Hi Louis, Did you manage to find a solution to this? We are trying to solve a similar issue with the Beagleboard x15, to boot it up on receiving 12V power from the DC jack, without the need for pressing the power button.
Thanks! Akshay On Thursday, 9 May 2019 06:43:39 UTC-7, Louis Whitcomb wrote: > > Dear Graham, > > Thanks for your reply! Yes, I am aware of power-on reset ICs, as well > as simple power-on reset circuits with discrete components. I was hoping > that the designers of the BeagleBone Blue, or experts on the OSD3358, might > be aware solution that was already designed into the system (cut a trace, > short an input, burn a fuse, etc). > > Thanks and Best Regards, > > -Louis > > On Monday, May 6, 2019 at 9:03:03 PM UTC-4, [email protected] wrote: >> >> Louis: >> >> There are multiple families of a type of IC known as a Power-On reset IC, >> or supervisory reset IC >> >> They wait for a Voltage to appear above a threshold, and remain stable >> for some period, then send a reset output for a predetermined time. >> >> If you go to the On Semi site, and search on "Power On Reset", you will >> get hits about ten different ICs. >> Check out the MAX809 as an example >> >> TI has a selector page, see >> http://www.ti.com/power-management/supervisor-reset-ic/overview.html >> >> If you go to the On Semi site, and search on "Power On Reset", you will >> get hits about ten different ICs. >> Check out the MAX809 as an example >> >> They are generally cheap and small, and many require no support or glue >> parts other than a bypass cap, if their default Voltages and times work for >> you. >> >> --- Graham, >> >> >>> -- 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/232c142a-4c9f-4378-88a7-b046ddf2e433%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
