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From: | Damindra Bandara |
Subject: | Re: [Discuss-gnuradio] Modifying OFDM-TX block get an additional output |
Date: | Sat, 24 Dec 2016 09:47:18 -0500 |
On Fri, Dec 23, 2016 8:57 PM, Damindra Bandara address@hidden wrote:
Dear Kartik,Thank you for your response. It solved the problem.DamindraOn Fri, Dec 23, 2016 at 2:31 AM, Kartik Patel <address@hidden> wrote:
Hi Damindra,The error shows that gr.io_signature can take 3 arguments. In your case you have added 4 arguments. Now, when we look at some examples of gr.io_signature for python, we can see that the function you are looking for is gr.io_singature2 (link). So, the statement would be as follows:gr.hier_block2.__init__(self, "ofdm_tx",gr.io_signature(1, 1, gr.sizeof_char), gr.io_signature2(2, 2, gr.sizeof_gr_complex, gr.sizeof_gr_complex)) This should solve the problem. Let me know if problem still persists.Also, if there's any other way this problem can be approached, I will glad to know it.Regards,Kartik Patel
On Fri, Dec 23, 2016 3:17 AM, Damindra Bandara address@hidden wrote:
I also added the following to digital_ofdm_tx.xml as,Hi,I am trying to modify OFDM-TX block to get an additional output after the payload_mod block(Payload Constellation modulator). I modified the ofdm_txrx.py file in /gr-digital/python/digital as follows.
gr.hier_block2.__init__(self, "ofdm_tx",
gr.io_signature(1, 1, gr.sizeof_char),
gr.io_signature(1, 2, gr.sizeof_gr_complex,gr.sizeof_gr_complex))
self.connect((payload_mod), (self, 1))
<source>
<name>New out</name>
<type>complex</type>
<optional>1</optional>
</source>After make install I can see the additional output port. But when I try to run it I get the following error.
gr.io_signature(1, 2, gr.sizeof_gr_complex,gr.sizeof_gr_complex))
TypeError: make() takes exactly 3 arguments (4 given)Could you please let me know whether there are any additional changes that I have to do to make this work.Thank you,Damindra--Damindra Savithri Bandara,Ph.D. in Information Technology (Candidate)
George Mason University,
Fairfax,
Virginia--Damindra Savithri Bandara,Ph.D. in Information Technology (Candidate)
George Mason University,
Fairfax,
Virginia
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