We are working on one if we can collect enough information to confirm the issue. it appears to be a power supply issue that creates a condition that the TPS65217C does not like. If you use a good power supply, the issue is not there.
Gerald On Fri, Nov 14, 2014 at 8:31 AM, Bremenpl <[email protected]> wrote: > Is there a workaround for this? I thought that pre charged capacitors > could help but in my application power to the BeagleBone Black is aplied in > the same time as to the rest of the circuit. > > W dniu 2014-11-14 o 15:19, Gerald Coley pisze: > > The power management IC, TPS65217C. > > Gerald > > > On Fri, Nov 14, 2014 at 8:15 AM, Bremenpl <[email protected]> wrote: > >> What is the exact circuit that requires a fast ramp? >> >> W dniu 2014-11-14 o 14:48, evilwulfie pisze: >> >> As Gerald has said before, check the ramp up of the power supply. >> Some of the lab supplys have slow ramp ups. >> Yes they are very stable and VERY good regulation but >> the BBB design requires a fast ramp up supply. >> >> >> >> On 11/14/2014 3:03 AM, bremenpl wrote: >> >> Hello there, >> I have a very strange problem with powering up BeagleBone Black (rev >> C).... When i try to power it up from some cheap AC adapter it works fine, >> but when I connect to to my labolatory power supply the power LED on board >> is lid for a second and then doesnt power up the MCU and turns off intead. >> I have connected both supplys to osciloscope and they are both stable, the >> laboratory one even more. Why is the power controller on the BeagleBone >> Black refusing to power up the MCU when powered from lab supply? I have no >> idea what is this about. I would aprichiate any help. >> -- >> 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/d/optout. >> >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to a topic in the >> Google Groups "BeagleBoard" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/beagleboard/xRPC_39ju9Y/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> >> -- >> Bremenpl >> >> -- >> 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/d/optout. >> > > > > -- > Gerald > > [email protected] > http://beagleboard.org/ > http://circuitco.com/support/ > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to a topic in the > Google Groups "BeagleBoard" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/beagleboard/xRPC_39ju9Y/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/d/optout. > > > -- > Bremenpl > > -- > 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/d/optout. > -- Gerald [email protected] http://beagleboard.org/ http://circuitco.com/support/ -- 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/d/optout.
