From neversetsun@ustc.edu Tue Feb 26 14:48:23 2008 Received: from smtp.ustc.edu.cn ([202.38.64.16] helo=ustc.edu.cn) by stoneboat.aleph1.co.uk with smtp (Exim 4.63) (envelope-from ) id 1JU16D-0001gd-6H for yaffs@lists.aleph1.co.uk; Tue, 26 Feb 2008 14:48:23 +0000 Received: (eyou send program); Tue, 26 Feb 2008 22:48:11 +0800 Message-ID: <404037291.30427@ustc.edu.cn> X-EYOUMAIL-SMTPAUTH: shizheng@mail.ustc.edu.cn Received: from unknown (HELO [127.0.0.1]) (202.38.79.82) by 202.38.64.8 with SMTP; Tue, 26 Feb 2008 22:48:11 +0800 Message-ID: <47C4265B.9010507@ustc.edu> Date: Tue, 26 Feb 2008 22:46:51 +0800 From: "shizheng@Alumni" User-Agent: Thunderbird 2.0.0.9 (Windows/20071031) MIME-Version: 1.0 To: rohit h References: <90d987c0802252354y20b4ce7es43e6b686f175f504@mail.gmail.com> In-Reply-To: <90d987c0802252354y20b4ce7es43e6b686f175f504@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 202.38.64.16 X-SA-Exim-Mail-From: neversetsun@ustc.edu X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on stoneboat.aleph1.co.uk X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00, MSGID_FROM_MTA_HEADER,SPF_HELO_PASS autolearn=no version=3.2.3 X-SA-Exim-Version: 4.2.1 (built Tue, 09 Jan 2007 17:23:22 +0000) X-SA-Exim-Scanned: Yes (on stoneboat.aleph1.co.uk) Cc: yaffs@lists.aleph1.co.uk Subject: Re: [Yaffs] Does Yaffs support sequential programming of NAND flash? X-BeenThere: yaffs@lists.aleph1.co.uk X-Mailman-Version: 2.1.9 Precedence: list List-Id: Discussion of YAFFS NAND flash filesystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Feb 2008 14:48:23 -0000 Thanks a lot. I have another question to ask. Do all kinds of 2kB-page NAND flash obey to the sequential page writing order rule? rohit h wrote: >> It has a program limitation that the program addressing should >> be done in sequential order in a block, i.e. random page address >> programming is prohibited. >> >> We are new to Yaffs, so I wanna know if yaffs support such kind of >> NAND device. >> > > Yaffs2 only programs sequentially in a block, starting from page 0 > and ending at the last page. > > Quote from http://www.yaffs.net/node/38: > "The original motivation for YAFFS 2 was to add support for the new > NAND with 2kB pages instead of 512-byte pages and strictly sequential > page writing order." >