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#apertus IRC Channel Logs

2014/07/30

Timezone: UTC


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fsteinel
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02:15
Bertl
off to bed now ... have a good one everyone!
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se6astian|away
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07:01
se6astian
good morning
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10:21
Bertl
morning folks!
10:31
se6astian
hello
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jucar
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vila_
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TiN
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14:32
se6astian
hey guys!
14:32
se6astian
just read your email
14:35
TiN
hey! :)
14:37
vila_
hey, nice to meet you!
14:38
TiN
me too, just read vila's email :)
14:39
TiN
we are looking a camera similar to the new elphel
14:39
vila_
the thing is... we are working with cameras, and the problem we have with COTS cameras is that we are too far from the data
14:40
vila_
we need to run some real time calculations with the data stream
14:40
se6astian
I assume you mean the upcoming Elphel 393, what is it that makes it only similar but not perfect for you?
14:40
vila_
and we've been looking quite a while for a camera that allow us to have some sillicon space near the sensor
14:42
TiN
se6astian, mm no I mean the new camera, based on this post http://blog.elphel.com/2014/06/ddr3-memory-interface-on-xilinx-zynq-soc-free-software-compatible/
14:42
TiN
is under development
14:42
se6astian
yes thats Elphel 393
14:43
vila_
i like the elphel 393, but i thinks the best for me is to tell you what are we looking for. and you, the expert, tell me what do you think is a good option
14:43
TiN
Ok, weird. I just thought that 393 has Spartan or something similar
14:43
se6astian
Elphel 353 is the lastest camera model in production with spartan 6
14:44
se6astian
but we (apertus) are not associated with Elphel in any way, I just know the guys from the past
14:45
se6astian
so that "real time calculations" you mentioned you want to do inside the main FPGA or do you plan to use a dedicated chip ?
14:45
vila_
the main FPGA would be more than enough i think
14:46
se6astian
great
14:46
se6astian
we use a Zynq 7020 currently in the AXIOM Alpha and in the upcoming AXIOM Beta
14:46
se6astian
this is the current image processing pipeline in the Alpha
14:46
se6astian
https://wiki.apertus.org/index.php?title=AXIOM_Alpha_Software#Image_Pipeline
14:47
se6astian
you can tap into the data and do you own stuff at any level as everything is released as open source
14:51
vila_
what are the chances of change the sensor at some point. (i.e. how sensor-specific is the rest of the camera)
14:52
vila_
it would be a major design change or just a little one?
14:52
TiN
it looks really good, Zynq 7020 has dual cortex A9 :)
14:54
vila_
yeah!
14:55
vila_
we have now some designs based on a kintex-7 that would be the 7030, but is really close to it
14:55
TiN
Uh, you are using the CMV12000 sensor. It has 64 LDVS lines@300MHz
14:56
TiN
it is very similar to our current sensor too
14:58
se6astian
we plan to use either Zynq 7015 or 7030 at a later point as we need the high speed transceivers
14:59
se6astian
actually we plan to have several different sensor modules for the Beta
14:59
se6astian
at least a Truesense Kac12040 and CMV12000 seem likely currently
15:00
se6astian
changing sensor is intended so the design change is kept minimal but of course its still a bit of work
15:00
vila_
nice
15:01
vila_
and when do you think you'll have a release candidate of the Beta?
15:06
se6astian
crowd funding should start soon and then approximately 6 months
15:10
vila_
how much do you expect to raise to fund the project?
15:10
se6astian
we aim for around 100.000â¬
16:45
Bertl
TiN: what is your current sensor?
16:48
TiN
Bertl, vita 25k
16:48
TiN
http://www.onsemi.com/pub/Collateral/NOIV1SN025KA-D.PDF
16:52
Bertl
nice, is there anything you need an NDA for (datasheet wise)?
17:00
se6astian
am I right with a per chip price estimate of around 4000$ ?
17:01
Bertl
from the design, the vita25k would fit for the beta board
17:01
Bertl
although it would be a little tricky to get it on-center
17:01
Bertl
(because of the huge offset the visual area has)
17:02
Bertl
TiN: do you use some kind of socket for the sensors?
17:03
TiN
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TiN
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17:04
TiN
Bertl, yes sadly is necessary an NDA to get "the full datasheet"
17:04
Bertl
that would at least for us be a reason against the sensor
17:05
TiN
yes we used a socket
17:06
Bertl
what socket if you don't mind and where did you get it (and at what price)?
17:08
Bertl
@NDA, although at first glance, the sensor datasheet you linked looks fairly complete
17:12
TiN
Bertl, I really don't mind but the camera was made by a 3rd party provider and we don't have all the technical details. But I'll take a look on the board if I can see the model
17:13
Bertl
ah, that's always nice, 3rd party development and not much data available :)
17:14
TiN
yes so sad
17:19
Bertl
so you want to go the FOSS/OH route next time because of the 3rd party experience? or is that unrelated?
17:29
TiN
yes it is related, the experience wasn't good... But also we need to do some processing of the images in real time. Anyway that could be done in other ways, it is not really necessary all open...
17:31
TiN
The most team uses free software, and we are trying to change to open hardware as well
17:49
vila_
pe
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TiN
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_TiN_
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21:32
se6astian
time for bed
21:32
se6astian
night
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se6astian
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21:46
TiN
night o/
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