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#apertus IRC Channel Logs

2014/04/03

Timezone: UTC


01:05
jucar
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01:38
Bertl
off to bed now ... have a good one everyone!
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intracube
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07:57
se6astian
good morning
08:13
Bertl
morning folks!
11:08
jucar
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11:36
Bertl
anybody interested in helping out with data collection?
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13:43
danieel
Bertl: what data collection?
14:59
se6astian1
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15:03
se6astian
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15:08
Bertl
I'm currently investigating various connectors and I need somebody to check prices/availability on different distributors
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se6astian
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17:28
intracube
changed nick to: intracube_afk
18:10
jucar
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sb0
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21:47
se6astian
time for bed
21:47
se6astian
good night
21:47
se6astian
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22:04
edmundronald
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22:04
edmundronald
changed nick to: eadmund
22:04
eadmund
yo
22:05
eadmund
hiya
22:11
eadmund
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22:11
edmundronald
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22:11
edmundronald
re.
22:12
edmundronald
I would like an update on the microzed carrier board?
22:16
Bertl
hey, what kind of update do you have in mind?
22:17
edmundronald
I wondered where you are with it?
22:18
edmundronald
After making me wait for a decision for 3 weeks, Cruse have bowed out of the prelim study
22:18
Bertl
design phase, component identification, testing small parts
22:19
edmundronald
so i need to decide myself whether I go with zedboard, microzed or something else
22:19
Bertl
yes, zedboard is basically available, but requires you to build the SFE yourself
22:19
edmundronald
SFE?
22:20
Bertl
sensor front-end
22:20
edmundronald
and microzed doesn't?
22:20
Bertl
microzed is work in progress, parts/testing will be available soon
22:21
edmundronald
a possible alternative for me might be to use *something* with a Lattice LVDS bridge
22:22
Bertl
I guess there are many possible alternatives ... depends on what you want to do :)
22:22
edmundronald
whole point here is I am not sure yet. I don't have a sensor choice.
22:23
edmundronald
I was thinking of replicating your proto for testing
22:23
Bertl
I remember
22:24
edmundronald
I guess I could also start with Microzed ...
22:26
edmundronald
maybe I should just order *anything* t get off the ground. Whatever happens I will need to make a sensor interface, it looks like.
22:26
Bertl
you will also need to figure out the basics with whatever FPGA platform you choose
22:27
Bertl
like tool setup, synthesis, debugging, testing, etc
22:27
edmundronald
yes, so I am wondering whether I should order Zedboard or Microzed initially.
22:28
edmundronald
ideally, I would use a platform that exists, but that doesn't seem to exist :(
22:29
Bertl
I'd say it is mainly a matter of resources
22:29
edmundronald
?
22:30
edmundronald
Matrix determination is apparently of great interest to the digital cinema guys.
22:30
Bertl
for the right price, we can probably build another axiom alpha for you and have it shipped (without sensor) in a week or so :)
22:31
edmundronald
what sort of price are we talking about ?
22:32
Bertl
a few thousand euro I guess, it would have to make sense for us to spend time on that
22:32
edmundronald
urk.
22:33
Bertl
but the point is, it's not that the platform doesn't exist, it is just to much money or efford for you to get it :)
22:33
edmundronald
what sort of price will micro zedboard extensions go for?
22:34
Bertl
we haven't decided yet, but the basic setup will be rather affordable
22:34
Bertl
we haven't decided -> we don't know what we put on the basic setup
22:34
edmundronald
I get your point. If it were a camera it would be no problem. But as a development tool that has a limited lifetime it's different
22:36
edmundronald
so I guess I'll be very pleased to get the "affordable" version :)
22:37
Bertl
I guess so, just make sure that you do not miss the crowdfunding, as it will be hard to get one in the beginning
22:37
edmundronald
re calibration, what you really need is a measuring device (spectro). A ColorMunki is probably enough.
22:37
Bertl
and you probably want to benefit from the extra nice price as well
22:38
edmundronald
Once you have that, you want to get a target with a decent gamut.
22:38
edmundronald
you measure the patches, in decent light, and then you write the code which creates the matrix.
22:38
Bertl
feel free to send us whatever you consider helpful
22:39
edmundronald
well, we could swap a decent measurement instrument for a board :)
22:39
Bertl
if it works with linux, we might consider that :)
22:40
edmundronald
It works with Graeme Gill's Argyll
22:41
edmundronald
interestingly, my friends are getting a lot of interest from the cinema industry re. matrices
22:42
edmundronald
so I'm thinking of revisiting this stuff myself.
22:44
edmundronald
send me an email when you get to the crowdfunding stage, please, so I don't miss it.
22:44
Bertl
I can try to remember, but it's probably better to check periodically on the web site
22:45
edmundronald
when do you expect?
22:45
Bertl
I'm sure you won't be able to miss it there :)
22:45
Bertl
we are currently finishing the horizon 2020 work and I hope we'll start soon (i.e. this month or at most the next one)
22:46
edmundronald
how hard is it to get lvds signals on/off the microzed?
22:46
edmundronald
are the connectors normal stuff?
22:47
edmundronald
Soy seem to be using micro-lvds, with a 0.9V center point (I don't know the terminology)
22:47
edmundronald
and I wonder how hard it would be to improvise an interface.
22:50
Bertl
the connectors feature 2x24LVDS pairs on two 100pin FCI connectors
22:50
edmundronald
beautiful renders on the web site.
22:51
edmundronald
can the center voltage be adjusted or is it fixed?
22:51
Bertl
the 0.9V is called sub LVDS
22:51
edmundronald
ah.
22:52
edmundronald
can the board be set to do that or is it nececessary to translate?
22:52
Bertl
the common voltage is not a big problem on the xilinx fpgas, the swing could be, not sure how much the zynq requires
22:54
Bertl
but it should work, unless they are really on the limit
22:54
edmundronald
Ah. That is good news. I only need a few lines initially, can multiplex probably, because I'm doing stills.
22:55
Bertl
multiplexing LVDS is not a good idea, unless you have (usually expensive) multiplexers
22:56
edmundronald
I mean, the chip can be said to use only a few lines, I think.
22:56
Bertl
ah, yes, they usually do
22:56
edmundronald
and as I can wait for the image ...
22:57
edmundronald
ok, thanks for your time. I'll be in touch. If you need help with color, email me.
22:58
edmundronald
bye
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edmundronald
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sb0
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23:59
intracube_afk
changed nick to: intracube
00:05
sb0
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