Re: [Discuss-gnuradio] Rational Resampler no output.

Hi Marcus: Not working, don't have time to debug now, will look at it this weekend. But the bug got triggered at i == ntaps - 1 and not i == 0? Regards: Cor On Tue, 2017-06-27 at 12:03 +0200, Marcus Müller wrote: > > Hi Cor, > hopefully, I have a fix: Could you try > git pull

Re: [Discuss-gnuradio] Rational Resampler no output.

Hi Cor, hopefully, I have a fix: Could you try git pull https://github.com/marcusmueller/gnuradio window_fix_floating_point_math (or, alternatively, attached patch, cd gnuradio; git apply /path/to/patchfile.patch ) Thank you!! Marcus On 27.06.2017 07:09, Cor Legemaat wrote: >

Re: [Discuss-gnuradio] Rational Resampler no output.

https://github.com/gnuradio/gnuradio/issues/1348 Regards: Cor On Mon, 2017-06-26 at 14:11 +0200, Marcus Müller wrote: > > That's mightily interesting! I feel like we should be doing bug >   reports, but I'm not sure where. > > > > > On 26.06.2017 06:42, Cor Legemaat >    

Re: [Discuss-gnuradio] Rational Resampler no output.

That's mightily interesting! I feel like we should be doing bug reports, but I'm not sure where. On 26.06.2017 06:42, Cor Legemaat wrote: > Found it: > > Created an C++ app that called that function with the same parameter > values as with python for this flow graph. Witch I was able to debug >

Re: [Discuss-gnuradio] Rational Resampler no output.

Found it: Created an C++ app that called that function with the same parameter values as with python for this flow graph. Witch I was able to debug normally. In window.cc line 265, with i = ntaps - 1, temp = 1.002 that cause sqrt (0) witch return "-nan" on the next line and screw

Re: [Discuss-gnuradio] Rational Resampler no output.

Hi: Sorry for the late replay... The intel pc call filter.firdes.low_pass with the same values but return 768 proper float values, not like the 's on the AMD pc. Tried to debug with "nemiver /usr/bin/python2.7 -u /fm_receiver.py" and the breakpoint at firdes.cc line 100 witch get triggered and I

Re: [Discuss-gnuradio] Rational Resampler no output.

I have an AMD system with the same chip running Ubuntu 16.xx. I can probably try to duplicate this weekend, if Cor doesn't get to it, as another data point. On Jun 5, 2017 3:14 PM, "Marcus Müller" wrote: Hi Cor, Excuse the language, but frk. Ok, looks like we have

Re: [Discuss-gnuradio] Rational Resampler no output.

Hi Cor, Excuse the language, but frk. Ok, looks like we have a bug in low_pass. Or in GCC. Or SWIG (which does the python-wrapping of the code in firdes.cc). yay. So, let's narrow this down: on intel and amd64, same number of taps, right? Then: If I asked you to use GDB to verify the C++

Re: [Discuss-gnuradio] Rational Resampler no output.

Hi: filter.firdes.low_pass get called with: * fractional_bw = 0.4 * trans_width = 0.1 * mid_transition_band = 0.45 * interpolation = 24 But return: (nan, <788 times nan>) Regards: Cor On Tue, 2017-05-30 at 00:06 +0200, Marcus Müller wrote: > Hi Cor, > >  * When using 1 as "taps" there is

Re: [Discuss-gnuradio] Rational Resampler no output.

Hi Cor, > * When using 1 as "taps" there is output. Aha!! So, here's the thing: something might be going wrong in the python code that sets up the taps automatically if you don't set them explicitly. Maybe you can figure out where things go wrong; the interesting part (maybe add some `print`s

Re: [Discuss-gnuradio] Rational Resampler no output.

Hi: * The only warning is about the thread priority but that's on both. * Type "Complex->Complex (Complex Taps)" * When using 1 as "taps" there is output. I can open it in Nemiver if I know where to put the break point... Regards: Cor On Mon, 2017-05-29 at 11:36 +0200, Marcus Müller wrote:

[Discuss-gnuradio] Rational Resampler no output.

Hi: I have 2 different hardware setup's with funtoo/gentoo and gnuradio installed. On the Intel system the "Rational Resampler" is working correctly but on the AMD system there is no output. This is on a flow graph for an basic wide band fm receiver based on the USPR 10min fm receiver tutorial.