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| vancz | Does yosys do warning and linting and such? I accidentally some verilog where I did a two bit case statement on a register I accidentally made only 1 bit. | 02:01 |
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| lofty[m] | For linting use a linter; Verilator would probably catch it | 02:14 |
| vancz | guess I need to combine more toolchains | 03:18 |
| vancz | I have a basic question; can I assert a signal and then assert another signal to deassert it on the next clock cycle? or do I need a cycle extra in between to notice the deassert signal? | 03:19 |
| vancz | specifically if I have two (software implementations of) chips, one asserts an IRQ, the other detects the IRQ and says to clear it with an IRQ_CLR signal | 03:19 |
| vancz | can I do that in two clock cycles or do I need three? | 03:20 |
| * vancz wonders if he is asking what he actually means to ask | 03:20 | |
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| csantosb | Hi, I wonder if this licensing issue with prjbeyond-db may be solved, https://github.com/YosysHQ-GmbH/prjbeyond-db/issues/2 | 09:16 |
| lofty[m] | csantosb: what's your intended usecase for that? to be quite honest it never worked amazingly well, and it's not like you can use the end result on real hardware | 09:24 |
| csantosb | lofty[m]: packaging nextpnr and all of its supported devices under Guix, see https://issues.guix.gnu.org/78390 | 09:28 |
| tpb | Title: [PATCH electronics-team] gnu: nextpnr: Add ecp5 and himbaechel architectures. (at issues.guix.gnu.org) | 09:28 |
| lofty[m] | csantosb: yeah, I wouldn't bother. | 09:29 |
| lofty[m] | I think the venn diagram of Guix users and people interested in the NanoXplore FPGA is two separate circles | 09:31 |
| csantosb | Unless a license is provided, it cannot be distributed, and this holds for all repositories. | 09:33 |
| lofty[m] | then do not distribute it. nextpnr is modular enough that you can simply not build the ng-ultra uarch. | 09:33 |
| csantosb | Any reason not to ? | 09:34 |
| lofty[m] | have you actually tried to use that architecture? | 09:34 |
| lofty[m] | you cannot use the output of it, because converting the nextpnr output to a usable bitstream requires a license for NanoXplore's Impulse toolchain | 09:35 |
| csantosb | Sure, this is explained in the readme | 09:37 |
| lofty[m] | sorry, I'm really confused here | 09:37 |
| lofty[m] | why do you want to package a toolchain you cannot use for anything. | 09:38 |
| csantosb | For exactly the same reason nextpnr considers it | 09:42 |
| lofty[m] | I do not think your motivation here is "so I could still have a job" | 09:43 |
| csantosb | ? | 09:43 |
| lofty[m] | https://activities.esa.int/4000141380 | 09:44 |
| tpb | Title: An open source FPGA toolchain for a European space-grade FPGA | Activities Portal (at activities.esa.int) | 09:44 |
| lofty[m] | that ESA money partially went towards making sure I still had a job. | 09:45 |
| lofty[m] | in terms of actually making an architecture open-source, this was a dead end from the start because of the dependence on Impulse | 09:46 |
| csantosb | No, unrelated | 09:47 |
| lofty[m] | we published it so we had stuff to show to ESA. | 09:47 |
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