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| nono2357 | ok thanks sorear | 03:01 |
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| digshadow | GuzTech: I'm really overloaded right now. Hoping to get back to you soon | 08:14 |
| digshadow | GuzTech: provided some comments on your PR, please let me know if that clarifies what I'm suggesting | 08:17 |
| digshadow | sorear: there is no end to end toolchain that is for general use. There is a pre-alpha developer only version | 08:18 |
| sorear | digshadow: not publically as of a few days ago. yosyshq/nextpnr@xc7 still requires ISE for bitstream gen | 08:18 |
| digshadow | sorear: using vpr | 08:19 |
| sorear | is that the one that doesn't support IOBs? | 08:19 |
| digshadow | well sure :) | 08:19 |
| digshadow | it requires the test harness .bit still | 08:19 |
| digshadow | "pre alpha" | 08:19 |
| digshadow | sorear: would you be interested in looking at the IOBs to help with that? | 08:20 |
| sorear | theoretically, yes, but (a) I've got a bunch of other things going on (b) I'd probably need a fair amount of handholding | 08:21 |
| digshadow | Okay, well maybe a) ping you in a bit b) usually not an issue / I'll do what I can to get you up to speed | 08:26 |
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| mithro | digshadow: https://github.com/SymbiFlow/prjxray/pull/427 | 08:56 |
| tpb | Title: Move settings out of database directory into new settings directory. by mithro · Pull Request #427 · SymbiFlow/prjxray · GitHub (at github.com) | 08:56 |
| digshadow | mithro: fwiw your readme changes will conflict with GuzTech outstanding stuff | 08:58 |
| digshadow | his PR was close. Maybe we should merge that and you rebase on that? | 08:58 |
| digshadow | will => might | 08:58 |
| mithro | Yeah, I can rebase pretty easily | 08:58 |
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| mithro | digshadow: Did an initial rebase ontop of GuzTech's pull request, so make sure to merge his first | 09:10 |
| digshadow | mithro: the issue is that I was proposing some tweaks to his | 09:10 |
| digshadow | if you make the proposed tweaks in yours though | 09:11 |
| mithro | digshadow: Yeah, I can rebase after he fixes that | 09:11 |
| digshadow | I can merge your PR with his rebase? | 09:11 |
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| GuzTech | digshadow: No worries! I removed the warning and added "recommended" to the first option. | 09:27 |
| digshadow | checking | 09:27 |
| digshadow | GuzTech: LGTM! | 09:29 |
| digshadow | Going to merge it | 09:29 |
| digshadow | thanks for sticking with me to sort that stuff out | 09:29 |
| GuzTech | Hey no problem. It's the least I can do :) | 09:30 |
| digshadow | just waiting for travis now | 09:30 |
| digshadow | mithro: I'm going to look for breakfast. Feel free to merge it | 09:30 |
| GuzTech | I want to help with other stuff as well (just like sorear apparently :) ). | 09:30 |
| GuzTech | Let's see what we can unravel about the 7-series. | 09:31 |
| digshadow | GuzTech: is there anything in particular you are intested in | 09:31 |
| digshadow | interested | 09:31 |
| GuzTech | I'd like to start simple to better understand the process, but otherwise I don't know. | 09:31 |
| digshadow | GuzTech: right, but if you for example are interested in a specific part of the fpga, I can guide you through the process | 09:32 |
| GuzTech | mithro mentioned IOBs for example. Pretty important to get that working me thinks. | 09:32 |
| digshadow | GuzTech: sure, if you want to work on it its setup decently right now. But please coordinate with me as I might work on it in the next few weeks | 09:34 |
| digshadow | merged! | 09:35 |
| digshadow | mithro: you can rebase now if you want | 09:35 |
| mithro | GuzTech: Were you at 35c3? | 09:37 |
| mithro | digshadow: Done! | 09:37 |
| sorear | i'm mostly an algorithms person, I'd be jumping on analytic placement if someone else wasn't | 09:37 |
| mithro | sorear: We could use help with things like the routing graph deduping and stuff | 09:38 |
| sorear | yes. i am very interested in that specifically | 09:39 |
| GuzTech | mithro: unfortunately not | 09:41 |
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| GuzTech | digshadow: anything simple you can recommend then? | 09:42 |
| mithro | sorear: https://github.com/SymbiFlow/prjxray/tree/master/fuzzers/074-dump_all is probably a good place to look | 09:42 |
| tpb | Title: prjxray/fuzzers/074-dump_all at master · SymbiFlow/prjxray · GitHub (at github.com) | 09:42 |
| sorear | related thing I'd like: a generic compressed database backend that can handle most common FPGAs | 09:43 |
| sorear | I'll look at that later | 09:43 |
| mithro | sorear: https://github.com/verilog-to-routing/vtr-verilog-to-routing/issues/286 | 09:44 |
| tpb | Title: Proposal for alternative fabric and switch specification format · Issue #286 · verilog-to-routing/vtr-verilog-to-routing · GitHub (at github.com) | 09:44 |
| mithro | sorear: https://github.com/mithro/symbiflow-arch-defs/blob/ice40-generate/ice40/utils/ice40_generate_routing.py | 09:45 |
| tpb | Title: symbiflow-arch-defs/ice40_generate_routing.py at ice40-generate · mithro/symbiflow-arch-defs · GitHub (at github.com) | 09:45 |
| mithro | On my way to Poznan now. Will be in and out as change trains and such... | 10:28 |
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| torgax | hi, I'm new to FPGA's (I got one one a LAN-party as a price, an icestick) and would like to write a really basic CPU using only opensource software. A long time ago, I used yosys, arachne-pnr and another tool to compile for FPGA's, but never got anywhere. What tools would you recommend? I'd like to have some kind of test bench, so I don't have to physically test it everyime. Sorry if this is offtopic | 11:33 |
| sorear | yosys and icestorm is still good, there are a few new options but we don't want everyone to switch immediately | 11:38 |
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| digshadow | GuzTech, mithro : FWIW that is the longest running fuzzer, although definitely could use some help improving performance (such as paralleizing it) | 11:45 |
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| digshadow | hi nono2357 | 12:08 |
| nono2357 | hi | 12:10 |
| nono2357 | I would like to help with the Xilinx series 7 toolchain | 12:11 |
| nono2357 | I'm familiar with Python, Verilog, apio and Vivado, how can I help? | 12:12 |
| mithro | Hi nono2357, I'm currently on a train, so will be in and out | 12:20 |
| mithro | nono2357: How much free time do you have? | 12:21 |
| nono2357 | about 3-4 hours a week | 12:22 |
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| mithro | nono2357: We need a lot of help cleaning up and optimizing the Python stuff in prjxray and in symbiflow-arch-defs | 12:27 |
| nono2357 | any beta test/bug report in the toolchain? | 12:47 |
| nono2357 | would be easier than to understand the whole thing | 12:47 |
| mithro | nono2357: maybe something like https://github.com/SymbiFlow/prjxray/issues/303 | 12:54 |
| tpb | Title: lib prjxray: less dependent on .json files · Issue #303 · SymbiFlow/prjxray · GitHub (at github.com) | 12:54 |
| mithro | https://github.com/SymbiFlow/prjxray/issues/141 | 12:55 |
| tpb | Title: Document and test prjxray library · Issue #141 · SymbiFlow/prjxray · GitHub (at github.com) | 12:55 |
| mithro | nono2357: or https://github.com/SymbiFlow/symbiflow-arch-defs/issues/209 | 12:59 |
| tpb | Title: Create a "pretty printer" for the VTR .net file format · Issue #209 · SymbiFlow/symbiflow-arch-defs · GitHub (at github.com) | 13:00 |
| mithro | nono2357: https://github.com/SymbiFlow/symbiflow-arch-defs/issues/181 that would be a pretty quick one | 13:01 |
| tpb | Title: Write a Python library for decoding Artix-7 wire names · Issue #181 · SymbiFlow/symbiflow-arch-defs · GitHub (at github.com) | 13:01 |
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| GuzTech | Ok, so I've created a simple design that instantiates one OBUFT, with drive strengths 4, 8, 12, and 16 (these are supported by LVCMOS33). | 15:43 |
| GuzTech | I've used bitread and diffed them all. | 15:43 |
| GuzTech | What comes after that? | 15:43 |
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