[Discuss-gnuradio] Issue Receiving Messages Using Gr-IEEE-802-15-4

2019-08-15 Thread Tellrell White
Hello I'm using the GR-IEEE 802.15.4 OQPSK Transceiver and I'm trying to receive a packet from a XBee ZigBee module and then import that packet to wireshark. However, the file sink is always empty after running the flowgraph. I have the rime stack, socket pdu, message strobe, and packet pad all

Re: [Discuss-gnuradio] Problem installing Gnuradio3.8

2019-08-15 Thread Michael Dickens
Hi Al - I can't speak to PyBOMBS specifically, but the error message shows that GMP or MPIR isn't working correctly: "/usr/include/gmpxx.h" should "#include" the file "/usr/include/gmp.h", which should contain the function "mpf_cmp_z" ... just checked my system & this is indeed the case. Maybe

Re: [Discuss-gnuradio] Gnuradio Runtime buffers and latency

2019-08-15 Thread Michael Dickens
Hi Wheberth - In a similar block I've created in the past, I include a parameter, let's call it "stuffing_size", that is the number of items to stuff when stuffing occurs. If this value is small, then there is "small" latency between when the PDU comes in and its data is output ... but, the

Re: [Discuss-gnuradio] Computation of RFNoC Blocks in GRC

2019-08-15 Thread Felix Greiwe
Hi Derek, thank you for your helpful answer! In the link you sent, they mention that Q16 Format is used as otw Format. Is that the same as the signed Q1.15 Format? I think it has to be, because otherwise only positive numbers could be mapped. I now managed to add numbers from my registers to my

Re: [Discuss-gnuradio] Issue Receiving Messages Using Gr-IEEE-802-15-4

2019-08-15 Thread Bastian Bloessl
Hi, there are quite a lot of "XBee" boards. Some of them support multiple PHYs etc. So please make sure that the device is actually sending standard compliant IEEE 802.15.4 frames on the channel that you are tuned to. Use gr-fosphor to make sure that the device is actually sending on the

[Discuss-gnuradio] Problem installing Gnuradio3.8

2019-08-15 Thread LiverPudd
Hi All I cannot get gnuradio 3.8 to install. I have installed a clean copy of Ubuntu Mate 18.04 and pybombs on my machine and installed all the pre-requisites required for gnuradio. What I have done thus far is; 1) Modify gnuradio-default.lwr to point to gnuradio38(.lwr) 2) Modify

Re: [Discuss-gnuradio] Gnuradio Runtime buffers and latency

2019-08-15 Thread Wheberth Damascena Dias
Thank you for your insight Michael. My block must always produce a fixed size chunk of data, so it is not directly applicable, but I could use a similar parameter to decide if I would produce stuffing in the current call to work or not. Then I could query the status of the output buffer to do so.

[Discuss-gnuradio] GNU Radio Project Call Today!

2019-08-15 Thread Martin Braun
Hi all, we have the monthly project call for GNU Radio on today, at the usual time (10 AM Pacific, 19:00 EU, 1 PM Eastern, other timezones please do your own math). Please join us on IRC or Slack where we'll post the link to the call shortly before it starts. -- M

Re: [Discuss-gnuradio] 802.11a capture with HackRF - Why am I not receiving signals anymore?

2019-08-15 Thread Eamon Heaney
Pic of the output from the QT GUI Frequency sink is shown below. I didn't see anything significantly different from this, even when I put the radio right up next to my home router. I've been told that it would be a good idea to set a DC offset for my source, but I'm unsure how to calculate that,

[Discuss-gnuradio] Trying to build gr-fcdproplus for GR 3.8

2019-08-15 Thread Barry Duggan
Hi, I'm trying to build gr-fcdproplus for GR 3.8 since 'libusb-1.0' was missing, I did: "sudo apt-get install libusb-1.0" to load hidapi, I did 'sudo pip3 install hidapi' the cmake summary is: -- Build Summary = -- Building gr-fcdproplus : .. for