I do not believe the components are rated to even work at -20C. You would need industrial or military temperature range components. The parts on the BBB are commercial/consumer grade and are rated to work only down to about 0C. Finding commercial grade parts that will function at -20C will be hard to do. You might have to go through an entire bin of chips to find three or four that will work at that temperature. Industrial temperature range components will generally work down to -30 or -40 and military grade generally goes down to -65C
On Tuesday, October 8, 2013 12:41:28 AM UTC-7, Kets wrote: > > Hello, > > We are facing an issue with USB getting powered ON upon boot on beagle > board XM when using Ubuntu image. > > > > Here are the details: > > > > Issue faced: USB and Ethernet does not turn ON at board power ON in Ubuntu > image. This issue is seen with Ubuntu image only and not with Android > image. > > Environment: Beagle board is kept in cool location (-20 deg cel.) for > about an hour and then powered ON in this environment. > > Image used: > > 1. Ubuntu: * > https://rcn-ee.net/deb/rootfs/raring/ubuntu-13.04-console-armhf-2013-09-26.tar.xz > *<https://rcn-ee.net/deb/rootfs/raring/ubuntu-13.04-console-armhf-2013-09-26.tar.xz> > (This > is 3.11.1 kernel based. Other kernel version tested and fails with ubuntu > images: 3.4.7, 3.7.10) > 2. Android: > **<http://rowboat.googlecode.com/files/beagleboard-xm.tar.gz> > *http://rowboat.googlecode.com/files/beagleboard-xm.tar.gz<http://rowboat.googlecode.com/files/beagleboard-xm.tar.gz%C2%A0(this+seems+to+be+)><http://rowboat.googlecode.com/files/beagleboard-xm.tar.gz%C2%A0(this+seems+to+be+)> > *<http://rowboat.googlecode.com/files/beagleboard-xm.tar.gz%C2%A0(this+seems+to+be+)> > > > Any pointers on this will be appreciated. > > > > Thanks, > > Ketan > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
