nandflash k9f1208u0a- k9f1208u0b的读取操作 - guojian2011的个人空间 - eda中国门户网站 edacn - powered by x-space.htm

NandFlash K9F1208U0A- K9F1208U0B的读取操作(包括文档分析和源代码)

lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">528Bytes</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">按功能分为两大部分，分别是</SPAN><SPAN 
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style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">Data 
Field</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">和</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">Spare 
Field</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">，其中</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">Spare 
Field</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">占</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">528Bytes</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">里的</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">16Bytes,</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">这</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">16Bytes</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">是用于在读写操作的时候存放校验码用的，一般不用做普通数据的存储区，除去这</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">16Bytes,</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">剩下的</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">512Bytes</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">便是我们用于存放数据用的</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">Data 
Field</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">，所以一个</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">Page</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">上虽然有</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">528</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">个</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">Bytes</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">，但我们只按</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">512Bytes</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">进行容量的计算。</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><BR><SPAN 
style="DISPLAY: none">F]#~6T
~%^[W(M&amp;n%T0</SPAN></SPAN><SPAN lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">Data 
Field</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">按位置关系又可分为两个部分，分别称为</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">1st 
half</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">与</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">2nd 
half</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">，每个</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">half</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">各占</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">256</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">个</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">bytes</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">。或许你会感到纳闷，为什么要把</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">DataField</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">分为两个部分？把他们看做一个整体进行操作不就好了吗？呵呵，凡事都有因果，这么分块自然有它的道理所在，但现在还不是告诉你答案的时候。我们还是先讨论一下它的操作吧。对</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">K<st1:chmetcnv 
w:st="on" UnitName="F" SourceValue="9" HasSpace="False" Negative="False" 
NumberType="1" TCSC="0">9F</st1:chmetcnv>1208U0B</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">的操作是通过向</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">Nand 
Flash</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">命令寄存器（对于</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">s<st1:chmetcnv 
w:st="on" UnitName="C" SourceValue="3" HasSpace="False" Negative="False" 
NumberType="1" TCSC="0">3c</st1:chmetcnv>2410</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">来说此寄存器为</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">NFCMD</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">，内存映射地址为</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">0x4e000004</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">）发送命令队列进行的，为什么说是命令队列？就是因为要完成某个操作的时候发送的不是一条命令，而是连续几条命令或是一条命令加几个参数</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><BR><SPAN 
style="DISPLAY: none">Fu9Q{~MJ$Y6P0</SPAN></SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">下面是</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">K<st1:chmetcnv 
w:st="on" UnitName="F" SourceValue="9" HasSpace="False" Negative="False" 
NumberType="1" TCSC="0">9F</st1:chmetcnv>1208U0B</SPAN><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">的操作命令集</SPAN></SPAN></v:shapetype></SPAN></SPAN></P>
<P><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><v:shapetype 
stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" 
o:spt="75" coordsize="21600,21600"><SPAN lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><SPAN 
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><A 
href="http://www.edacn.net/batch.download.php?aid=1306" target=_blank><IMG