Current Server Time: 08:57 (Central Europe)

#apertus IRC Channel Logs

2016/02/28

Timezone: UTC


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TD-Linux
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10:17
Bertl_zZ
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10:17
Bertl
morning folks!
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davidak
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se6astian
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rafal
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se6astian|away
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15:05
se6astian
good evening
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jucar
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RexO
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RexO
Test
16:09
Bertl
1, 2, 3 ...
16:11
RexO_
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16:12
RexO_
What is it that makes IRC the best platform for internal comms? And were other options explored?
16:13
RexO_
Is it because a window can be embedded in apertus.org
16:13
Bertl
first, it can be used on almost every OS via commandline and via gui
16:13
Bertl
the web interface is just a simple tool to get started, nobody using IRC for a longer time sticks with the web interface
16:13
RexO
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16:14
Bertl
there are many different clients like irssi, pidgin, xchat ...
16:14
RexO_
Did you explore things like Slack?
16:15
Bertl
we prefer something which is open and not affiliated with a company
16:15
RexO_
Right
16:15
Bertl
we also prefer to keep private conversations private (i.e. peer to peer)
16:18
RexO_
This is why I wonder whether Noomap might be applicable from a community standpoint in the future. And I'd pursue it now, but its very buggy in beta, there are about 25 folks on board as far as I know, and I'm one of them. So there's still a lot of work to do. But it's based on holonic networking. It too is OS
16:20
RexO_
holonic mapping*
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jucar
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RexO
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RexO
See I got bounced there
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RexO_
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RexO
Test
16:24
Bertl
you might want to consider an IRC client as well :)
16:25
RexO
Ten4
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RexO
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jucar
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RexOr
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16:51
Bertl
wb RexOr!
16:53
RexOr
It's working. What if someone just want to submit an image, they'd have to host it?
16:53
Bertl
either that or there are numerous image hosting services available
16:53
Bertl
i.e. just upload it somewhere and paste the URL here
17:17
arpu
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jucar
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18:28
Bertl
danieeel, mithro: any ideas how to get SDR104 modes working with a typical FPGA?
18:30
Bertl
I found two devices which seem to be able to do the level shifting (IP4856CX25 and NVT4857UK) but they both use 0.4mm pitch WLCSP packages which are rather small (too small for OSHpark)
18:33
danieeel
what spec is sdr104?
18:33
danieeel
voltage
18:38
danieeel
i would go for TXS02612 ... has a free 1:2 mux, QFN-24. can do 120mbps at >=1.8V
18:38
danieeel
Bertl: comment on ^^
18:40
Bertl
SDR104 is the highest UHS-I mode
18:40
Bertl
it uses 208MHz at 1.8V, but the card needs to initialize with 3V
18:42
danieeel
if nothing helps.. just use a passive mux from 1.8V bank there, and a separate 3v3 interface for lowspeed cards
18:42
Bertl
TXS02612 is nice, but tops out at 60MHz/120Mbps
18:42
danieeel
i was not aware of that 104= 4b@208Mhz
18:42
danieeel
do you have 1.8v natively, or all fpga io is 3v3?
18:43
danieeel
changed nick to: danieel
18:43
Bertl
for the test I'm planning, the I/O voltage would be 2.5V, but can be set to 1.8V as well
18:44
Bertl
but I cannot easily do both, i.e. 1.8V and 3.3V
18:44
Bertl
or 3.0V
18:44
Bertl
for the final design, we can use an FPGA with different I/O voltages per bank
18:45
danieel
then go for 1.8 and use a slow shifter to 3.0, then a passive mux
18:45
Bertl
do you have any parts which can do the 208MHz for 6 I/Os?
18:46
Bertl
(the MUX part)
18:46
danieel
i used either usb switches (1 pair) or pcie switches (4pairs)
18:47
danieel
is there much intelgence required for the "application specific" shifting? what about just using a generic purpose shifter and switch the SD voltage on the fly
18:49
danieel
cant find a bidirectional shifter to handle 208mhz
18:50
Bertl
yeah, that was my first idea :)
18:50
danieel
ti states 250 for controlled direction shifters.. lets see
18:51
danieel
SN74AVC4T245
18:51
danieel
use 3 of them?
18:52
danieel
maybe just two.. they can be 2+2 bits in separate direction
18:54
Bertl
yeah, I was thinking about those as well, the SN74AVC4T744 has separate direction controls
18:54
Bertl
the problem there is that I need a lot of extra direction I/Os compared to bidirectional solutions, but that might work
18:57
danieel
more than 1?
18:57
danieel
not just the D[3:0] changes direction?
18:58
Bertl
CMD, DAT0, DAT1-3 change individually it seems
19:01
jucar
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aombk2
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aombk
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jucar
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20:56
se6astian
off to bed
20:56
se6astian
good night
20:57
se6astian
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medusade
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medusade
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22:01
Bertl
off to bed now ... have a good one everyone!
22:01
Bertl
changed nick to: Bertl_zZ