Hi, can we take this discussion to the developer mailing list? You may need to subscribe at http://lists.milkymist.org so your messages do not go into the moderation queue and you'll get the possible answers from other people.
On 11/27/2013 05:49 PM, Victor Lyuboslavsky wrote: > I tried migen, and I'm running into problems simulating. > I have iverilog 0.9.6 installed in a custom directory > (/usr/share/iverilog-0.9.6) and migensim.vpi installed in > /usr/share/iverilog-0.9.6/lib/ivl. It is not clear how to give this > information to migen -- are there environment variables I should set? > Using Ubuntu 12.04 > > Here is my run: > root@precise64:/work/migen/examples/sim# > /usr/share/python3.3.3/bin/python3 basic1.py > Traceback (most recent call last): > File "basic1.py", line 35, in <module> > main() > File "basic1.py", line 30, in main > sim = Simulator(dut) > File "/work/migen/migen/sim/generic.py", line 88, in __init__ > self.ipc = Initiator(sockaddr) > File "/work/migen/migen/sim/ipc.py", line 145, in __init__ > self.socket.bind(self.sockaddr) > PermissionError: [Errno 1] Operation not permitted This sounds like you do not have permission to create a unix socket in the current directory, or the filesystem does not support it. Can you run mkfifo successfully there? > Question #2. Is it possible to have a generic script that takes a migen > Python file, finds the top level and the ports, and creates a > synthesizable Verilog file. For example: custom_script migen.py > migen.v > This would help with having a more streamlined synthesis flow. I'm not a > Python expert, so I'm not sure how to do this easily. Partly. The ports, and the hierarchy, can be defined at runtime by an algorithm. There is also no clear definition of 'port', but for many practical purposes I think you can assume that all Signal members of Modules whose names do not start with underscores are ports. For extracting the hierarchy, you would need to try instantiating every class defined in the module and see which classes are submodules of which, then take the top of the tree(s). Note that in some designs, many classes require parameters for which they do not provide default values, and that script would not be able to find values for them. Sebastien _______________________________________________ Devel mailing list Devel@lists.milkymist.org https://ssl.serverraum.org/lists/listinfo/devel
