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| 10:17 | Bertl | morning folks!
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| 15:05 | se6astian | good evening
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| 16:09 | RexO | Test
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| 16:09 | Bertl | 1, 2, 3 ...
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| 16:12 | RexO_ | What is it that makes IRC the best platform for internal comms? And were other options explored?
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| 16:13 | RexO_ | Is it because a window can be embedded in apertus.org
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| 16:13 | Bertl | first, it can be used on almost every OS via commandline and via gui
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| 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
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| 16:14 | Bertl | there are many different clients like irssi, pidgin, xchat ...
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| 16:14 | RexO_ | Did you explore things like Slack?
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| 16:15 | Bertl | we prefer something which is open and not affiliated with a company
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| 16:15 | RexO_ | Right
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| 16:15 | Bertl | we also prefer to keep private conversations private (i.e. peer to peer)
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| 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
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| 16:20 | RexO_ | holonic mapping*
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| 16:23 | RexO | See I got bounced there
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| 16:24 | RexO | Test
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| 16:24 | Bertl | you might want to consider an IRC client as well :)
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| 16:25 | RexO | Ten4
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| 16:51 | Bertl | wb RexOr!
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| 16:53 | RexOr | It's working. What if someone just want to submit an image, they'd have to host it?
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| 16:53 | Bertl | either that or there are numerous image hosting services available
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| 16:53 | Bertl | i.e. just upload it somewhere and paste the URL here
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| 18:28 | Bertl | danieeel, mithro: any ideas how to get SDR104 modes working with a typical FPGA?
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| 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)
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| 18:33 | danieeel | what spec is sdr104?
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| 18:33 | danieeel | voltage
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| 18:38 | danieeel | i would go for TXS02612 ... has a free 1:2 mux, QFN-24. can do 120mbps at >=1.8V
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| 18:38 | danieeel | Bertl: comment on ^^
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| 18:40 | Bertl | SDR104 is the highest UHS-I mode
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| 18:40 | Bertl | it uses 208MHz at 1.8V, but the card needs to initialize with 3V
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| 18:42 | danieeel | if nothing helps.. just use a passive mux from 1.8V bank there, and a separate 3v3 interface for lowspeed cards
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| 18:42 | Bertl | TXS02612 is nice, but tops out at 60MHz/120Mbps
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| 18:42 | danieeel | i was not aware of that 104= 4b@208Mhz
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| 18:42 | danieeel | do you have 1.8v natively, or all fpga io is 3v3?
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| 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
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| 18:44 | Bertl | but I cannot easily do both, i.e. 1.8V and 3.3V
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| 18:44 | Bertl | or 3.0V
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| 18:44 | Bertl | for the final design, we can use an FPGA with different I/O voltages per bank
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| 18:45 | danieel | then go for 1.8 and use a slow shifter to 3.0, then a passive mux
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| 18:45 | Bertl | do you have any parts which can do the 208MHz for 6 I/Os?
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| 18:46 | Bertl | (the MUX part)
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| 18:46 | danieel | i used either usb switches (1 pair) or pcie switches (4pairs)
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| 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
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| 18:49 | danieel | cant find a bidirectional shifter to handle 208mhz
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| 18:50 | Bertl | yeah, that was my first idea :)
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| 18:50 | danieel | ti states 250 for controlled direction shifters.. lets see
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| 18:51 | danieel | SN74AVC4T245
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| 18:51 | danieel | use 3 of them?
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| 18:52 | danieel | maybe just two.. they can be 2+2 bits in separate direction
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| 18:54 | Bertl | yeah, I was thinking about those as well, the SN74AVC4T744 has separate direction controls
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| 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
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| 18:57 | danieel | more than 1?
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| 18:57 | danieel | not just the D[3:0] changes direction?
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| 18:58 | Bertl | CMD, DAT0, DAT1-3 change individually it seems
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| 20:56 | se6astian | off to bed
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| 20:56 | se6astian | good night
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| 22:01 | Bertl | off to bed now ... have a good one everyone!
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