> > *There are a lot of cheap power supplies out there that do not like any > drops on the mains, not very well filtered or robust. These can play havoc > on the HW.* > > *The BBB is a low cost board, with people trying to make it cheaper all > the time. To make it cheap something had to go. What you are talking about > here, is one of the things that went. An Atmel Tiny would be perfect as a > power monitor. It can shut it down and wake it up once the power comes > back. Even if it goes down for a moment, you can play it safe and shut it > down and wait a while. Your call* > > *All you have to do is add it to the board.* > > > *Gerald* > Yeap, exactly our thoughts here. The Micro used is really inconsequential. So long as it does everything *you* want it to do. I do not know Atmel parts well at all, but I do know several MSP430's. ST Micro MCU's would probably work too, as well as NXP's LPC800.
I picked the MSP430G2553, again, because I know the MCU better than most others. It also has hardware on chip ADC which I wanted to monitor input power. No other micro that I've looked at in the same price range had everything I wanted. @other nay sayers. Also as I stated before the MSP430G2* series has very robust PoR / BoR internal circuitry. It may lose power, but you're never( very unlikely ) going to stop it coming back up again exactly as planned. Unless power is removed gain . . . this is not some embedded linux system that can have its disk corrupted. This is a very robust, bare metal MCU that is meant to be used in conditions like these. On Mon, May 16, 2016 at 1:01 PM, lachlan <[email protected]> wrote: > > This what you need is this, A small micro (stm8 is cheap and do just fine) > .. which talks to the BBB over the serial port, so you can send/receive > commands/status..(pick your test) load info.. etc.. > this small micro is always power cyclical s once every 2 mints lets > say.. you can never prevent the small micro from being power cycled. > It save's what is was doing.. and wake's up on the next power up.. check > to see what test it was running.. lets say CPU load on the BBB, if > outside of allowed.. time.. load.. etc... > your reset's the BBB, or power cycle, you can also check for correct > power up of the BBB, and switch it too a diff-ant boot source etc.. > so.. if the small micro git hit my a cosmic ray.. for example if will > always power cycle.. of and on.. clear the error.. and recover. > you can also setup long path check's.. so a token is send to the BBB which > has to come back in some time frame etc.. if out side the test range... > your BBB task is frozen and needs a reset.. etc.. > Pick you test... > > Lachlan. > > > -- > 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/27b49949-a0f8-447c-a52e-9459da0d0bfe%40googlegroups.com > <https://groups.google.com/d/msgid/beagleboard/27b49949-a0f8-447c-a52e-9459da0d0bfe%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/CALHSORp72XudPND5zDgCtw53kW4Tac70FJa%3DBz9SjYDGpTRN6A%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
