoding)
17:48
Bertl
wouldn't it make sense to implement the reading/debayering in gstreamer?
17:49
Bertl
(or ffmpeg)
17:49
anuejn
the problem here is that there is some coppying going on to get the frames off the gpu in vulkan and then coppying to the gpu for vaapi
17:50
anuejn
that could be solved by using the dmabuf infrastructure vup found out but is still some work
17:51
anuejn
however for other scenarios the current infrastructure already avoids unnescessary buffer coppys
17:51
anuejn
for example one could directly read a file into a gpu buffer (not implemented yet)
17:52
anuejn
thats it from my side mostly :)
17:52
se6ast1an
many thanks!
17:52
anuejn
Bertl: that would work too but the ffmpeg / gstreamer output is more an afterthougth than anythnig else
17:53
anuejn
the actual goal was originally to write a gui application and for that it seemed a bit off path to do everything in gstreamer
17:53
Bertl
fair enough
17:53
anuejn
if I rewrote everything once again maybe I wouldintegrate it in gstreamer
17:54
vup
(also ffmpeg doesn't have that great of a threading infrastructure from what I can tell)
17:55
anuejn
however gstreamer still is really complex and that comes with a cost during development ;)
17:57
se6ast1an
vup anything to add/report yourself?
17:57
se6ast1an
otherwise I would conclude todays meeting
17:57
vup
nope still quite busy, maybe I will try myself at a zerocopy vulkan -> vaapi solution sometime :)
17:59
se6ast1an
sounds exciting :)
17:59
se6ast1an
ok then, thanks everyone!
17:59
se6ast1an
meeting concluded!
17:59
Osqar
Bye!
18:00
se6ast1an
good evening!
18:03
Osqar
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18:14
BAndiT1983
sorry, was not at my computer, was called away
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bluez_[m]
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Triffid_Hunter_
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BAndiT1983
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