looks like a hardware issue, could be:
- improper power sequence (maybe BBB-red powers up too early... I dunno what is bbb red) - not enough power delivery/ or sudden power spike On Mon, Nov 14, 2016 at 7:30 PM, Guru raj.M <[email protected]> wrote: > > hi, > i am currently using BBB-Red board which as industrial grid.. > with Debian GNU/Linux 7.8 (wheezy) os and made to boot from SDcard and > image date is BeagleBoard.org Debian Image 2015-03-01. > > lsb_release -a > No LSB modules are available. > Distributor ID: Debian > Description: Debian GNU/Linux 7.8 (wheezy) > Release: 7.8 > Codename: wheezy > > i try to power up this bbb with my own carrier card with external power > supply, it is (carrier card with external power supply) absolutely working > with BBB-balck board and having same OS. if i connect this board to BBB-red > board and powered on but eth0 doesn't came up, but in BBB-black board its > working fine.. > i tried with dmesg and i found below mesg... > dmesg | grep eth0 > [ 5.623106] net eth0: initializing cpsw version 1.12 (0) > [ 5.628425] net eth0: phy found : id is : 0x7c0f1 > [ 5.633516] net eth0: phy 4a101000.mdio:03 not found on slave 1 > [ 5.665388] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready > > > so there is no ethernet connection up. > The carrier card with external power supply have 4 RS485 with serial > digital isolator Si8422.. > > plz can any one tell what was the issues... even i thought of loading > issues but its not.. > > -- > 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]. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/beagleboard/81ec0484-9ddd-4836-874a-bdcfa574768f%40googlegroups.com > <https://groups.google.com/d/msgid/beagleboard/81ec0484-9ddd-4836-874a-bdcfa574768f%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAMMUdp%2B-CvrqgrZXgmavq_VknMZv86XunFdWKr28RZwm62ALsQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
