not sure what the picture is saying... opening /dev/urandom should give you data. from a terminal, what happens if you issue: sh-4.4$ ls -l /dev/urandom crw-rw-rw- 1 root root 1, 9 Jul 30 2021 /dev/urandom getting 1024 bytes from it: sh-4.4$ dd if=/dev/urandom of=fred bs=1 count=1024 1024+0 records in 1024+0 records out 1024 bytes (1.0 kB, 1.0 KiB) copied, 0.00284394 s, 360 kB/s should result in something such like: sh-4.4$ ls -l fred -rw-r--r-- 1 barbo barbo 1024 May 16 14:22 fred
On Mon, May 16, 2022 at 2:24 PM user 1 <gnura...@onditech.com> wrote: > Hi Steven, > > Thank you for your suggestion, but /dev/urandom is an empty file ???? > See Screenshot_3 > > > jeff > > ------------------ > > > > Le 16/05/2022 à 16:41, Steven Barbo a écrit : > > Howdy Jeff. > > What happens if you use /dev/urandom as file source? > > > > On Mon, May 16, 2022 at 9:09 AM user 1 <gnura...@onditech.com > > <mailto:gnura...@onditech.com>> wrote: > > > > Hello Cinaed, > > > > Unfortunately scheme doesn't work, even with a bin file. > > > > > > > > jeff > > > > > > ------------------------------ > > > > Le 16/05/2022 à 12:06, Cinaed Simson a écrit : > > > Hi Jeff - the error indicates the file source has the wrong data > > type, > > > i.e. it may not be binary data. > > > > > > If the input file contains hex numbers, then you need to convert > > each > > > hex number to a binary number and concatenate them. > > > > > > -- CInaed > > > > > > > > > For instance, 40 hex is equivalent to 01000000 binary. > > > > > > For instance, > > > > > > On 5/16/22 00:46, user 1 wrote: > > >> Hi, > > >> > > >> Somebody could tell me why this simple scheme doesn't work (see > the > > >> screenshots)? > > >> > > >> File Source ---> Throttle ---> File Sink > > >> > > >> > > >> I work under Ubuntu 20.04.4 LTS and GnuRadio 3.9.6 > > >> > > >> > > >> This scheme worked fine in the past with previous releases of > > GnuRadio. > > >> > > >> > > >> Thank you for your help. > > >> > > >> > > >> > > >> Jeff > > > > > > > > > > > -- > > If something is requisite, how can it possibly be, prerequisite? > > > > vanitas vanitatum omnia vanitas > > later, steve > > http://umn.edu/~barbo <http://umn.edu/~barbo> > -- If something is requisite, how can it possibly be, prerequisite? vanitas vanitatum omnia vanitas later, steve http://umn.edu/~barbo
