Re: [Discuss-gnuradio] carrier signal dropping

[Charles Irick]

FYI, the new git repo doesn't seem to have usrp2_siggen.py under
gr-utils. usrp_siggen.py seems to work in the same way with minor
differences but the naming makes it seem like it's for the original
usrp. I probably wouldn't have thought it was compatible if I was just
poking around for the first time.

Charles

On Wed, Jan 6, 2010 at 4:42 PM, Eric Blossom <address@hidden> wrote:
> On Wed, Jan 06, 2010 at 04:32:21PM -0500, Charles Irick wrote:
>> My apologies,
>> Distro: Ubuntu 9.04
>> Kernel: 2.6.28-17-generic
>> GNU Radio version: I'm pretty sure it's 3.2.2, I'm using the dev trunk
>> but svn doesn't seem to allow me to update right now.
>>
>> It is indeed complaining about not being able to enable real-time
>> scheduling. Since you asked I assumed this was the issue and looked it
>> up. It turns out even though I set up the USRP2 to run as non-root by
>> changing the permissions of usrp2_socket_opener, this was the issue.
>> It seems to work fine as root. I'm guess the tx fifo was emptying
>> without scheduling? Is there anywhere that I can read up on this
>> real-time scheduling because I will definitely need to solve some
>> similar issues in the future.
>>
>>
>
>
> Edit /etc/security/limits.conf and add this line:
>
> @usrp  - rtprio 50
>
> make sure that your user is a member of group usrp, then logout and back in.
>
> Eric
>