From: David A. B. <dbu...@jc...> - 2009-10-28 23:41:22
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Eli - Going over to a 52 MHz clock will make a big difference, because it allows you to remove the polyphase resampler. We *did* run OpenBTS on 1.6 GHz Atom mini-ITX's at Burning Man, but it was with the 64 MHz clock. It was a tight fit, but it worked. As for the "IND CLOCK" messages, they are normal in more recent releases. -- David On Oct 28, 2009, at 7:34 PM, Eli Gurvitz wrote: > Hi, > > I am trying to run OpenBTS on an Atom Z530 (1.6 GHz), with Ubuntu > and kernel version 2.6.24 and it is working very poorly. I'm > comparing it to my other platform - an old Pentium 3, 800 MHz on > which it works much better - I mean that on the P3 several phones > connect with both local and foreign SIM cards. > > On my Atom, the Transceiver runs at 63% CPU. Only one handset (a > Nokia 7650) connects and only when I put in a local SIM and > broadcast on the real frequency of the local provider. I am using > RTPRIO as Alexander suggested but it doesn't seem to help. > > I'm also getting the CLOCK Indication message from the Transceiver > every second. I understand that this means that OpenBTS fails to > transmit on time. > > Is there a way to improve the performance on the Atom? Will an > external clock help in this situation? > > Thanks, > Eli > > > > > ---------------------------------------------------------------------- > -------- > Come build with us! The BlackBerry(R) Developer Conference in SF, CA > is the only developer event you need to attend this year. Jumpstart > your > developing skills, take BlackBerry mobile applications to market > and stay > ahead of the curve. Join us from November 9 - 12, 2009. Register now! > http://p.sf.net/sfu/ > devconference_______________________________________________ > Openbts-discuss mailing list > Ope...@li... > https://lists.sourceforge.net/lists/listinfo/openbts-discuss David A. Burgess Kestrel Signal Processing, Inc. |