Re: [Discuss-gnuradio] Head block in GRC
> [...] very basic configuration set up in GRC with a file source(text data) > set to repeat going into the head block going into a throttle to control > the sampling rate and going into a file sink. > > For the head block I have played around with the Number of Items and > Vector Size parameters. [...] Any idea on what could be causing this? I'm not sure about the internals of these file sources and sinks, but playing around with custom blocks I've found that the function 'message_from_string' does not work properly if the size is set to one byte (e.g. type = byte, vec_size = 1, when size = type*vec_size). No throughput is generated by this, as far as my experience goes. - Martin ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Head block in GRC
Hi, I am trying to use the head block in GRC to limit the amount of dat written to a file. Currently I have a very basic configuration set up in GRC with a file source(text data) set to repeat going into the head block going into a throttle to control the sampling rate and going into a file sink. For the head block I have played around with the Number of Items and Vector Size parameters. I have been able to get it to work with some combinations of numbers but they didn't seem to follow any logical pattern. For example if I set the head block input to bytes, Num Items to 50, and Vector Size to 1 I would have thought I would geta 50 byte output file but the file was blank (0 bytes). Any idea on what could be causing this? Thanks, Dave ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
