[Discuss-gnuradio] Eventstream source latency

2019-08-16 Thread Lundberg, Daniel via Discuss-gnuradio
I have a flowgraph with a simple FDMA implementation with two channels. One channel has a constant stream. The other channel has complex sample bursts generated in a custom python function, which I package as a PDU. I apply the frequency modulation within the python file to place it in the co

Re: [Discuss-gnuradio] Can't create Out of Tree Tagged Stream Blocks?

2019-07-22 Thread Lundberg, Daniel via Discuss-gnuradio
: Monday, July 22, 2019 1:52 PM To: Lundberg, Daniel ; Discuss GNURadio Subject: Re: [Discuss-gnuradio] Can't create Out of Tree Tagged Stream Blocks? Hi DL - 2 primary thoughts: 1) To "create" a tagged stream block in your OOT using gr_modtool (if it doesn't do that as you desi

[Discuss-gnuradio] Can't create Out of Tree Tagged Stream Blocks?

2019-07-22 Thread Lundberg, Daniel via Discuss-gnuradio
I am working within Gnuradio version 3.7.13.4. As far as I can tell, gr_modtool does not support tagged stream blocks for either python or C++. Trying to make a new tagged stream block in C++ will create QA code, but does not make files for the actual block. For python it will throw a hard er

[Discuss-gnuradio] Clarification on how timing/latency applies to a stream mux

2019-06-28 Thread Lundberg, Daniel
I have an application where I am multiplexing signals, and one of those signals requires time to poll a piece of equipment over a serial connection and package that information into what is sent. I have an OOT module that contains the process to make the serial connection, and then in the work

Re: [Discuss-gnuradio] multiplexing multiple file sources without losing synchronization to file start

2019-05-20 Thread Lundberg, Daniel
directly about the issue. -DL From: Lundberg, Daniel Sent: Friday, May 17, 2019 4:53 PM To: discuss-gnuradio@gnu.org Subject: multiplexing multiple file sources without losing synchronization to file start I am trying to multiplex a number of signal sources where alignment to the start of each s

[Discuss-gnuradio] multiplexing multiple file sources without losing synchronization to file start

2019-05-17 Thread Lundberg, Daniel
I am trying to multiplex a number of signal sources where alignment to the start of each signal source is important. These need to be a mix of static file sources with real-time diagnostic data interleaved, i.e., what I want to achieve is: Signal 1, Short chunk of diagnostic information Signal

[Discuss-gnuradio] periodic errors in assigning frequency with 2 B210's

2019-02-04 Thread Lundberg, Daniel
Hi all, I have a gnuradio program that is controlling 2 B210's. The basic structure is that the program sleeps for a period of time, then tells one of the two B210's to create a top block, transmit and receive, perform some math on the received streams, and save the result (a single number) to

[Discuss-gnuradio] Best path forward for transmitting canned waveforms from N310 / X310

2018-10-03 Thread Lundberg, Daniel
A bit of background: I have been using a B205i mini to transmit a variety of canned waveforms. These have ~5 MHz of BW, and I've been using binary files sampled at 6.25 MS/s. I use a modified version of the tx_samples_from_file example, using a host laptop via a USB 3.0 to Ethernet adaptor. T