Monday, 2023-09-04

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markos_lkcl, 18 months for working ddr3 seems unreasonably long. I am pretty sure that a focused developer can get it working in a couple of months, tops. This is not something that has not been achieved before, we're not treading in unknown waters here, nor are we reinventing the wheel.08:27
markos_this is just glueing existing components to get them working together08:28
markos_also, I don't care if nlnet want to pay this in someone else's grant, money is *not* the object here, this is important enough for the progress of the project08:30
markos_s/this/hyperram pmods/08:30
markos_they can do that in parallel, it doesn't matter08:30
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markos_in anycase, I don't want to argue on this forever, if we disagree it's fine, but I'm just going to let you know that in that case I will investigate this by myself. Regardless the outcome, at least I will learn some HDL/Verilog in the process08:34
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lkclmarkos_: a good one to attempt - to give you some idea - is to get both microwatt (joel shenki's microwatt-5.7) and that litex vexrisk-5 demo up-and-running.09:30
lkclthe length of time it takes just to get the dev-environment set up will give you a clearer idea09:31
markos_ok, thanks for the suggestion09:31
lkclmicrowatt on the arty-a7-100t should work out-of-the-box, following joel's instructions, as long as you install the vivado proprietary toolchain09:32
lkclyou'll need the buildroot that i managed to grab a copy of *before* someone in IBM's Legal told them not to distribute binaries, it's on the ftp site09:32
lkcl(attempting to repro-build that microwatt-patched buildroot that joel did does not go well)09:33
lkclbottom line is, there is a reason why the people who do this stuff are paid EUR 125-250 an hour to do it, and it will be good for you to get a "feel" for the sheer amount of detail09:35
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markos_I'm no stranger to hard tasks09:47
markos_and I seldom quit, my only constraint is time as I already have various projects running09:47
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cesarmarkos_, I have a new bit file for you to try on your Nexys Video10:02
cesarIt's compiled with Symbiflow, which is another libre FPGA toolchain.10:03
cesarPlease do:10:03
cesarcd ~/src/nmigen-boards10:04
cesargit pull10:04
cesarcd nmigen_boards/test/nexys_video/symbiflow10:04
markos_I don't have the board connected right now but I will retry a bit later, in a meeting right now10:04
markos_I will let you know10:05
cesarIt should display a binary counter, on four leds. No switches or serial console on this one.10:06
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openpowerbot[irc] <sadoon[m]1> toshywoshy:  check this out might be better than the 8 core I'm giving away13:26
openpowerbot[irc] <sadoon[m]1>
openpowerbot[irc] <sadoon[m]1> markos found this earlier13:26
openpowerbot[irc] <sadoon[m]1> 22 core for 800$ is dirt cheap13:26
openpowerbot[irc] <sadoon[m]1> 725*13:27
openpowerbot[irc] <sadoon[m]1> Also anyone looking for a POWER9 CPU you should really get this while supplies last13:28
openpowerbot[irc] <sadoon[m]1> There's 12 left13:28
openpowerbot[irc] <sadoon[m]1> Oh it says 41 left, awesome13:28
openpowerbot[irc] <sadoon[m]1> I sent the 8 core today anyway, but do also consider these 22 cores14:02
markos_I am finally geting my hands today on the 12c P9s I ordered, it arrived quite early but I was away and it was just waiting in the courier's office for 2 weeks :)14:13
openpowerbot[irc] <sadoon[m]1> Awesome14:16
octaviuseven with the cpu, how much would the barebones server cost?14:27
markos_the Talos II?14:31
markos_it's still expensive14:31
markos_but cheaper in total if you would buy the P9 at full price14:32
openpowerbot[irc] <sadoon[m]1> Yep the real problem these days is getting your hands on a motherboard14:34
openpowerbot[irc] <sadoon[m]1> Someone is selling his board with an 8 core and got in touch with lkcl14:34
openpowerbot[irc] <sadoon[m]1> Your second best option is getting a server on the used market, POWER9 preferably14:36
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