<https://lh3.googleusercontent.com/-JEmDAWK-Rgc/WJzfPlDrkQI/AAAAAAAAKHI/_iT3bhBTQ4ctMziopdZwB6440ozQnCY-QCLcB/s1600/BBGW_power.jpg>
<https://lh3.googleusercontent.com/-JEmDAWK-Rgc/WJzfPlDrkQI/AAAAAAAAKHI/_iT3bhBTQ4ctMziopdZwB6440ozQnCY-QCLcB/s1600/BBGW_power.jpg> Hello Gerald. DC-DC converter is stable at five volts in almost time, but there are some events that looks like this picture. (voltage is under 4 volts.) El jueves, 9 de febrero de 2017, 17:32:15 (UTC-3), Gerald escribió: > > Is it exactly 5V? How much ripple is there on the 5V supply? What is the > power source for the DC DC converter? > > Gerald > > > On Thu, Feb 9, 2017 at 2:21 PM, felipe robles <electr...@gmail.com > <javascript:>> wrote: > >> Hello Wulf >> >> My beaglebone is powering in P9_5 and P9_6 pins from DC DC converter that >> supplies 5V from battery (charger controller). >> >> >> El jueves, 9 de febrero de 2017, 17:09:59 (UTC-3), Wulf Man escribió: >> >>> looks like a power glitch. how are you powering this? >>> >>> On 2/9/2017 12:08 PM, felipe robles wrote: >>> >>> Hello folks >>> >>> My name is Felipe and I looking for solution or some hint to my newest >>> problem. >>> I got a BBGW running BeagleBoard.org Debian Image 2016-11-06. My project >>> is get many measurements from differents sensors like conductivity, >>> dissolved oxygen, and others. and put this values into web server using >>> mobile broadband. The problem is that system is shuting down. I looking in >>> log files I don't get many information. the most relevant information that >>> i got is in /var/log/auth.log and says. >>> >>> Feb 9 11:06:01 beaglebone CRON[1050]: pam_unix(cron:session): session >>> opened for user root by (uid=0) >>> Feb 9 11:06:03 beaglebone CRON[1050]: pam_unix(cron:session): session >>> closed for user root >>> Feb 9 11:07:33 beaglebone login[574]: pam_unix(login:auth): check pass; >>> user unknown >>> Feb 9 11:07:33 beaglebone login[574]: pam_unix(login:auth): >>> authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/ttyGS0 ruser >>> = rhost= >>> Feb 9 11:07:36 beaglebone login[574]: FAILED LOGIN (1) on '/dev/ttyGS0' >>> FOR 'UNKNOWN', Authentication failure >>> Feb 9 11:08:01 beaglebone sshd[1107]: Accepted password for debian from >>> 192.168.7.1 port 37207 ssh2 >>> Feb 9 11:09:01 beaglebone CRON[1153]: pam_unix(cron:session): session >>> opened for user root by (uid=0) >>> Feb 9 11:09:03 beaglebone CRON[1153]: pam_unix(cron:session): session >>> closed for user root >>> Feb 9 11:09:23 beaglebone systemd-logind[357]: Power key pressed. >>> Feb 9 11:09:23 beaglebone systemd-logind[357]: Powering Off... >>> Feb 9 11:09:23 beaglebone systemd-logind[357]: System is powering down. >>> >>> >>> >>> my system have a beaglebone green wireless, 1 PCB that feed beaglebone >>> from charger controller that connect to battery and power supply. >>> >>> Thanks for your attention >>> Regards >>> Felipe >>> -- >>> 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 beagleboard...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/beagleboard/ccec63ab-0ada-4b22-9a28-630c6e480a2c%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/beagleboard/ccec63ab-0ada-4b22-9a28-630c6e480a2c%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 beagleboard...@googlegroups.com <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/beagleboard/551508dd-f5d2-4c8a-a6ba-8b056a3ae8c8%40googlegroups.com >> >> <https://groups.google.com/d/msgid/beagleboard/551508dd-f5d2-4c8a-a6ba-8b056a3ae8c8%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > Gerald > > ger...@beagleboard.org <javascript:> > http://beagleboard.org/ > gco...@emprodesign.com <javascript:> > > -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/5b6a6a23-295c-41b0-9ba6-dad139f7712d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
