How do I extract individual values from pmt list and dict
Hello GNURadio Community,
Let's assume the following pmt definitions for a list and and dictionary in
an OOT block:
P_list = pmt.to_pmt([1, 2, 3.45, 'eggs'])
P_dict = pmt.to_pmt({'spam': 20, 'eggs': 40})
How do I explicitly extract the first element in P_list and the value for
'spam' from P_dict?
Thank you!
George
Re: How do I extract individual values from pmt list and dict
Hi George,
first_element = pmt.vector_ref(P_list, 0)
and
spam_element = pmt.dict_ref(P_dict, pmt.to_pmt('spam'), pmt.PMT_NIL)
respectively.
Note that you must not put "payload" data into strings that you put into PMT.
`pmt.to_pmt(str)` generates a PMT symbol, and these are saved for evermore in a global table.
Best regards,
Marcus
On 03.08.22 13:19, George Edwards wrote:
Hello GNURadio Community,
Let's assume the following pmt definitions for a list and and dictionary in an
OOT block:
P_list = pmt.to_pmt([1, 2, 3.45, 'eggs'])
P_dict = pmt.to_pmt({'spam': 20, 'eggs': 40})
How do I explicitly extract the first element in P_list and the value for
'spam' from P_dict?
Thank you!
George
Ubuntu 20.04 cannot find the Hackrf board?
Hello GNURadio Community, I built a grc flowgraph in Gnuradio 3.9.5 on Ubuntu 20.04 inside Microsoft VirtualBox. I have a HackRF One radio hardware. I installed the hackrf drivers in Ubuntu with command: sudo apt-get install -y hackrf and confirmed the installation. I connected the HackRF One board to my computer and in the Terminal prompt entered the command hackrf_info and received the response that it does not see the Hackrf board. And true to form when I ran the flowgraph, I get the following error message: RuntimeError: no hackrf device matches Why is Ubuntu 20.04 running inside MS VirtualBox not seeing the HackRf board with the HackRf drivers installed. And, how do I resolve this issue? Will appreciate any help to resolve this issue. George
Re: Ubuntu 20.04 cannot find the Hackrf board?
Hi George, you'll have to do a bit more investigation on your end, I'm afraid. We don't know how you set up your VM, or how you're passing through the USB driver. Generally, USB passthrough comes at a high overhead, and sometimes that's prohibitively slow, as well. Also, why do VirtualBox (and that's not a Microsoft product, so I'm really confused by what you're referring to), if you can have WSL2? Best regards, Marcus On 03.08.22 14:15, George Edwards wrote: Hello GNURadio Community, I built a grc flowgraph in Gnuradio 3.9.5 on Ubuntu 20.04 inside Microsoft VirtualBox. I have a HackRF One radio hardware. I installed the hackrf drivers in Ubuntu with command: sudo apt-get install -y hackrf and confirmed the installation. I connected the HackRF One board to my computer and in the Terminal prompt entered the command hackrf_info and received the response that it does not see the Hackrf board. And true to form when I ran the flowgraph, I get the following error message: RuntimeError: no hackrf device matches Why is Ubuntu 20.04 running inside MS VirtualBox not seeing the HackRf board with the HackRf drivers installed. And, how do I resolve this issue? Will appreciate any help to resolve this issue. George
Re: How do I extract individual values from pmt list and dict
(also, worth noting, that it's a bit annoying that you re-posted your question out of the
original thread. Now I have two George-asks-about-PMT threads with identical content.
Please don't re-post questions that you've asked not 24hrs ago; that's a bit of a waste of
everyone's time.)
On 03.08.22 15:00, Marcus Müller wrote:
Hi George,
first_element = pmt.vector_ref(P_list, 0)
and
spam_element = pmt.dict_ref(P_dict, pmt.to_pmt('spam'), pmt.PMT_NIL)
respectively.
Note that you must not put "payload" data into strings that you put into PMT.
`pmt.to_pmt(str)` generates a PMT symbol, and these are saved for evermore in a global table.
Best regards,
Marcus
On 03.08.22 13:19, George Edwards wrote:
Hello GNURadio Community,
Let's assume the following pmt definitions for a list and and dictionary in an
OOT block:
P_list = pmt.to_pmt([1, 2, 3.45, 'eggs'])
P_dict = pmt.to_pmt({'spam': 20, 'eggs': 40})
How do I explicitly extract the first element in P_list and the value for 'spam' from
P_dict?
Thank you!
George
smime.p7s
Description: S/MIME Cryptographic Signature
Re: Ubuntu 20.04 cannot find the Hackrf board?
You might want to try running hackrf_info with superuser privileges using sudo, i.e. "sudo hackrf_info". Many/most peripherals require this in Linux by default. Additionally, use of a VM may limit the sample rate you can achieve since there is some overhead passing through the USB connection. Consider installing Linux directly on your machine. > On Aug 3, 2022, at 6:12 AM, George Edwards wrote: > > > Hello GNURadio Community, > > I built a grc flowgraph in Gnuradio 3.9.5 on Ubuntu 20.04 inside Microsoft > VirtualBox. I have a HackRF One radio hardware. I installed the hackrf > drivers in Ubuntu with command: sudo apt-get install -y hackrf > and confirmed the installation. I connected the HackRF One board to my > computer and in the Terminal prompt entered the command hackrf_info and > received the response that it does not see the Hackrf board. > > And true to form when I ran the flowgraph, I get the following error message: > RuntimeError: no hackrf device matches > > Why is Ubuntu 20.04 running inside MS VirtualBox not seeing the HackRf board > with the HackRf drivers installed. And, how do I resolve this issue? > > Will appreciate any help to resolve this issue. > > George >
Re: Ubuntu 20.04 cannot find the Hackrf board?
On 2022-08-03 11:32, James Anderson wrote: You might want to try running hackrf_info with superuser privileges using sudo, i.e. "sudo hackrf_info". Many/most peripherals require this in Linux by default. If the udev rules were installed correctly for this device, then you don't need to be superuser to use it. Additionally, use of a VM may limit the sample rate you can achieve since there is some overhead passing through the USB connection. Consider installing Linux directly on your machine. On Aug 3, 2022, at 6:12 AM, George Edwards wrote: Hello GNURadio Community, I built a grc flowgraph in Gnuradio 3.9.5 on Ubuntu 20.04 inside Microsoft VirtualBox. I have a HackRF One radio hardware. I installed the hackrf drivers in Ubuntu with command: sudo apt-get install -y hackrf and confirmed the installation. I connected the HackRF One board to my computer and in the Terminal prompt entered the command hackrf_info and received the response that it does not see the Hackrf board. And true to form when I ran the flowgraph, I get the following error message: RuntimeError: no hackrf device matches Why is Ubuntu 20.04 running inside MS VirtualBox not seeing the HackRf board with the HackRf drivers installed. And, how do I resolve this issue? Will appreciate any help to resolve this issue. George
Re: How do I extract individual values from pmt list and dict
Thank very much Marcus!
George
On Wed, Aug 3, 2022, 7:05 AM Marcus Müller wrote:
> Hi George,
>
> first_element = pmt.vector_ref(P_list, 0)
>
> and
>
> spam_element = pmt.dict_ref(P_dict, pmt.to_pmt('spam'), pmt.PMT_NIL)
>
> respectively.
>
> Note that you must not put "payload" data into strings that you put into
> PMT.
> `pmt.to_pmt(str)` generates a PMT symbol, and these are saved for evermore
> in a global table.
>
> Best regards,
> Marcus
>
> On 03.08.22 13:19, George Edwards wrote:
> > Hello GNURadio Community,
> >
> > Let's assume the following pmt definitions for a list and and dictionary
> in an OOT block:
> > P_list = pmt.to_pmt([1, 2, 3.45, 'eggs'])
> > P_dict = pmt.to_pmt({'spam': 20, 'eggs': 40})
> >
> > How do I explicitly extract the first element in P_list and the value
> for 'spam' from P_dict?
> >
> > Thank you!
> >
> > George
>
>
Re: Ubuntu 20.04 cannot find the Hackrf board?
Hi Marcus, thanks for the response, very much appreciated! I have a Windows PC and I believe that in order to build OOT blocks, one needs a Linux environment. I installed VirtualBox so that I can install Ubuntu 20.04 to get a Linux environment to install Gnuradio 3.9 in. George On Wed, Aug 3, 2022, 8:26 AM Marcus Müller wrote: > Hi George, > > you'll have to do a bit more investigation on your end, I'm afraid. We > don't know how you > set up your VM, or how you're passing through the USB driver. Generally, > USB passthrough > comes at a high overhead, and sometimes that's prohibitively slow, as > well. Also, why do > VirtualBox (and that's not a Microsoft product, so I'm really confused by > what you're > referring to), if you can have WSL2? > > Best regards, > Marcus > > On 03.08.22 14:15, George Edwards wrote: > > Hello GNURadio Community, > > > > I built a grc flowgraph in Gnuradio 3.9.5 on Ubuntu 20.04 inside > Microsoft VirtualBox. I > > have a HackRF One radio hardware. I installed the hackrf drivers in > Ubuntu with command: > > sudo apt-get install -y hackrf > > and confirmed the installation. I connected the HackRF One board to my > computer and in the > > Terminal prompt entered the command hackrf_info and received > the response that it does not > > see the Hackrf board. > > > > And true to form when I ran the flowgraph, I get the following error > message: > > RuntimeError: no hackrf device matches > > > > Why is Ubuntu 20.04 running inside MS VirtualBox not seeing the HackRf > board with the > > HackRf drivers installed. And, how do I resolve this issue? > > > > Will appreciate any help to resolve this issue. > > > > George > > > >
Re: gr_modtool in conda failing
My only reason for using 3.8.2.0 was to match the version in buildroot exactly. But I don't think it's a big deal. I'll stick with the newer version. Thanks for all your help On Mon, Aug 1, 2022 at 3:37 PM Ryan Volz wrote: > On 8/1/22 2:50 PM, Jameson Collins wrote: > > So gnuradio=3.8.3.1 worked for me, thanks. I guess I should have tried > > that after you suggested updating. > > > > I sorta lost track of the rest of the conversation. Do you think it > > should be possible to use 3.8.2.0? > > Possible, yes. It's not GNU Radio 3.8.2.0 that's broken, it's the > existing conda packages for 3.8.2.0 that have a broken gr_modtool > template. One would need to apply the fix that I later applied for > 3.8.3.1+ and re-build the packages to get working 3.8.2.0 conda packages. > > As far as I know, though, there should be no reason to use 3.8.2.0 > specifically over 3.8.5 (latest). > > Cheers, > Ryan >
Re: Ubuntu 20.04 cannot find the Hackrf board?
Hello Gentlemen, I installed VirtualBox extension pack and made the USB connection in VirtualBox to the HackerRF board. However, in the Ubuntu Terminal when I execute the command hackrf_info the info that comes up is: hackrf_info version: unknown libhackrf version: unknown (0.5) Found HackRF Index: 0 Board ID Number: 2 (HackRF One) Firmware Version: 2014.08.1 (API:1.00) Part ID Number: 0xa000cb3c 0x006e4756 The above shows Ubuntu is having trouble reading the top two version information and as a result when I try to run the Gnuradio flowgraph, it gives a message that it fails to open HackRF. George On Wed, Aug 3, 2022 at 10:32 AM James Anderson wrote: > You might want to try running hackrf_info with superuser privileges using > sudo, i.e. "sudo hackrf_info". Many/most peripherals require this in Linux > by default. > > Additionally, use of a VM may limit the sample rate you can achieve since > there is some overhead passing through the USB connection. Consider > installing Linux directly on your machine. > > On Aug 3, 2022, at 6:12 AM, George Edwards wrote: > > > Hello GNURadio Community, > > I built a grc flowgraph in Gnuradio 3.9.5 on Ubuntu 20.04 inside Microsoft > VirtualBox. I have a HackRF One radio hardware. I installed the hackrf > drivers in Ubuntu with command: sudo apt-get install -y hackrf > and confirmed the installation. I connected the HackRF One board to my > computer and in the Terminal prompt entered the command hackrf_info and > received the response that it does not see the Hackrf board. > > And true to form when I ran the flowgraph, I get the following error > message: > RuntimeError: no hackrf device matches > > Why is Ubuntu 20.04 running inside MS VirtualBox not seeing the HackRf > board with the HackRf drivers installed. And, how do I resolve this issue? > > Will appreciate any help to resolve this issue. > > George > >
Re: Ubuntu 20.04 cannot find the Hackrf board?
Hi George - the hackrf runs under ubuntu. The latest version is release 2021.03.1 https://github.com/greatscottgadgets/hackrf/release https://github.com/greatscottgadgets/hackrf/releases/download/v2021.03.1/hackrf-2021.03.1.tar.xz The current firmware version on your hackrf is 2014. You could try apt update apt install hackrf libhackrf-dev which may give you the 2018 version for the hackrf utils and libhackrf-dev. But I don't know how the firmware gets updated using apt - I've never used apt to install the hackrf software. The 2014 firmware may play enough well with the 2018 software - I don't know. It may play well enough to indicate the hackrf works on ubuntu but Ideally you'd like the version of firmware to match the software. -- Cinaed On 8/3/22 18:28, George Edwards wrote: Hello Gentlemen, I installed VirtualBox extension pack and made the USB connection in VirtualBox to the HackerRF board. However, in the Ubuntu Terminal when I execute the command hackrf_info the info that comes up is: hackrf_info version: unknown libhackrf version: unknown (0.5) Found HackRF Index: 0 Board ID Number: 2 (HackRF One) Firmware Version: 2014.08.1 (API:1.00) Part ID Number: 0xa000cb3c 0x006e4756 The above shows Ubuntu is having trouble reading the top two version information and as a result when I try to run the Gnuradio flowgraph, it gives a message that it fails to open HackRF. George On Wed, Aug 3, 2022 at 10:32 AM James Anderson wrote: You might want to try running hackrf_info with superuser privileges using sudo, i.e. "sudo hackrf_info". Many/most peripherals require this in Linux by default. Additionally, use of a VM may limit the sample rate you can achieve since there is some overhead passing through the USB connection. Consider installing Linux directly on your machine. On Aug 3, 2022, at 6:12 AM, George Edwards wrote: Hello GNURadio Community, I built a grc flowgraph in Gnuradio 3.9.5 on Ubuntu 20.04 inside Microsoft VirtualBox. I have a HackRF One radio hardware. I installed the hackrf drivers in Ubuntu with command: sudo apt-get install -y hackrf and confirmed the installation. I connected the HackRF One board to my computer and in the Terminal prompt entered the command hackrf_info and received the response that it does not see the Hackrf board. And true to form when I ran the flowgraph, I get the following error message: RuntimeError: no hackrf device matches Why is Ubuntu 20.04 running inside MS VirtualBox not seeing the HackRf board with the HackRf drivers installed. And, how do I resolve this issue? Will appreciate any help to resolve this issue. George
