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| 06:04 | Bertl_oO | off to bed now ... have a good one everyone!
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| 10:01 | Bertl | morning folks!
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| 12:41 | LordVan | hi
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| 12:41 | Bertl | hey
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| 13:23 | LordVan | you did the PCB and FPGA stuff right?
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| 13:24 | Bertl | probably, depends on what "the PCB" and "the FPGA stuff" is :)
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| 13:32 | LordVan | well
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| 13:32 | LordVan | axiom ^^
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| 13:32 | LordVan | Manfred told me about it on the way back from the meeting yesterday
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| 13:33 | Bertl | I see :)
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| 13:40 | Bertl | hey Michele_!
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| 13:40 | LordVan | looks good :D - the PCB ^^
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| 13:40 | Bertl | thanks!
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| 13:40 | LordVan | only looked it of course ;)
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| 13:40 | LordVan | I did some PCB stuff back in school (HTL) ;)
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| 13:42 | se6astian | hello!
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| 13:42 | Bertl | LordVan: what kind of design?
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| 13:43 | LordVan | well the basic stuff you do in school and mill out then ;)
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| 13:43 | LordVan | not really any mult-layer stuff
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| 13:43 | Bertl | yeah, but any specific project?
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| 13:43 | LordVan | ah that
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| 13:43 | LordVan | well let me think
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| 13:44 | LordVan | it is quite a long time ago ^^
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| 13:45 | LordVan | i honestly do not remember what it did anymore ^^ some small projects (PCB had to be < EuroCard format) and be millable .. some analogue stuff but a few simple micro controller (Atmel 8051) things
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| 13:45 | LordVan | nothing particularily complicated
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| 13:45 | LordVan | one time it was I2C bus with 80512
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| 13:45 | LordVan | 8051
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| 13:45 | LordVan | to access a temperature sensor
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| 13:46 | LordVan | but that never got actually made on pcb due to the school year being over ;)
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| 13:46 | Bertl | ah, yes, very popular
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| 13:47 | LordVan | yeah simple to program
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| 13:47 | LordVan | i was the only one in class who used linux to develop instead of the "standard" MS Dos tools haha
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| 13:47 | LordVan | that was fun ..
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| 13:47 | LordVan | getting the toolcahin to work
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| 13:50 | LordVan | i sort of want to do that kind of work again
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| 13:50 | LordVan | it was quite interesting
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| 13:50 | LordVan | but i forgot so much
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| 13:58 | mars_ | with a modern microcontroller, I guess ;)
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| 13:59 | LordVan | gtg. cu
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| 14:00 | mars_ | or not... ^^
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| 14:53 | se6astian | Team Talk Vol 5 is out!
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| 14:53 | se6astian | https://apertus.org/axiom-team-talk-volume5-article-july-2015
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| 15:01 | se6astian | now time to leave the axiom office :)
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| 15:03 | mars_ | you mean the 2000sqm office in the first district? ;)
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| 15:57 | Guest78647 | would anyone be able to answer a few questions about the image acquisition pipeline?
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| 15:58 | Bertl | probably
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| 15:59 | Guest78647 | thanks!
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| 16:00 | Guest78647 | https://www.apertus.org/sites/default/files/20140910012757-BETA_interface.jpg
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| 16:01 | Guest78647 | so, the FPGA performs pixel reordering etc., then it travels over some interconnect to the ARM core onto DRAM?
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| 16:02 | Bertl | the zynq combines the FPGA fabric (PL) with two hardened cores (PS) and a dram memory controller
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| 16:02 | Guest78647 | I should prefix this with my intentions - I'm working on a university research project for a modular sensor interface that works with the Video 4 Linux subsystem - the Axiom seems like a really handy reference :)
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| 16:03 | Bertl | the data is moved from the FPGA fabric to the DRAM via the hardened dram controller
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| 16:03 | Bertl | so the arm cores are not involved in this part
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| 16:03 | Guest78647 | ah ok
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| 16:05 | Guest78647 | and the image stored in memory is in CV12000 RAW format at this stage? DNG conversion is done on the ARM cores?
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| 16:05 | Bertl | it usually is, but you could modify it in the FPGA before writing it out to memory
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| 16:06 | Guest78647 | of course
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| 16:07 | Guest78647 | so out of interest, in the Beta you have image overlays etc.
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| 16:07 | Guest78647 | is the ARM chip powerful enough to process this 4K framebuffer?
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| 16:08 | Bertl | again, the arm cores are not really involved in the overlays
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| 16:08 | Bertl | or more precisely, the arm cores "create" overlays and "control" what is done with them
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| 16:08 | Guest78647 | oh? so overlays are all done on the FPGA
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| 16:08 | Bertl | but the actual image processing happens in the FL fabric
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| 16:08 | Guest78647 | ah I see, so the FPGA is doing the actual compositing
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| 16:08 | Bertl | *PL
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| 16:08 | Guest78647 | got it
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| 16:11 | Guest78647 | so essentially the ARM cores are just used for control
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| 16:11 | Guest78647 | all the heavy-lifting is done on the FPGA?
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| 16:11 | Bertl | yup
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| 16:12 | Guest78647 | interesting
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| 16:13 | Guest78647 | thank you very much for your help - I wish you the best of luck with the project!
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| 16:13 | Bertl | you're welcome! and thanks!
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| 16:36 | Bertl | off for now ... bbl
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