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From: | intermilan |
Subject: | Re: [Discuss-gnuradio] segmentation fault when using a new added block |
Date: | Mon, 18 Apr 2011 16:20:13 +0800 |
Hi all: I have already figured out my problem I mentioned in my last e-mail. That is because I installed two versions of GNU Radio in my computer.So I get the error "segmentation fault".But there is another question. After I uninstalled one version of GnuRadio (now i use gnuradio3.3.0),I use the create-gnuradio-out-of-tree-project command to add a new package which named test.And I did not change the block in the package,so they still were test.square_ff() and test.square2_ff().When I run the test code which is a simple python code,I got this error: AttributeError: 'module' object has no attribute 'square_ff'.So how can I do to figure out this problem?I hope someone can tell me .Thanks in advance. inter From: address@hidden To: address@hidden Date: Thu, 14 Apr 2011 16:09:01 +0800 Subject: [Discuss-gnuradio] segmentation fault when using a new added block hi all: I want to use the gr-howto-write-a-block-3.3.0 (my version of the Gnuradio is 3.3.0)to add a new package or a new block to the gnuradio and grc. At first I did not change anything in the gr-howto-write-a-block-3.3.0, so the name of the new package should be howto,and the name of the block should be howto.square_ff() and howto.square2_ff().I run the follow command as follow: sudo ./bootstrap sudo ./configure --prefix=/usr/local sudo make sudo make check sudo make install After all commands done,everything seems fine (no error appear after make check)and the package looks like been installed. Then I write a small python program to test the new block.Here are the codes: #! /usr/bin/env python from gnuradio import gr import howto class example_block(gr.top_block): def __init__(self): gr.top_block.__init__(self) src = ""> True) thr = gr.throttle(gr.sizeof_float, 32000) sqr =howto.square_ff() dst = gr.file_sink(gr.sizeof_float, "/home/tianxia515/result.dat") self.connect(src,thr) self.connect(thr,sqr) self.connect(sqr,dst) if __name__ == '__main__': tb = example_block() tb.run() But when I run the program in the shell, there is error "segmentation fault".I do not know why does this error happen. I did not change anything in the gr-howto-write-a-block-3.3.0. I hope someone can help me to fix this problem and tell me why this error happen. Thanks in advance. inter. _______________________________________________ Discuss-gnuradio mailing list address@hidden http://lists.gnu.org/mailman/listinfo/discuss-gnuradio |
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