Monday, 2017-04-03

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xfxfmithro: there were some people experimenting with using SDR to pickup venue mics.  do you know what SDR they were using?  would't mind ordering one00:48
mithroCarlFK: Where are you running that script?00:55
CarlFKmithro:  ~/temp00:55
mithroCarlFK: That won't work - it needs to run inside a HDMI2USB-litex-firmware repo00:55
mithroCarlFK: If you just want qemu without the firmware repo, you need to clone and then run ./build-litex-qemu.sh00:56
tpbTitle: GitHub - timvideos/qemu-litex (at
mithrocr1901_modern: ping?00:59
CarlFKmithro: ah, I think I skipped too much.  "You can skip the section requiring the Xilinx tools"01:05
CarlFKmithro: but I am not really sure what section that is01:05
tpbTitle: HDMI2USB-litex-firmware/ at master · timvideos/HDMI2USB-litex-firmware · GitHub (at
CarlFKmithro: so I should do this: "Run the bootstrap script to build an environment required for flashing firmware:'
tpbTitle: HDMI2USB-litex-firmware/ at master · timvideos/HDMI2USB-litex-firmware · GitHub (at
mithroCarlFK: yes01:07
cr1901_modernmithro: pong (I won't be here long)01:11
mithrocr1901_modern: So, where are we with the SPI flash?01:12
cr1901_modernmithro: Exactly where we were yesterday :). It's working, bitbang reading, and upload needs to be added01:13
mithrocr1901_modern: Have you checked it it works on the Opsis too?01:13
cr1901_modernmithro: No. Actually I need to buy a power adapter for the Opsis too, now that you mention it. I haven't powered it on in a while.01:14
cr1901_modernmithro: My next plan was to test w/ minispartan601:14
mithroThe minispartan6 doesn't have working DDR memory01:50
cr1901_modernIt doesn't? I mean, it has DRAM, it's just slow as hell01:51
mithrocr1901_modern: It's currently broken01:51
cr1901_modernI wonder why... hmmm...01:51
mithroCarlFK: Updated instructions at
tpbTitle: qemu-litex/ at master · timvideos/qemu-litex · GitHub (at
CarlFKmithro: thanks - I'll give that a run01:53
CarlFKmithro: I'm trying the 2nd option because it looked simpler:
tpbTitle: qemu-litex/ at master · timvideos/qemu-litex · GitHub (at
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CarlFK./  said "you need ... so apt install libfdt-dev02:01
CarlFKtry to re-run, and get: [email protected]:~/temp/tv/qemu-litex$ ./build-litex-qemu.sh02:02
CarlFKmake: *** No targets specified and no makefile found.  Stop.02:02
mithroCarlFK: Did you get more output then that?02:03
mithroCarlFK: What is in your build/ directory?02:04
tpbTitle: Ubuntu Pastebin (at
mithroCarlFK: pull and try again...02:06
CarlFKmithro: good. its CCing stuff now02:06
CarlFKmithro: it finished.  trying the first "to use..." errors:
tpbTitle: Ubuntu Pastebin (at
mithroDid you see the lines following that?02:14
mithroCarlFK: If you just want to have something which runs straight away, use the one inside the HDMI2USB firmware02:16
CarlFKmithro: I don't really have a want, other than to test the instructions and scripts02:17
mithroCarlFK: The HDMI2USB firmware one will get you a H2U> prompt02:17
CarlFKk - I'll try that next02:18
CarlFKmithro: 2nd "to use..." qemu-system-or32: /home/juser/temp/tv/qemu-litex/hw/openrisc/litex.c:194: litex_init: Assertion `CONFIG_CPU_RESET_ADDR == 0' failed.02:18
CarlFKnot much more,
tpbTitle: Ubuntu Pastebin (at
mithroCarlFK: I mean the bios/spiflash lines02:20
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mithroHi futarisWeb!02:34
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CarlFKmithro: I don't think this works the way you wanted:03:06
CarlFK'NOTE: If you are not building from timvideos or the master branch, optionally export GITHUB_USER and GIT_BRANCH...03:07
CarlFKcurl -fsS$GITHUB_USER/HDMI2USB-litex-firmware/$GIT_BRANCH/scripts/bootstrap.sh03:07
CarlFKcurl: (22) The requested URL returned error: 404 Not Found03:07
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futarisWebmithro: Good job on QEMU / lm32. Should be enough to get me started on the changes for the peripherals in the kernel.03:17
mithrofutarisWeb: You mean or1k?03:20
futarisWebWhoops. Yeah, or1k. :)03:21
mithrofutarisWeb: UART first :-P03:48
mithrofutarisWeb: Guess we should figure out how to generate a device tree fragment03:50
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futarisWebarch/openrisc/boot/dts/ or1ksim.dts de0_nano.dts etc ...03:59
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karankindly review my proposal for the project of  conversion of jpeg encoder
tpbTitle: [GSoC16] Project Proposal: Add "Hardware Mixing Support" - Google Docs (at
mithrokaran: That seems to be the wrong link04:09
tpbTitle: Project proposal - Google Docs (at
mithrokaran: Added a bunch of initial comments04:16
karanworking on it ,thanks04:16
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tpbTitle: HDMI2USB-litex-firmware/ at master · timvideos/HDMI2USB-litex-firmware · GitHub (at
CarlFKare these values used anywhere else: GIT_BRANCH=nextgen; export GITHUB_USER=mithro04:37
tpbTitle: HDMI2USB-litex-firmware/ at master · mithro/HDMI2USB-litex-firmware · GitHub (at
CarlFKmithro: that's the same URL04:38
CarlFKoh wait.. mithro04:38
mithroCarlFK: I updated the instructions04:38
mithroWill merge shortly04:38
mithroCarlFK: did that make more sense?04:42
CarlFKmithro: yes.04:43
CarlFKmithro: I am a little skeptical that the 2 vars make things easier.      But I also know that these bootstraping things are hard, so not really sure I know a better way04:45
mithroCarlFK: The scripts inside need the two values04:45
CarlFKah.  then never mind04:45
CarlFKmithro: this is how it ended (fresh machine, so no license file)
tpbTitle: Ubuntu Pastebin (at
mithroI guess that last bit needs to be updated to reference the new file name...04:48
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sam__have you done much testing with 4k input on displayport in hdmi mode?17:06
CarlFKsam__: I am not sure anyone has done anything with the dp17:06
sam__since it has higher bandwidth than the hdmi17:07
CarlFKthe board used for prototyping didn't have any dp hardware17:07
sam__I see17:08
sam__this faq:
sam__talks about DP input and what resolutions it could support17:08
CarlFKcould, not does17:09
CarlFKit is waiting for someone to write the firmware17:09
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sam____lol found an interesting bug with the firmware17:15
sam____ran video_mode command without a param and it crashed my nvidia drivers17:15
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sam____having an issue flashing the opsis..20:59
tpbTitle: debian Pastezone (at
sam____openocd seems to hang20:59
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sam____using -b opsis-prod21:00
tpbTitle: GitHub - mithro/HDMI2USB-mode-switch: Tool for switching boards supported by HDMI2USB firmware between multiple different modes (programming, webcam, etc). (at
sam____I see the same behavior if I flash from "make gateware-load" from
tpbTitle: GitHub - timvideos/HDMI2USB-litex-firmware: A version of the HDMI2USB firmware based around LiteX tools produced by @Enjoy-Digital (based on misoc+migen created by @M-Labs) (at
sam____@mithro ping21:12
sam____.. interesting works when in usb 3.0 mode21:17
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CarlFKsam____: if mithro doesn't get to you first, I'll have some time in about 6 hours ... but it will be me trying to figure it out too.21:53
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mithrosam____: please use head, not a random branch22:36
CarlFKmithro: where to you see a branch?22:47
mithroSee above "-b opsis-prod"22:49
CarlFKmithro: ah.  -b head or remove the -b ?23:05
mithroRemove the -b23:05
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