Date: Wed, 21 Jan 2015 09:57:13 -0800 From: Reza Nikoopour <rnikoopour@gmail.com> To: freebsd-embedded@freebsd.org Subject: RBPi Doesn't Boot With GPS GPIO Board Attached Message-ID: <CAKesZq3ZB8j-MmNbCUoB2irdVyztuEPaVy-X95WqB9WQd3uZTg@mail.gmail.com>
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Hello, I'm currently building an NTP server using the following set up: Raspberry Pi B+ < http://www.amazon.com/gp/product/B00LPESRUK/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 > Raspberry PI GPS Add-on < http://imall.iteadstudio.com/raspberry-pi-gps-add-on.html > FreeBSD 10.1 built with CrochetBSD I was able to build an img with Crochet and get the Pi to boot into a shell. However, whenever I booting the Pi with the GPS board attached it will not boot. When I plug in the GPS Add-on into the GPIO connector, my Pi fails to boot before starting the kernel. It boots to the point where it says "Press enter to prevent auto boot" and then the letter 'L' shows up and starts erasing text from the screen. I was initially using a 1.5A power supply. It was suggested to me to try using a stronger power supply so I tried a 2.1A power supply, but that didn't work either. Using the 2.1A power supply resulted in the same boot problem described above. Next I tried using Raspbian to boot the Pi, but a similar problem occurred. The Pi boots without the GPS board attached. When the GPS board is attached, it boots kernel and when the screen to start Raspbian Software Configuration then the following message prints to the screen indefinitely: SysRq : HELP : loglevel(0-9) reboot(b) crash(c) terminate-all-tasks(e) memory-full-oom-kill(f) kill-all-tasks(i) thaw-filesystem(j) sak(k) show-memory-usage(m) nice-all-RT-tasks(n) poweroff(o) show-registers(p) show-all-timers(q) unraw(r) sync(s) show-task-states(t) unmount(u) show-blocked-test(w) Could I get some guidance with fixing this problem? Thanks! Reza
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