| *** tpb has joined #yosys | 00:00 | |
| *** Degi_ has joined #yosys | 00:16 | |
| *** Degi has quit IRC | 00:19 | |
| *** Degi_ is now known as Degi | 00:19 | |
| *** emeb has quit IRC | 00:33 | |
| *** adjtm has joined #yosys | 00:43 | |
| *** citypw has joined #yosys | 01:20 | |
| *** npe has quit IRC | 01:30 | |
| *** craigo has joined #yosys | 02:15 | |
| *** ebb has quit IRC | 02:29 | |
| *** ebb has joined #yosys | 02:32 | |
| *** npe has joined #yosys | 02:34 | |
| *** proteusguy has quit IRC | 02:42 | |
| *** proteusguy has joined #yosys | 02:56 | |
| *** npe has quit IRC | 03:36 | |
| *** npe has joined #yosys | 03:36 | |
| *** npe has quit IRC | 03:37 | |
| *** npe has joined #yosys | 03:37 | |
| *** npe has joined #yosys | 03:38 | |
| *** npe has joined #yosys | 03:38 | |
| *** npe has joined #yosys | 03:39 | |
| *** npe has joined #yosys | 03:40 | |
| *** npe has quit IRC | 03:40 | |
| *** npe has joined #yosys | 03:41 | |
| *** npe has joined #yosys | 03:41 | |
| *** npe has joined #yosys | 03:42 | |
| *** npe has joined #yosys | 03:43 | |
| *** npe has quit IRC | 03:43 | |
| *** npe has joined #yosys | 03:44 | |
| *** npe has joined #yosys | 03:45 | |
| *** npe has joined #yosys | 03:46 | |
| *** npe has quit IRC | 03:47 | |
| *** npe has joined #yosys | 03:47 | |
| *** npe has joined #yosys | 03:48 | |
| *** npe has joined #yosys | 03:48 | |
| *** npe has joined #yosys | 03:49 | |
| *** npe has joined #yosys | 03:50 | |
| *** npe has quit IRC | 03:50 | |
| *** npe has joined #yosys | 03:52 | |
| *** npe has joined #yosys | 04:05 | |
| *** npe has quit IRC | 05:14 | |
| *** npe has joined #yosys | 05:16 | |
| *** Vinalon has quit IRC | 05:29 | |
| *** Vinalon has joined #yosys | 05:45 | |
| *** _whitelogger has quit IRC | 06:09 | |
| *** _whitelogger has joined #yosys | 06:11 | |
| *** Ultrasauce has quit IRC | 06:13 | |
| *** rohitksingh has quit IRC | 06:13 | |
| *** promach3 has quit IRC | 06:13 | |
| *** kmehall has quit IRC | 06:13 | |
| *** GenTooMan has quit IRC | 06:13 | |
| *** awygle has quit IRC | 06:13 | |
| *** Ultrasauce has joined #yosys | 06:15 | |
| *** rohitksingh has joined #yosys | 06:15 | |
| *** promach3 has joined #yosys | 06:15 | |
| *** kmehall has joined #yosys | 06:15 | |
| *** GenTooMan has joined #yosys | 06:15 | |
| *** awygle has joined #yosys | 06:15 | |
| *** npe has quit IRC | 06:19 | |
| *** emeb_mac has quit IRC | 06:55 | |
| *** qu1j0t3 has quit IRC | 08:25 | |
| *** qu1j0t3 has joined #yosys | 08:27 | |
| pepijndevos | What does a barebones asic synth script look like? Basically just synth and map to a liberty file | 08:48 |
|---|---|---|
| daveshah | Yeah | 08:49 |
| daveshah | also a dfflibmap to map DFFs to liberty | 08:49 |
| daveshah | See the bottom of | 08:50 |
| daveshah | http://www.clifford.at/yosys/ | 08:50 |
| tpb | Title: Yosys Open SYnthesis Suite :: About (at www.clifford.at) | 08:50 |
| *** janrinze has joined #yosys | 08:50 | |
| pepijndevos | ok, lets goooo | 08:50 |
| pepijndevos | it.... just worked?? | 08:57 |
| pepijndevos | I took a UMC65 liberty file, removed a few items that Yosys chocked on, and synthesized a thing with it. | 08:57 |
| daveshah | Cool! | 08:58 |
| pepijndevos | All the cell names are so obscure though... | 08:59 |
| pepijndevos | https://bpaste.net/LL3A I don't know what *any* of those mean | 08:59 |
| tpb | Title: View paste LL3A (at bpaste.net) | 08:59 |
| pepijndevos | The main thing Yosys was not happy about was cells without a defined function on their output pins... which makes some amount of sense. | 09:01 |
| pepijndevos | I guess I could have used -ignore_miss_func instead | 09:01 |
| pepijndevos | Can I pass -ignore_miss_func to abc and dfflibmap? | 09:02 |
| pepijndevos | lol, if I pass -prepare to dfflibmap it leaves $_DFF_P_ cells... is that a bug? Docs say it converts to dff types found in the liberty | 09:04 |
| daveshah | No, that's the point of -prepare | 09:06 |
| daveshah | It converts flops to the closest internal cell type | 09:07 |
| daveshah | without actually mapping | 09:07 |
| pepijndevos | ah I see | 09:07 |
| pepijndevos | hrm, it seems neither abc nor dfflibmap supports -ignore_miss_func | 09:09 |
| *** vidbina_ has joined #yosys | 09:09 | |
| *** janrinze has quit IRC | 09:18 | |
| *** janrinze has joined #yosys | 09:56 | |
| *** vidbina_ has quit IRC | 10:34 | |
| *** janrinze has quit IRC | 10:41 | |
| *** ayazar has joined #yosys | 11:15 | |
| *** Vinalon has quit IRC | 12:23 | |
| *** X-Scale` has joined #yosys | 12:55 | |
| *** X-Scale has quit IRC | 12:57 | |
| *** X-Scale` is now known as X-Scale | 12:57 | |
| *** futarisIRCcloud has quit IRC | 13:44 | |
| *** emeb has joined #yosys | 14:31 | |
| *** npe has joined #yosys | 14:32 | |
| *** X-Scale` has joined #yosys | 14:50 | |
| *** X-Scale has quit IRC | 14:51 | |
| *** X-Scale` is now known as X-Scale | 14:51 | |
| *** dys has quit IRC | 15:14 | |
| *** Vinalon has joined #yosys | 15:34 | |
| *** npe has quit IRC | 15:51 | |
| *** citypw has quit IRC | 15:59 | |
| *** ayazar has quit IRC | 16:53 | |
| *** craigo has quit IRC | 17:00 | |
| *** twnqx has joined #yosys | 17:33 | |
| lambda | nextpnr-ice40 is having a really hard time with placement right now, only 64% ICESTORM_LC usage and initial placement (with --placer sa) already fails because it can't place one of them :/ | 18:24 |
| daveshah | Try --dffe_min_ce_use 4 passed to synth_ice40 | 18:25 |
| daveshah | -dffe_min_ce_use | 18:25 |
| daveshah | This usually results from large numbers of FFs with different control sets | 18:26 |
| lambda | hah, that does it :D still not sure what caused it to suddenly fail at all, it worked an hour ago and I swear I didn't change anything | 18:26 |
| lambda | HeAP doesn't stand a chance with this design, too | 18:28 |
| daveshah | What is the context, a lot of set/resets and enables for some reason? | 18:29 |
| lambda | SPI to 10x UART, so one giant 80-bit shift register and 10 8-bit shift registers | 18:30 |
| lambda | might just be better to run the UART off a divided clock instead of a clock enable though, I think I have some global buffers left over | 18:31 |
| *** voxadam_ has joined #yosys | 18:32 | |
| *** voxadam has quit IRC | 18:32 | |
| *** vidbina_ has joined #yosys | 18:57 | |
| lambda | hm, I thought I remembered there being an option --device in nextpnr so I wouldn't have to use "--$(DEVICE)" in build scripts, but apparently not | 19:00 |
| *** npe has joined #yosys | 19:02 | |
| *** npe has quit IRC | 19:16 | |
| qu1j0t3 | 6 | 19:31 |
| ZirconiumX | 5 | 19:36 |
| daveshah | 4 | 19:37 |
| lambda | 3 | 19:38 |
| awygle | 2 | 19:39 |
| *** rohitksingh has quit IRC | 19:43 | |
| qu1j0t3 | -2 | 19:44 |
| awygle | Rude | 19:49 |
| *** qu1j0t3 has quit IRC | 19:53 | |
| *** qu1j0t3 has joined #yosys | 19:59 | |
| *** az0re has quit IRC | 20:09 | |
| *** npe has joined #yosys | 20:21 | |
| *** emeb_mac has joined #yosys | 20:33 | |
| *** az0re has joined #yosys | 20:52 | |
| awygle | Out of curiosity is libyosys maintained? | 21:54 |
| daveshah | It certainly should work, although I don't know how well used it is | 21:55 |
| awygle | I see, thanks | 22:01 |
| awygle | Does it expose the cpp api or a C wrapper? | 22:01 |
| daveshah | C++ API, there is no C wrapper | 22:03 |
| daveshah | There is a Python wrapper | 22:03 |
| awygle | Huh. Would have thought that'd almost require a C wrapper | 22:04 |
| daveshah | Writing a C wrapper for Yosys would be an absolute nightmare | 22:05 |
| daveshah | Considering all the different data structures | 22:05 |
| awygle | well, sure lol | 22:11 |
| awygle | that's why i was interested in if somebody'd done the work already :p | 22:12 |
| daveshah | Stuff like the IdString ref counting would be interesting... | 22:12 |
| *** az0re has quit IRC | 22:22 | |
| *** rohitksingh has joined #yosys | 22:41 | |
| *** vidbina_ has quit IRC | 22:44 | |
| *** futarisIRCcloud has joined #yosys | 23:05 | |
Generated by irclog2html.py 2.17.2 by Marius Gedminas - find it at https://mg.pov.lt/irclog2html/!