From owner-freebsd-questions@FreeBSD.ORG Fri Aug 19 13:44:19 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 893B116A41F for ; Fri, 19 Aug 2005 13:44:19 +0000 (GMT) (envelope-from freebsd-questions-local@be-well.ilk.org) Received: from mail27.sea5.speakeasy.net (mail27.sea5.speakeasy.net [69.17.117.29]) by mx1.FreeBSD.org (Postfix) with ESMTP id E69B643D46 for ; Fri, 19 Aug 2005 13:44:18 +0000 (GMT) (envelope-from freebsd-questions-local@be-well.ilk.org) Received: (qmail 24260 invoked from network); 19 Aug 2005 13:44:15 -0000 Received: from dsl092-078-145.bos1.dsl.speakeasy.net (HELO be-well.ilk.org) ([66.92.78.145]) (envelope-sender ) by mail27.sea5.speakeasy.net (qmail-ldap-1.03) with SMTP for ; 19 Aug 2005 13:44:15 -0000 Received: by be-well.ilk.org (Postfix, from userid 1147) id 520E447; Fri, 19 Aug 2005 09:44:14 -0400 (EDT) Sender: lowell@be-well.ilk.org To: Bsderss References: <20050818113340.50335.qmail@web54404.mail.yahoo.com> From: Lowell Gilbert Date: 19 Aug 2005 09:44:14 -0400 In-Reply-To: <20050818113340.50335.qmail@web54404.mail.yahoo.com> Message-ID: <44zmreghxt.fsf@be-well.ilk.org> Lines: 30 User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: freebsd-questions@freebsd.org Subject: Re: Free version of RTCoreBSD X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: freebsd-questions@freebsd.org List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Aug 2005 13:44:19 -0000 Bsderss writes: > As I look into RTCoreBSD, I found that it may be not > free. If it can be download, can anyone please tell me > where can I download it? How much does it charge per > copy? It is indeed a commercial product. Check with FSMLabs for information on it. Note that in RTCoreBSD, all of FreeBSD runs as a client task of their proprietary real-time kernel > Is there a freebsd of RTOS based on FreeBSD or > uses the TCP/IP stack as in NetBSD or FreeBSD? I know > QNX does use the TCP/IP stack from NetBSD/FreeBSD, but > QNX is not free either. Many commercial RTOS use BSD networking code. Like other UNIX-ish systems, BSD is not suitable for hard-real-time applications. On the other hand, it works quite well for embedded applications focused on efficiency rather than controlling latency. Not knowing your requirements, there's little more guidance we can give you. However, there is quite a bit of material you may find useful. Have you looked at the FreeBSD Documentation article on "FreeBSD and Solid State Devices"? Good luck. -- Lowell Gilbert, embedded/networking software engineer, Boston area http://be-well.ilk.org/~lowell/