I can accept that. This woul be only for non battery operation. Gerald
On Monday, November 17, 2014, Bremenpl <[email protected]> wrote: > And also an important thing- I cannot turn on BeagleBone Black on battery > only now. > > W dniu 2014-11-17 o 11:48, Gerald Coley pisze: > > Replace the resistor with a wire and just short it to ground. > > Gerald > > > On Monday, November 17, 2014, Bremenpl <[email protected] > <javascript:_e(%7B%7D,'cvml','[email protected]');>> wrote: > >> I have tested the board again and heres what I have come to: >> - Using meanwell 5V ac adapter works when the 10k resistor is NOT >> soldered to battery header. If theres resistor soldered, but there is no >> battery attached it stops working and the power led blinks all the time. It >> really seems that the power controller is trying to switch to the battery >> that is not there. After placing the battery everything works correct. I >> only home it wont get discharged to fast when the board is off. >> >> W dniu 2014-11-14 o 16:58, Gerald Coley pisze: >> >> And mine. >> >> Gerald >> >> On Fri, Nov 14, 2014 at 9:50 AM, Bremenpl <[email protected]> wrote: >> >>> Ill get it tested, thank you. If this worked it would solve my >>> problem. >>> >>> Dnia 14 listopada 2014 16:41:30 Gerald Coley <[email protected]> >>> napisał(a): >>> >>>> The output voltage level is different. When the DC is contented it is >>>> supposed to go to the DC input and go into charge mode for the battery. >>>> Measure the output voltage of the PMIC. If it is 5V, then it is DC in. If >>>> it is 3.7V +/- then it is running on the battery. >>>> >>>> Gerald >>>> >>>> >>>> On Fri, Nov 14, 2014 at 9:37 AM, Bremenpl <[email protected]> wrote: >>>> >>>>> How can I know either it switched without taking the battery out? >>>>> >>>>> Dnia 14 listopada 2014 16:35:42 Gerald Coley <[email protected]> >>>>> napisał(a): >>>>> >>>>>> Another test here would be to connect the battery and see if after it >>>>>> switches to the battery if it switches back to the DC input. >>>>>> >>>>>> Gerald >>>>>> >>>>>> >>>>>> On Fri, Nov 14, 2014 at 9:31 AM, Bremenpl <[email protected]> wrote: >>>>>> >>>>>>> I understand, thank you for the info. I will make more attempts >>>>>>> at monday with another bbb board. For now I have a 10k resistor on the >>>>>>> TS >>>>>>> pin because I intend to use the battery to. If the voltage is measured >>>>>>> on >>>>>>> the resistor ill swap it to lower value one. I hope ill get it working >>>>>>> using meanwell power supply. >>>>>>> >>>>>>> Dnia 14 listopada 2014 16:16:30 Gerald Coley <[email protected]> >>>>>>> napisał(a): >>>>>>> >>>>>>>> Not likely. As I said we need more boards that fail and the power >>>>>>>> supply that is used with them. What I have seen is that it tries to >>>>>>>> switch >>>>>>>> to the battery, that is not there, for whatever reason. Theory is it >>>>>>>> sees a >>>>>>>> voltage drop due to the inrush limit on certain power supplies. I have >>>>>>>> fixed this on a few boards by connecting the TS signal hard to ground >>>>>>>> using >>>>>>>> the battery pins on the board. >>>>>>>> >>>>>>>> What I see when the board "does not power up" is the PMIC cycling >>>>>>>> on and off. You can look at the 5V output rail of the PMIC for this >>>>>>>> condition. >>>>>>>> >>>>>>>> Gerald >>>>>>>> >>>>>>>> >>>>>>>> On Fri, Nov 14, 2014 at 9:03 AM, Bremenpl <[email protected]> >>>>>>>> wrote: >>>>>>>> >>>>>>>>> I dont agree here, and this is the weird part. A cheap 5V wall >>>>>>>>> plug adapter works great and a certified meanwell supply does not. >>>>>>>>> Can it >>>>>>>>> be a case related to linear/ switching power supply? >>>>>>>>> >>>>>>>>> Dnia 14 listopada 2014 16:01:26 Gerald Coley < >>>>>>>>> [email protected]> napisał(a): >>>>>>>>> >>>>>>>>>> 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 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. >>>>>>>>>> >>>>>>>>> -- >>>>>>>>> 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. >>>>>>>> >>>>>>> -- >>>>>>> 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. >>>>>> >>>>> -- >>>>> 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. >>>> >>> -- >>> 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] > <javascript:_e(%7B%7D,'cvml','[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] > <javascript:_e(%7B%7D,'cvml','beagleboard%[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] > <javascript:_e(%7B%7D,'cvml','beagleboard%[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.
