--- /dev/null
+<!-- Copyright (C) 2003 Red Hat, Inc. -->
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+<HTML
+><HEAD
+><TITLE
+>cksum</TITLE
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+>eCos Reference Manual</TH
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+>Next</A
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+><HR
+ALIGN="LEFT"
+WIDTH="100%"></DIV
+><H1
+><A
+NAME="CKSUM-COMMAND">cksum</H1
+><DIV
+CLASS="REFNAMEDIV"
+><A
+NAME="AEN3155"
+></A
+><H2
+>Name</H2
+>cksum -- Compute POSIX checksums</DIV
+><DIV
+CLASS="REFSYNOPSISDIV"
+><A
+NAME="AEN3158"><H2
+>Synopsis</H2
+><P
+><B
+CLASS="COMMAND"
+>cksum</B
+> {-b <TT
+CLASS="REPLACEABLE"
+><I
+>location</I
+></TT
+>} {-l <TT
+CLASS="REPLACEABLE"
+><I
+>length</I
+></TT
+>}</P
+></DIV
+><DIV
+CLASS="REFSECT1"
+><A
+NAME="AEN3165"
+></A
+><H2
+>Arguments</H2
+><DIV
+CLASS="INFORMALTABLE"
+><A
+NAME="AEN3167"><P
+></P
+><TABLE
+BORDER="1"
+CLASS="CALSTABLE"
+><THEAD
+><TR
+><TH
+WIDTH="25%"
+ALIGN="LEFT"
+VALIGN="TOP"
+>Name</TH
+><TH
+WIDTH="25%"
+ALIGN="LEFT"
+VALIGN="TOP"
+>Type</TH
+><TH
+WIDTH="25%"
+ALIGN="LEFT"
+VALIGN="TOP"
+>Description</TH
+><TH
+WIDTH="25%"
+ALIGN="LEFT"
+VALIGN="TOP"
+>Default</TH
+></TR
+></THEAD
+><TBODY
+><TR
+><TD
+WIDTH="25%"
+ALIGN="LEFT"
+VALIGN="TOP"
+>-b <TT
+CLASS="REPLACEABLE"
+><I
+>location</I
+></TT
+></TD
+><TD
+WIDTH="25%"
+ALIGN="LEFT"
+VALIGN="TOP"
+>Memory address</TD
+><TD
+WIDTH="25%"
+ALIGN="LEFT"
+VALIGN="TOP"
+>Location in memory for stat of data.</TD
+><TD
+WIDTH="25%"
+ALIGN="LEFT"
+VALIGN="TOP"
+><SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>none</I
+></SPAN
+></TD
+></TR
+><TR
+><TD
+WIDTH="25%"
+ALIGN="LEFT"
+VALIGN="TOP"
+>-l <TT
+CLASS="REPLACEABLE"
+><I
+>length</I
+></TT
+></TD
+><TD
+WIDTH="25%"
+ALIGN="LEFT"
+VALIGN="TOP"
+>Number</TD
+><TD
+WIDTH="25%"
+ALIGN="LEFT"
+VALIGN="TOP"
+>Length of data</TD
+><TD
+WIDTH="25%"
+ALIGN="LEFT"
+VALIGN="TOP"
+><SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>none</I
+></SPAN
+></TD
+></TR
+></TBODY
+></TABLE
+><P
+></P
+></DIV
+></DIV
+><DIV
+CLASS="REFSECT1"
+><A
+NAME="AEN3194"
+></A
+><H2
+>Description</H2
+><P
+>Computes the POSIX checksum on a range of memory (either RAM or FLASH).
+The values printed (decimal cksum, decimal length, hexadecimal cksum,
+ hexadecimal length) can be compared with the output from the Linux program 'cksum'.</P
+></DIV
+><DIV
+CLASS="REFSECT1"
+><A
+NAME="AEN3197"
+></A
+><H2
+>Examples</H2
+><P
+>Checksum a buffer.
+<TABLE
+BORDER="5"
+BGCOLOR="#E0E0F0"
+WIDTH="70%"
+><TR
+><TD
+><PRE
+CLASS="SCREEN"
+>
+RedBoot> <TT
+CLASS="USERINPUT"
+><B
+>cksum -b 0x100000 -l 0x100</B
+></TT
+>
+POSIX cksum = 3286483632 256 (0xc3e3c2b0 0x00000100)</PRE
+></TD
+></TR
+></TABLE
+>
+ </P
+><P
+>Checksum an area of memory after loading a file. Note that the base
+address and length parameters are provided by the preceding
+load command.
+<TABLE
+BORDER="5"
+BGCOLOR="#E0E0F0"
+WIDTH="70%"
+><TR
+><TD
+><PRE
+CLASS="SCREEN"
+>
+RedBoot> <TT
+CLASS="USERINPUT"
+><B
+>load -r -b %{FREEMEMLO} redboot.bin</B
+></TT
+>
+Raw file loaded 0x06012800-0x0602f0a8
+RedBoot> <TT
+CLASS="USERINPUT"
+><B
+>cksum</B
+></TT
+>
+Computing cksum for area 0x06012800-0x0602f0a8
+POSIX cksum = 2092197813 116904 (0x7cb467b5 0x0001c8a8)</PRE
+></TD
+></TR
+></TABLE
+>
+ </P
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+>Next</A
+></TD
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+><TR
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+WIDTH="33%"
+ALIGN="left"
+VALIGN="top"
+>channel</TD
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projects / karo-tx-redboot.git / blobdiff