Meant Beagleboard XM, according to the TI data sheet, the commercial grade CPU is only guaranteed to work to 0C.
http://www.ti.com/lit/ds/symlink/am3703.pdf Same is likely true for all the other components on the board. I used to work many years ago in qualifying hardware to MILSPEC and even getting military grade parts to work at the bottom of their temperature range after a cold soak can be a challenge. On Wednesday, October 9, 2013 12:03:57 PM UTC-7, George B wrote: > > 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 [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
