Hi Christophe,
After I run "python3 fm_rx.py", I got this message:
==========
Traceback (most recent call last):
File "fm_rx.py", line 508, in <module>
main()
File "fm_rx.py", line 486, in main
tb = top_block_cls()
File "fm_rx.py", line 252, in __init__
window.WIN_BLACKMAN_hARRIS, #wintype
AttributeError: type object 'gnuradio.fft.fft_python.window' has no
attribute 'WIN_BLACKMAN_hARRIS'
==========
Seems like it couldn't find the correct window type...?
Best regards,
Clark
On Fri, Apr 9, 2021 at 12:50 PM Christophe Seguinot <
christophe.segui...@orange.fr> wrote:
> Could you please copy these files for som folder:
>
> - dummy.dat is generated by fm_tx.grc
> - fm_rx.py is generated from frm;_rx.grc flowgraph
>
> and try to run the .py file:
>
> - python3 fm_rx.py
>
> may be you could get a more explicit error for line with
> firdes.low_pass_2(self.volume...)
>
>
> On 09/04/2021 18:11, Clark Chiu wrote:
>
> Hi Christophe and Marcus,
>
> Thank you for the reply. I tried the fm_tx_2.grc and it has the same error
> message as below.
> =======
> Block: pfb_arb_resampler_xxx_0
> Aspect: Param 'Taps'
> Message: Expression None is invalid for type'real_vector'.
> =======
> Also the files between master and maint-3.9 are identical.
> "git diff maint-3.9 master gr-analog/examples/fm_?x.grc"
>
> I don't think I had a previous version of GNU Radio before. I installed
> GNU Radio from the binary package. I tried to delete the cache file and the
> cache folder then restart GRC but it is the same.
>
> Any other suggestions?
>
>
> Best regards,
> Clark
>
>
> On Fri, Apr 9, 2021 at 9:19 AM Christophe Seguinot <
> christophe.segui...@orange.fr> wrote:
>
>> Hi Clark
>>
>> I'm running under Ubuntu 20.04 and GNURadio 3.9 fresh install (my
>> Computer and HDD were out for several days an I had to reinstall Linux)
>>
>> I downloaded maint-3.8 fm_tx.grc and fm_rx.grc. They worked at the first
>> run without any problem. (I only had to remove
>> ~/.cache/grc_gnuradio/cache.json cahce file because I previously used
>> another version of GR on this computer)
>>
>> I attached my fm_tx_2.grc file (the downloaded one, renamed and
>> runned/saved under GR3.9)
>>
>> 1. try to run this .grc file.
>> 2. if it run, can you send your file to see where the issue come
>> from?
>> 3. if it doesn't run .. ??
>>
>> Regards Christophe
>> On 08/04/2021 21:24, Clark Chiu wrote:
>>
>> Btw, I am using Ubuntu 18.04
>>
>> On Wed, Apr 7, 2021 at 11:39 PM Clark Chiu <clark...@gmail.com> wrote:
>>
>>> Hi Marcus,
>>>
>>> I am using 3.9 for the GNU Radio. I ran the example from the latest
>>> master branch of github. I see from the CHANGELOG.md it should be the same
>>> 3.9 right?
>>> Thanks.
>>>
>>> Best regards,
>>> Kuan-lin
>>>
>>> On Wed, Apr 7, 2021 at 7:12 PM Marcus Müller <muel...@kit.edu> wrote:
>>>
>>>> Hi Clark,
>>>>
>>>> which version of GNU Radio are you using, and is the folder from which
>>>> you're taking these
>>>> examples from the same version?
>>>>
>>>> Thank you for your answer!
>>>> Marcus
>>>>
>>>> On 07.04.21 23:35, Clark Chiu wrote:
>>>> > Hello,
>>>> >
>>>> > I am new to GNU Radio and I am trying to understand more by checking
>>>> the fm_rx and fm_tx
>>>> > examples in the gnuradio/gr-analog/examples folder. I open these two
>>>> grc files from the
>>>> > GNU Radio Companion. Out of box, there is an error message in
>>>> Polyphase Arbitrary
>>>> > Resampler saying Expression None is invalid for type `real_vector` of
>>>> parameter `Taps`. I
>>>> > tried to google around the forum and the internet but I couldn't find
>>>> anything useful to
>>>> > fix this. I doubt it has something to do with the last parameter
>>>> "window.WIN_KAISER" but I
>>>> > am not sure.
>>>> >
>>>> > Could anyone give me some pointers?
>>>> > Thank you in advance.
>>>> >
>>>> >
>>>> > Best regards,
>>>> > Clark
>>>>
>>>>
