From: Keane, B. (STRX) <ben...@ka...> - 2012-10-29 23:51:15
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I think this sometimes happens when there is noise on the UART line causing the boot loader to think it should load via serial. Try adding a 10k pull-up between Rx3 and 1v8. > -----Original Message----- > From: AndyHall [mailto:and...@l-...] > Sent: Monday, 29 October 2012 10:22 PM > To: gum...@li... > Subject: [Gumstix-users] Gumstix interrupting auto-boot when not > connected via serial connection > > I am using multiple Gumstix Overo EathSTROMs with a Janus board and a > Tobi-Duo on each. I have put a “prebuilt” image onto the SD card following > the instructions on the Gumstix website. > > When connected with a USB cable to the Janus board, I can talk to the > Gumstix all nice and happily; ping them over the network I’ve set up etc. > However, when I boot the Gumstixs without this serial connection, the > boards often do not boot up fully; I cannot ping them and they appear to be > unresponsive. > > If I then connect a serial connection to the Gumstix and try any terminal > commands, it acts as though I have interrupted the boot sequence; giving me > the options to erase the nand etc. > > I have erased the environment variables using the “nand erase 240000 > 20000” > command, and I have reset the boards from the command line and so on. > Stopping the autoboot only seems to happen when I’m not plugged into the > serial connection, so I can’t see any error messages etc. > > Any ideas? > > > > -- > View this message in context: http://gumstix.8.n6.nabble.com/Gumstix- > interrupting-auto-boot-when-not-connected-via-serial-connection- > tp4965836.html > Sent from the Gumstix mailing list archive at Nabble.com. > > ------------------------------------------------------------------------------ > The Windows 8 Center - In partnership with Sourceforge Your idea - your app > - 30 days. > Get started! > http://windows8center.sourceforge.net/ > what-html-developers-need-to-know-about-coding-windows-8-metro- > style-apps/ > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > __________________________________________________________ > ____________ > CAUTION: This message was sent via the Public Internet and its authenticity > cannot be guaranteed. PROPRIETARY: This e-mail contains proprietary information some or all of which may be legally privileged. It is intended for the recipient only. If an addressing or transmission error has misdirected this e-mail, please notify the authority by replying to this e-mail. If you are not the intended recipient you must not use, disclose, distribute, copy, print, or rely on this e-mail. |