From owner-freebsd-embedded@FreeBSD.ORG Wed Jan 21 19:16:28 2015 Return-Path: Delivered-To: freebsd-embedded@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id C89172DD for ; Wed, 21 Jan 2015 19:16:28 +0000 (UTC) Received: from mail-ig0-x234.google.com (mail-ig0-x234.google.com [IPv6:2607:f8b0:4001:c05::234]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 8F216F4B for ; Wed, 21 Jan 2015 19:16:28 +0000 (UTC) Received: by mail-ig0-f180.google.com with SMTP id b16so16657306igk.1 for ; Wed, 21 Jan 2015 11:16:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=Mtl+rbJGz+gPEnpcEeNqn3M+lm38pa+IpBbyIV7QIrw=; b=bNtuG3G9Qtg4GwPWzRUrVskJRSIH8W7RXJaI1JzRdbuS849YxtUXzji7Im7GOSrjfE ESK/oiurwrQDLVapYuiYQO+fy1YbjJslq2OiVlg3iw28mtolZYEws1dab/rCXLIZ5WRM TY1yCqBtRtsbXD5XXrT2vAGD//U1QvonmPuVurhwj7JqjKNhsR2b60kPkreaia58peGW pZnPjIUbmUo6YSTXr/Pgcr8Xtvm3Jn323/J5MFbW+qhYTuWHGREI88tXNerEhLj4QFci r9EXXoI/EQsBxtgOCVJX8wfkpQM1+87MJSuHfGtNEGTqT7ofA3wS/wT/RI1WzB2/D/ei 9YNA== MIME-Version: 1.0 X-Received: by 10.42.54.5 with SMTP id p5mr42588428icg.37.1421867788062; Wed, 21 Jan 2015 11:16:28 -0800 (PST) Sender: adrian.chadd@gmail.com Received: by 10.36.78.14 with HTTP; Wed, 21 Jan 2015 11:16:28 -0800 (PST) In-Reply-To: References: Date: Wed, 21 Jan 2015 11:16:28 -0800 X-Google-Sender-Auth: m05At-RdrTbP1TD-FM76e8SkN8U Message-ID: Subject: Re: RBPi Doesn't Boot With GPS GPIO Board Attached From: Adrian Chadd To: Reza Nikoopour Content-Type: text/plain; charset=UTF-8 Cc: "freebsd-embedded@freebsd.org" X-BeenThere: freebsd-embedded@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Dedicated and Embedded Systems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Jan 2015 19:16:29 -0000 Hi, Does the GPS add-on speak to the raspberry PI serial console? If so, it's likely outputting a whole lot of GPS data via serial, and the boot loaders for both operating systems are interpreting that as valid input. -a On 21 January 2015 at 09:57, Reza Nikoopour wrote: > 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 > _______________________________________________ > freebsd-embedded@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-embedded > To unsubscribe, send any mail to "freebsd-embedded-unsubscribe@freebsd.org"