Saturday, 2016-03-19

« Friday, 2016-03-18 Index Sunday, 2016-03-20 »
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sab_123Hi Mithro01:46
sab_123I looked into the set of GSOC project ideas.01:46
sab_123I am actually kind of interested in this01:48
sab_123https://github.com/timvideos/getting-started/issues/3101:48
tpbTitle: [HDMI2USB] Convert the JPEG encoder from VHDL to Migen/MiSoC · Issue #31 · timvideos/getting-started · GitHub (at github.com)01:48
sab_123Is a functional test enough01:49
sab_123Or do you want me to test it on the actualy hardware?01:49
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mithrosab_123: you'll eventually need to test on really hardware02:53
sab_123ok02:53
mithroI'm currently out and about will be slow to respond02:53
sab_123got it02:53
sab_123i am setting up the environment02:53
sab_123I am more familiar with VHDL02:53
sab_123So I will use that as a reference02:54
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mithroI'm back now, but it appears that sab_123 has disappeared05:26
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_florent_Hi sab_123, for the JPEG encoder you can do most of the work in simulation09:28
sab_123ah09:28
sab_123okay09:28
_florent_but testing it on hardware would also be fine09:29
sab_123do you have a working base which you would like to share09:29
sab_123with new test benches09:29
sab_123or do I use the one on github09:29
_florent_or at least verify ressources used with ISE/Vivado09:29
_florent_we are using a JPEG encoder:09:29
sab_123https://github.com/timvideos/HDMI2USB-misoc-firmware/tree/master/gateware/encoder/vhdl09:30
tpbTitle: HDMI2USB-misoc-firmware/gateware/encoder/vhdl at master · timvideos/HDMI2USB-misoc-firmware · GitHub (at github.com)09:30
sab_123I am familiar with ISE09:30
sab_123so I will be using that09:30
sab_123Hope its okay09:30
_florent_yes that's this one09:30
_florent_and I started that:09:30
sab_123sounds good then09:30
sab_123Do you have a standalone testbench09:31
_florent_https://github.com/enjoy-digital/litejpeg09:31
tpbTitle: GitHub - enjoy-digital/litejpeg: A small footprint and configurable JPEG encoder and decoder (WIP) (at github.com)09:31
_florent_no we don't have a testbench for now09:31
_florent_but that can be part of the project to have a reference09:32
sab_123okay09:32
sab_123because to start with09:32
sab_123I would like to have a VHDL module that works09:32
sab_123Then when I begin converting to migen09:32
sab_123its easy to find where the problem is09:33
_florent_yes that's a good approach09:33
sab_123I see that this is based on the opencores09:33
sab_123mjpeg09:33
_florent_yes09:33
sab_123do you want to me start  with the opencore one09:33
sab_123or diff and find what you have changed09:33
sab_123and use the VHDL one on timvideos09:34
_florent_yes that's fine09:34
_florent_we don't have too much changes in the code09:34
sab_123ok09:34
mithroOne of the goals of doing this conversion is to improve the testing and documentation09:34
sab_123I will use the opencores first09:35
sab_123read a bit on the JPEG stuff09:35
sab_123and try to get a VHDL module in ISE setup09:35
sab_123after that we can begin to port to migen09:35
mithro_florent_: Have you seen http://blog.elphel.com/2014/06/ddr3-memory-interface-on-xilinx-zynq-soc-free-software-compatible/ ?09:36
_florent_yes I saw that, that's almost similar to what we did in MiSoC09:39
mithro_florent_: the interesting thing is their analysis which makes them think they can get higher performance than the Xilinx MIG09:43
mithroI'll be back tomorrow10:52
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CarlFKmithro: https://plus.google.com/101817321389198875733/posts/ZxmFEvAP7N115:34
CarlFKTV in my hotel room hooked up to Opsis, some noise? showing up on 2 of the color bars15:35
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CarlFKtumbleweed: raise your hand if you are in the awards room21:16
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tumbleweedCarlFK: o/21:18
tumbleweedRMS is *so* RMS21:19
CarlFKda.21:19
CarlFKhmm, I see holgar loser left21:19
tumbleweedh0lger is here21:19
tumbleweedon the right, front21:19
CarlFKwho's right ?21:20
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CarlFKtumbleweed: where are you ?22:11
tumbleweedCarlFK: middle near the front22:11
tumbleweedCarlFK: I'm going to the SFC thing, then may be the main party22:11
CarlFKI see ya22:11
CarlFKSFC?22:12
tumbleweedhttp://sfconservancy.org22:12
tpbTitle: Software Freedom Conservancy (at sfconservancy.org)22:12
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GChrissping mithro22:31
mithroGChriss: pong23:06
mithroGChriss: the panel is 23 ish hours away, right?23:07
GChrisscorrect23:07
GChrissbut I'm available for testing now23:07
GChrissif you like23:07
mithroI'm not going to have this side set up until tomorrow23:08
GChrissthat's ok; had a chance to talk w/ carl and kat at length earlier23:08
GChrissan audio-only test would be fine even w/o a mic, the biggest thing I'm concerned about right now is the MIT firewall23:09
GChrisswhich would likely just mean I would need to call you/silvia if it is indeed an issue23:10
GChriss...and also just checking in to see if there's anything I can do from our side to help23:11
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mithroGave me a small heart attack when I woke up to see your ping23:41
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