Yes it does sound vague. I would hook a scope to the power and see what it
does in the reset scenario. What is your current capacity of your power
source?
If the power pin is held down too long, it will result in a power cycle and
not a shutdown.
Gerald
On Thu, Mar 13, 2014 at 9:57 AM, <meerutmicrotechni...@gmail.com> wrote:
> Hi,
>
> I have noticed that the beaglebone black starts up after a shutdown.
>
> I have a C++ program running in the bbb, the bbb is backed by an external
> +5V battery pack. When the C++ program issues the following command to
> start the shutdown procedure of the bbb.
>
> system("shutdown -h now");
>>
>> exit(0);
>>
>>
> This does shutdown the bbb completely sometimes, most times the bbb starts
> up again, the power led turns off but then after a second or two lights up
> again and then bbb starts up all over again (the output voltage from the
> power bank does not switch OFF, it remains ON for some time).
>
> In my previous bbb systems I have not faced this problem.
>
> It is my belief that the output voltage from the power bank has a sudden
> dip, this causes the bbb to detect a new power cycle.
>
> I am not sure though if I am correct...
>
> Could anyone enlighten me on this problem ???
>
> I am sorry if the above problem sounds vague...
>
> thanks
> a
>
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