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From: | EJ Kreinar |
Subject: | Re: [Discuss-gnuradio] implementing message ports on an OOT module |
Date: | Wed, 3 May 2017 10:17:09 -0400 |
I had originally asked this question on the USRP site, but it was recommended by someone from Ettus to post over here since there is a chance it is more of a GNURadio issue than USRP.
I am attempting to create an RFNoC block for the X310 and it works fine. I then wanted to add a message port to the block to pass variable into it. The message port shows up in GRC and the flowgraph runs fine as long as I leave the message port disconnected. Once I try to connect something to it, I see the following error:
Could not find port: msg in:
rfnoc
system
Traceback (most recent call last):
File "/home/jmat/rfnoc-multiaperture/examples/CPremoval.py", line 253, in <module>
main()
File "/home/jmat/rfnoc-multiaperture/examples/CPremoval.py", line 241, in main
tb = top_block_cls()
File "/home/jmat/rfnoc-multiaperture/examples/CPremoval.py", line 196, in __init__
self.msg_connect((self.foo_periodic_msg_source_0, 'out'), (self.multiaperture_cpremoval_ 0, 'msg'))
File "/home/jmat/rfnoc/lib/python2.7/dist-packages/gnuradio/gr/hi er_block2.py", line 59, in wrapped
func(self, src.to_basic_block(), srcport, dst.to_basic_block(), dstport)
File "/home/jmat/rfnoc/lib/python2.7/dist-packages/gnuradio/gr/hi er_block2.py", line 131, in msg_connect
self.primitive_msg_connect(*args)
File "/home/jmat/rfnoc/lib/python2.7/dist-packages/gnuradio/gr/ru ntime_swig.py", line 3489, in primitive_msg_connect
return _runtime_swig.top_block_sptr_primitive_msg_connect(self, *args)
RuntimeError: invalid msg port in connect() or disconnect()
>>> Done
I can't for the life of me figure out what GR "could not find." I see other people with similar posts in the past, but I never found a good resolution.
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