Rakesh
12/07/2022, 6:56 AMRuige Lee
12/07/2022, 7:45 AMSynopsys/Cadence/Mentor
is not the open-source software, but commercial software.
We are enjoying the free lunch for tape-out chips, so why not help the teams to dig the bugs out.Austin Rovinski
12/07/2022, 4:21 PMNo one is working for free there
I am. We have several community contributors who are not paid to work on these projects. If you see any problems, you are welcome to submit pull requests.
Charlie
12/09/2022, 4:06 AMCharlie
12/09/2022, 4:09 AMEgor Lukyanchenko
12/09/2022, 5:46 AMIn addition, I think the idea of putting caravel around everyone's design is also fundamentally flawed and have led to multiple disappointments. Nobody, I repeat, nobody, I've ever talked to think it is a good idea.I totaly think it's a great idea. In my experience designing padring and package usually is very time consuming and a pain in the ass. Package related design issues quite frequently lead to unusable chips even than internal logic is 100% correct. Taking into account that most people here are not professional ASIC designers, it was a smart move to remove this design step from Open MPW user responsibility and create a unified test harness. Yes, Caravel had some serious issues on first runs, but that was totally expected in my opinion. And who said that your personal one shot padring and package would be glitch free on the first run? What about 40 different packages? Apart from that there are a lot of other benefits like unified test board and a possibility to check all chips at efabless, which is crucial at this point of flow and Open MPW development. It would be great to have some tapeout option for experienced analog designers who can design everything by themselves, but for now Caravel requirement is totaly justified. For now it seems that fraction of people who can (and have enough free time) to design and throghtfully document a chip from scratch is quite small here anyway.
Matt Venn
12/09/2022, 10:48 AMMatt Venn
12/09/2022, 10:49 AMMatt Liberty
12/09/2022, 9:52 PMMatt Liberty
12/09/2022, 9:53 PMSiva Prasad
12/12/2022, 6:36 PMMatt Liberty
12/12/2022, 6:37 PMRolf Widenfelt
12/14/2022, 1:25 AM