Re: [Discuss-gnuradio] RTTY receiver

[barry]

Thank you for your response. Since this is my first issue on 
'discuss-gnuradio', I am not sure how to get my reply to you posted in 
the thread. This looks like it might work. If not, please let me know 
what to do.

I did the "sudo ldconfig" and it got rid of the "include could not find 
load file: GrPython", but not the other problem, so I decided to start 
from scratch.

I have
Raspberry Pi 3 B+
Rasbian Linux (v2)

I deleted the folder 'gr-radioteletype'
download zip from https://github.com/bitglue/gr-radioteletype
extract zip to /home/pi
cd ~/gr-radioteletype-master
mkdir build
cd build
cmake ../
make
[  5%] Building CXX object 
lib/CMakeFiles/gnuradio-radioteletype.dir/async_word_extractor_bb_impl.cc.o
[ 10%] Building CXX object 
lib/CMakeFiles/gnuradio-radioteletype.dir/baudot_decode_bb_impl.cc.o
[ 15%] Building CXX object 
lib/CMakeFiles/gnuradio-radioteletype.dir/baudot_encode_bb_impl.cc.o
In file included from 
/home/pi/gr-radioteletype-master/lib/baudot_encode_bb_impl.cc:26:0:
/home/pi/gr-radioteletype-master/lib/baudot_encode_bb_impl.h:65:5: 
error: narrowing conversion of ‘-1’ from ‘int’ to ‘char’ inside { } 
[-Wnarrowing]
     };
     ^
/home/pi/gr-radioteletype-master/lib/baudot_encode_bb_impl.h:100:5: 
error: narrowing conversion of ‘-1’ from ‘int’ to ‘char’ inside { } 
[-Wnarrowing]
     };
     ^
/home/pi/gr-radioteletype-master/lib/baudot_encode_bb_impl.h:100:5: 
error: narrowing conversion of ‘-1’ from ‘int’ to ‘char’ inside { } 
[-Wnarrowing]
lib/CMakeFiles/gnuradio-radioteletype.dir/build.make:110: recipe for 
target 
'lib/CMakeFiles/gnuradio-radioteletype.dir/baudot_encode_bb_impl.cc.o' 
failed
make[2]: *** 
[lib/CMakeFiles/gnuradio-radioteletype.dir/baudot_encode_bb_impl.cc.o] 
Error 1
CMakeFiles/Makefile2:137: recipe for target 
'lib/CMakeFiles/gnuradio-radioteletype.dir/all' failed
make[1]: *** [lib/CMakeFiles/gnuradio-radioteletype.dir/all] Error 2
Makefile:138: recipe for target 'all' failed
make: *** [all] Error 2

Both of the error messages were repeated *many* times. I looked at the 
code for baudot_encode_bb_impl.h, but could not see any problems with 
it.

I appreciate any help you can give.

Best wishes,

Barry

On 2019-06-10 00:29, Kyeong Su Shin wrote:
> Hello Barry:
>
> Did you try "sudo ldconfig"?
>
> If so, could you provide us the relevant software versions (GNU Radio
> version, Linux distro type, etc) and the full steps that you took to
> build the module? gr-radioteletype from "
> https://github.com/bitglue/gr-radioteletype/ " builds and runs fine on
> my machine (tm).
>
>
> Regards,
>
> Kyeong Su Shin
>
>
> ________________________________
> 보낸 사람: address@hidden <address@hidden> 대신 Discuss-gnuradio
> <discuss-gnuradio-bounces+ksshin=address@hidden>
> 보낸 날짜: 2019년 6월 10일 월요일 오전 5:08:32
> 받는 사람: address@hidden
> 제목: [Discuss-gnuradio] RTTY receiver
>
> I have been a real-time programmer for over 50 years, and a ham for 66
> years, but am new to Gnu Radio. My project is to build a complete RTTY
> receiver with SDR. In looking about for any applicable code, I found
> gr-radioteletype, but seem to be missing some of the pieces. Using the
> cmake, make, and make install steps I was able to get the flow graph to
> work, but when I try to execute it I get:
>
> "from radioteletype.demodulators import rtty_demod_cb
>    No module named radioteletype.demodulators"
> and
> "include could not find load file: GrPython"
>
> What am I missing? I have searched for GrPython and not found any
> mention of it.
>
> As an alternative, I have the RTTY signal demodulated into a bit 
> stream,
> and I have Python code to extract RTTY characters from a bit stream, 
> but
> haven't figured out how to plug the two together.
>
> Any help on either issue would be appreciated greatly.
>
> Thanks, Barry KV4FV
>
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