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| 07:47 | Bertl | morning folks!
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| 07:53 | se6astian | good day
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| 12:31 | Y_G | Hi BAndiT1983
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| 12:31 | Y_G | Could you check the trello board whenever you have time
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| 12:33 | Y_G | Tried some test functionality with sysfsAdapter
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| 13:27 | Bertl_oO | Hey Nira! How is it going?
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| 13:37 | Nira | Good! Finally having some more time today :)
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| 13:42 | Bertl_oO | glad to hear!
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| 20:21 | Davelister | okay, it looks like I have understood the main things about the electronics :-)
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| 20:21 | Davelister | I now should be able to help on the interface board
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| 20:25 | se6astian | excellent!
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| 20:26 | Bertl_oO | Davelister: great! there are a few not so obvious details we should talk about
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| 20:26 | Davelister | and my bad, I had a look to the AC/DC switching specs for a Z7020 speed grade 1, it may be able to do it :-)
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| 20:26 | Davelister | (I got the wrong line, sorry)
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| 20:26 | Davelister | Bertl_oO: sure
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| 20:27 | Bertl_oO | if you look at the schematics of the main board and the sensor frontend
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| 20:28 | Bertl_oO | you can see that there are 'C' shaped brackets around the LVDS pairs of the connectors towards the interface board
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| 20:28 | Bertl_oO | (e.g. page 3 of the main board schematics)
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| 20:28 | Davelister | yes
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| 20:29 | Bertl_oO | in the middle, those 'C's become 'CC's
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| 20:29 | Bertl_oO | this means that the pairs connected there are clock capable
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| 20:29 | Davelister | for clocking compatible I suppose?
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| 20:29 | Davelister | great
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| 20:30 | Bertl_oO | correct, so those need to be addressed by the interface board, but it hasn't been decided how the smart interface board is structured in this regard
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| 20:30 | Bertl_oO | i.e. we can decide whether we want clock capable pairs to match up there or overlap
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| 20:31 | Bertl_oO | as they are only relevant for 'inputs' we have some flexibility
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| 20:31 | Davelister | ok
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| 20:32 | Bertl_oO | IO banks are something which also needs carefull consideration
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| 20:33 | Davelister | that what I was looking for
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| 20:33 | Bertl_oO | and we have a bunch of bus pins SPI/I2C/etc which are connected to the routing fabrics with their own voltage rails
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| 20:34 | Davelister | I suppose the "common" electrical signals between the interface and the main board/Zynq shall be dispatched over Bank 34 and 35?
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| 20:35 | Bertl_oO | the LVDS pairs are 'LVDS' so bank voltage is somewhat flexible there, but for other parts and interfaces it might matter to choose the 'right' bank voltage
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| 20:35 | Bertl_oO | in total we have 8 (eight) power rails for interface and sensor frontend
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| 20:36 | Bertl_oO | two of them are dedicated for the interface board
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| 20:36 | Bertl_oO | the other six are reserved for the sensor frontend and need to be passed through
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| 20:37 | Bertl_oO | they are designed for up to 3A each, but realistically the total power budget should be below 30W
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| 20:38 | Davelister | ok
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| 20:39 | Bertl_oO | there also is remote sensing for those power rails (which isn't used yet, but will be used in the power board v2.0)
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| 20:41 | Davelister | remote sensing such as "power monitoring"?
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| 20:41 | Davelister | or remote control?
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| 20:41 | Bertl_oO | note that the interface board interfaces are designed to be rotation symmetric
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| 20:41 | Bertl_oO | to mainly check and if necessary adjust the power rail
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| 20:42 | Bertl_oO | i.e. the rail is connected via headers (going through the main board)
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| 20:43 | Bertl_oO | and there is a kind of kelvin connection to the rail which feeds back to the power board
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| 20:43 | Bertl_oO | it is not part of the active regulation (yet) but it could be used to make minor adjustments
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| 20:43 | Davelister | I see
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| 20:44 | Bertl_oO | the sensor frontend is designed to provide over and under voltage signals to the power board
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| 20:44 | Bertl_oO | this is mainly to allow for flexible adjustments of the rails and verification via the sensor frontend
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| 20:49 | Davelister | that's noted Bertl_oO
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| 20:49 | Davelister | thank you for the introduction
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| 20:50 | Davelister | I am sorry, but tomorrow will be another harsh day
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| 20:50 | Davelister | have a good night everyone
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| 20:50 | Bertl_oO | no problem, if there are any questions (and I'm pretty sure there will be), just let me know
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| 20:50 | Bertl_oO | have a good night!
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| 20:50 | Davelister | thank you, you too!
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| 21:02 | se6astian | heading off too
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| 21:02 | se6astian | good night
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