Re: [Discuss-gnuradio] Unexpected wifi_loopback.grc output
Thank you! I appreciate it. From: Bastian Bloessl Sent: Monday, April 25, 2016 10:56 PM To: Gupta, Arjan; discuss-gnuradio@gnu.org Subject: Re: [Discuss-gnuradio] Unexpected wifi_loopback.grc output Hi, On 04/26/2016 03:44 AM, Gupta, Arjan wrote: > Here is the output the output for the flow graph: > > http://pastebin.com/JrfKwEB7 Looks fine. > > > When I generate the flow graph for wifi_loopback.grc, it gives me the > output: > > - > > Generating: '/home/student/bastibl/gr-ieee802-11/examples/wifi_loopback.py' > >>> Warning: This flow graph may not have flow control: no audio or RF > hardware blocks found. Add a Misc->Throttle block to your flow graph to > avoid CPU congestion. > > - > > > Is it supposed to be this way or am I doing something wrong? Any help > would be really appreciated. > That's OK. It just tells you that if you had only streams in your flow graph and no clock that throttles it down then the flow graph would run at maximum speed occupying all CPU cores. In the loopback example there is, however, a message strobe that inputs frames only from time to time and, therefore, takes care not to burn your CPU. Best, Bastian ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Unexpected wifi_loopback.grc output
Hi, On 04/26/2016 03:44 AM, Gupta, Arjan wrote: Here is the output the output for the flow graph: http://pastebin.com/JrfKwEB7 Looks fine. When I generate the flow graph for wifi_loopback.grc, it gives me the output: - Generating: '/home/student/bastibl/gr-ieee802-11/examples/wifi_loopback.py' >>> Warning: This flow graph may not have flow control: no audio or RF hardware blocks found. Add a Misc->Throttle block to your flow graph to avoid CPU congestion. - Is it supposed to be this way or am I doing something wrong? Any help would be really appreciated. That's OK. It just tells you that if you had only streams in your flow graph and no clock that throttles it down then the flow graph would run at maximum speed occupying all CPU cores. In the loopback example there is, however, a message strobe that inputs frames only from time to time and, therefore, takes care not to burn your CPU. Best, Bastian ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Unexpected wifi_loopback.grc output
Dear list, I am trying to set up a transceiver in GNU Radio. I have downloaded and installed Bastian Bloessl's repos by following his instructions on https://github.com/bastibl/gr-ieee802-11. Here are my system details: * OS: Ubuntu 14.04.1 * GNU Radio version: 3.7.9.2 Since I just installed this, I am just trying to get wifi_loopback.grc to execute properly, but I have strange output. I have tried to fiddle around with the snr, pdu length, pdu interval, but my output does not have the decoded "Hello World" packets that it should. Here is the output the output for the flow graph: http://pastebin.com/JrfKwEB7 When I generate the flow graph for wifi_loopback.grc, it gives me the output: - Generating: '/home/student/bastibl/gr-ieee802-11/examples/wifi_loopback.py' >>> Warning: This flow graph may not have flow control: no audio or RF hardware >>> blocks found. Add a Misc->Throttle block to your flow graph to avoid CPU >>> congestion. - Is it supposed to be this way or am I doing something wrong? Any help would be really appreciated. Best regards, Arjan Gupta ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
