Current Server Time: 06:38 (Central Europe)

#apertus IRC Channel Logs

2014/11/29

Timezone: UTC


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01:41
Bertl
off to bed now ... have a good one everyone!
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Bertl
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Bertl_zZ
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11:20
Bertl
morning folks!
11:21
intracube_afk
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12:12
ItsMeLenny
morning
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surami
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surami
hey!
14:10
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14:12
surami
would it be possible to connect a coaxpress board to the Beta somehow? i'm just reading about that technology
14:13
Bertl
yes, it would be possible
14:15
surami
here is a document about the chipset: http://ww1.microchip.com/downloads/en/DeviceDoc/60001302A.pdf
14:16
Bertl
well, that's an equalizer sec
14:16
Bertl
*set
14:16
Bertl
it is important for the cable part, but it still requires the actual Coaxpress interface
14:17
surami
oh, i see
14:18
Bertl
but the interface is basically SDI, so not that problematic
14:18
Bertl
I would suggest adding the link to the lab or wiki though
14:19
surami
ok, i will
14:20
surami
some weeks ago here were somebody, who could
14:20
surami
help you out with a framegrabber design
14:20
danieel
Bertl: cxp and sdi share about as much as pcie and sdi :)
14:24
Bertl
as you know all the electrical interfaces and the protocols very well, you might want to document them on the wiki :)
14:27
danieel
what for? a comparison table might be handy, but if you want to know the interface, the best is to read its standard... otherwise a lot of false information gets mixed in
14:27
Bertl
linking to those standards would be benefitial there
14:28
danieel
the issue is that some are non free - that would need to be solved first
14:28
danieel
(at least the SD has a free variant - without UHS)
14:28
Bertl
well, link to the free ones then, and note for the others that they a non-free
14:29
danieel
well.. i am not sure if there is any really free one - one that can be used without being part of a certification group
14:31
danieel
the specs about interfaces - most of them are on wikipedia, is there a need to double that info?
14:32
Bertl
all standards can be used without being part of a certification group
14:32
Bertl
there is no such thing as a forbidden standard
14:32
danieel
how do you obtain a VID then ?
14:33
Bertl
yes, obviously there is a need to collect this information, as wikipedia does not list the electrical and encoding specs in a neat table somewhere
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philippej|away
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se6astian|away
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20:03
surami
Bertl: what about Camera Link HS?
20:04
surami
or Camera Link "Full" mode?
20:05
Bertl
what about it?
20:07
slikdigit
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20:08
surami
i meant a custom designed camera link board attached to the Beta
20:08
Bertl
yes, would also be possible
20:11
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intracube
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20:24
surami
so this different protocols could be connected to the left/right side io shields?
20:24
surami
i don't understand technically
20:25
surami
or there will be a highspeed protocoll on the Beta?
20:25
Bertl
there is a high speed shield, and a general purpose I/O shield
20:26
Bertl
the high speed shield will at least connect 16 LVDS pairs with at least 1GBit/s per lane
20:27
Bertl
this can be used to to connect certain interfaces directly and other interfaces via high speed serializer/deserializers
20:29
surami
well I have to search things on the net to understand this :)
20:29
surami
but thank for the explanation
20:30
Bertl
no problem, let me know if you need more information
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se6astian
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21:08
surami
good night!
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rhavan
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21:28
Bertl
welcome rhavan!
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surami
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surami
back again
22:42
surami
how much hdmi ports will be on the Beta and what type?
22:44
surami
i'm thinking again on the 4k raw capture
22:44
surami
if the 3 color channels could be delivered separetly
22:45
surami
on 3 different hdmi ports
22:45
Bertl
we have a 3xHDMI shield planned, which would allow for FullHD on each port
22:45
surami
60fps?
22:46
Bertl
should be doable, yes
22:46
surami
and hdmi 1.4?
22:46
surami
:)
22:46
Bertl
probably not, because HDMI 1.4 requires higher pixel clocks
22:47
Bertl
i.e. HDMI 1.4 adds 4kx2k modes
22:48
surami
so 1.2
22:48
Bertl
we plan to support a single high pixel clock HDMI shield
22:48
Bertl
that one will probably be HDMI 1.4
22:49
Bertl
yes, 165MHz (pixel clock) is most likely the maximum for the 3x HDMI shield
22:49
surami
the color channels could be separeted on the fpga side and delivered separatly to HDMI ports?
22:49
Bertl
yup
22:50
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22:53
surami
if the raw data is "filtered"
22:53
surami
with 3 different channels
22:53
surami
r,g,b
22:54
surami
it would be only noise on a HDMI display?
22:54
surami
could the raw data separeted this way, 3 channels?
22:55
surami
or the raw data should be processed first?
22:55
surami
to do something on 3 channels?
22:55
Bertl
you do not even need to split it into r,g,b
22:56
Bertl
it's fine to send 3 sensel to the first HDMI out, 3 sensel to the second, 3 sensel to the third and so on and so forth
22:56
surami
sensel?
22:56
Bertl
(that's what we plan for recording 4k over 3xHDMI
22:57
Bertl
)
22:57
Bertl
sensel = photo sensitive element, can be R, G or B
22:57
Bertl
(in our case)
22:57
surami
aha
22:58
surami
so in theory with a capturecard this data could be transfered something visible?
22:58
Bertl
yup
22:58
surami
i mean 3 hdmi input
22:58
Bertl
as long as the capture card captures raw data without lossy compression
22:59
surami
i found a card