Wednesday, 2018-10-03

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CarlFKmithro: can you add this in somewhere to cut down on the warnings: pip install --upgrade pip00:23
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CarlFKmithro: is there a way to exit flterm that doesn't raise an error code?00:31
mithroCarlFK: What do you mean?00:31
CarlFKmithro: in trying to make a script to test the lca setup, hitting ^c to get out of flterm seems to exit my script00:32
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mithroCarlFK: "flterm || true" might be a temporary work around?00:33
CarlFKmithro: yuck.  at least you understand my problem :p00:34
mithroCarlFK: The code is here ->
tpbTitle: GitHub - timvideos/flterm (at
CarlFKmithro: check this- the cpu is different between qemu and arty: qemu: OpenRISC-0  arty: OpenRISC 1000 (1.1-rev0)00:41
mithroCarlFK: Poke shorne about that....00:41
CarlFKmithro: do we care?  I was looking for something to tell the difference until the /proc/info or whatever thing happens00:42
mithroCarlFK: Dunno, ask shorne :-)00:43
CarlFKshorne:  I don't care, but maybe you do.  /proc/cpuinfo is different  qemu: OpenRISC-0  arty: OpenRISC 1000 (1.1-rev0)00:44
* cr1901_modern should try to get that running when he has free time. Looks fun00:45
CarlFKcr1901_modern: 'that' being linux or1k on qemu/arty?00:46
cr1901_modernarty of course :P00:47
CarlFKI might have a script that just does it.00:50
cr1901_modernOh cool00:51
mithrocr1901_modern: It would be good if you could write a version of which targets the tinyfpga-bx00:51
tpbTitle: HowTo FuPy on a Digilent Arty A7 · timvideos/litex-buildenv Wiki · GitHub (at
cr1901_modernhow fast does or1k run on arty?00:51
mithrocr1901_modern: Dunno, 100Mhz maybe?00:51
cr1901_modern1/7th of the Broadcom devboard ain't bad :)00:51
mithrocr1901_modern: Yeah - looks like we use the same frequency as for all the cores (lm32, or1k, picorv32, vexriscv)00:52
CarlFKcr1901_modern: not fast enough to watch cat videos, so kinda worthless :p00:52
cr1901_modernhrm :(00:52
cr1901_modernIs X even ported to or1k?00:52
tpbTitle: litex-buildenv/ at master · timvideos/litex-buildenv · GitHub (at
mithrocr1901_modern: Well the HDMI output could be a basic frame buffer, so it might be pretty easy to do...00:53
* cr1901_modern has seen parts of X00:53
cr1901_modern"easy" is not the word I'd use to describe it00:53
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CarlFKmithro:  maybe ^C doesn03:15
CarlFKmithro:  maybe ^C doesn't cause flterm to return an error code. fyi.03:15
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CarlFKmithro: do your flterm boots try to tftp and then fall back to serial?04:22
mithroCarlFK: hrm? "make firmware-connect" only connects, "make firmware-load" will load serial boot04:25
mithroCarlFK: the bios tries tftpd then serial I think?04:26
CarlFKah, that's what does it.  ok.04:26
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shorneCarlFK: I know why cpuinfo is different, but it doesnt really matter, the version reported in the version spr is different13:15
shornemithro: SimConfig is a object that needs to be passed the the sim toolchain .build() function.  Its not being created or passed by litex so the build is failing.13:17
shorneSimConfig is used by SimVerilatorToolchain13:20
shorneIts then used to create a json file of the module configuration which is used by the litex_sim to initialize modules13:26
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CarlFKshorne: good.14:02
CarlFKmithro: it isn't the +x that is making flterm ^c abort the script.  I think "make" is doing it. ...14:05
CarlFKmithro: I didn't set +x, and it still aborts, but I think only when hooked to Arty, not qemu.  (which makes no sense to me)14:06
CarlFKmithro: targets/arty/ recipe for target 'firmware-connect-arty' failed
tpbTitle: Ubuntu Pastebin (at
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CarlFKcr1901_modern:   I have a script now that does it all on debian/ubuntu.  I'd love love love for anyone here to give it a run.  extra credit if you can figure out how to keep it from exiting (see the paste ^^^)14:14
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mithroCarlFK: you know were to find the flterm code....16:14
CarlFKmithro: too much work :p16:14
CarlFKmithro: it isn't critical, it doesn't really block anything, just weird16:15
CarlFKmithro: in good news, LCA fpga howto  all works.16:18
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CarlFKtac-tics: this now 100% works
tpbTitle: HowTo LCA2018 FPGA Miniconf · timvideos/litex-buildenv Wiki · GitHub (at
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mithronrossi: You about?18:40
mithronrossi: Just responding to your comments in the doc18:43
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cr1901_modernCarlFK: Can I see the script? The paste is just the output it seems20:27
cr1901_modernI'll play w/ it later tonight, right now gotta port All The Boards20:27
tpbTitle: Ubuntu Pastebin (at
CarlFKcr1901_modern: I've been doing a minimal install of debian (using our voctomix installer, thuse the "turn off vocto" thing)  scp that script over, run it.20:32
CarlFKdid ubuntu a bit too, but not recently, but im sure it is fine20:32
CarlFKI have to ^c out of the flterm prompts, and sometimes hit the Arty's reset button, which sometimes seems to abort things...20:33
CarlFKbut I can kinda delete lines of script (like git clone...) and re run it and get to the end20:33
CarlFKthus proving if you did it all by hand, it would work20:34
cr1901_modernCarlFK: I may need to modify this script for my own needs then. I don't have a minimum debian install. Just an Ubuntu machine in the living room :P20:34
CarlFKfor sure - and who knows how you want to get Vavado on it, etc20:34
CarlFKit isn't at all meant for public consumption, but if it helps you out, good.20:35
CarlFKor just read the LCA howto and comment on it.  im sure the words for humans need help, but not sure what20:35
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mithroCarlFK: well, time to break it again then!21:47
* cr1901_modern wish he had time to get conda running on appveyor :(21:49
cr1901_moderninstead I'm now doing most dev on an Xpra connection to a Linux box right now21:49
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mithrocr1901_modern: How goes the evn platform?22:11
cr1901_modernmithro: Working on it now. At least I can talk to it :P22:14
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cr1901_modernmithro: Do you mind manually adding a commit to remove these lines?
tpbTitle: litex-buildenv/ at master · timvideos/litex-buildenv · GitHub (at
cr1901_modernThey were debugging aids for me that I accidentally committed22:33
cr1901_modernThey aren't useful anymore, don't change code functionality, and I don't think it's worth the overhead of CI/PR22:34
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mithrocr1901_modern: Is there a way to use yosys with vivado in migen at the moment?22:44
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cr1901_modernmithro: No, only w/ ISE I think22:51
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cr1901_modernmithro: Current status is "I got it integrated into litex-buildenv but the BIOS isn't booting." And yes, _this time_ I remembered to set the SPI flash dummy bits appropriately :P23:33
mithrocr1901_modern: Have you tried reading the spi flash in some way?23:33
cr1901_modernNo I'll do that next23:33
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