table of contents
srec_cmp(1) | General Commands Manual | srec_cmp(1) |
NAME¶
srec_cmp - compare two EPROM load files for equality
SYNOPSIS¶
srec_cmp [ option... ] filename...
srec_cmp -Help
srec_cmp -VERSion
DESCRIPTION¶
The srec_cmp program is used to compare two EPROM load files for equality. This comparison is performed irrespective of the load order of the data in each of the files.
INPUT FILE SPECIFICATIONS¶
Input may be qualified in two ways: you may specify a data file or a data generator. format and you may specify filters to apply to them. An input file specification looks like this:
data‐generator [ filter ... ]
Data Files¶
Input from data files is specified by file name and format name. An input file specification looks like this:
Data Generators¶
It is also possible to generate data, rather than read it from a file. You may use a generator anywhere you could use a file. An input generator specification looks like this:
Common Manual Page¶
See srec_input(1) for complete details of input specifiers. This description is in a separate manual page because it is common to more than one SRecord command.
OPTIONS¶
The following options are understood:
- @filename
- The named text file is read for additional command line arguments. Arguments are separated by white space (space, tab, newline, etc). There is no wildcard mechanism. There is no quoting mechanism. Comments, which start with '#' and extend to the end of the line, are ignored. Blank lines are ignored.
- -Help
-
Provide some help with using the srec_cmp program. - -IGnore_Checksums
- The -IGnore‐Checksums option may be used to disable checksum validation of input files, for those formats which have checksums at all. Note that the checksum values are still read in and parsed (so it is still an error if they are missing) but their values are not checked. Used after an input file name, the option affects that file alone; used anywhere else on the command line, it applies to all following files.
- -Enable_Sequence_Warnings
Note: the output of srec_cat(1) is always in this order.
Note: This option must be used before the input file. This is because if there are several files on the command line, each may need different settings. The setting remains in force until the next -Disable_Sequence_Warnings option.
Note: This option must be used before the offending input file. This is because if there are several files on the command line, each may need different settings. The setting remains in force until the next -Ensable_Sequence_Warnings option.
- ignore
- No warning or error is issued whena redundant settings are detected.
- warning
- A warning is issued when a redundant settings are observed, the warning includes the problematic address.
- error
- A fatal error is issued when a redundant settings are observed, the fatal error message includes the problematic address and byte value.
- ignore
- No warning or error is issued when contradictory setting is detected.
- warning
- A warning is issued when a vontradictory settings are observed, the warning includes the problematic address, and values.
- error
- A fatal error is issued when contradictory settings are observed, the fatal error message includes the problematic address and byte values.
- -VERSion
-
Print the version of the srec_cmp program being executed. - -Verbose
-
This option may be used to obtain more information about how and where the two files differ. Please note that this takes longer, and the output can be voluminous.
All other options will produce a diagnostic error.
All options may be abbreviated; the abbreviation is documented as the upper case letters, all lower case letters and underscores (_) are optional. You must use consecutive sequences of optional letters.
All options are case insensitive, you may type them in upper case or lower case or a combination of both, case is not important.
For example: the arguments “-help”, “-HEL” and “-h” are all interpreted to mean the -Help option. The argument “-hlp” will not be understood, because consecutive optional characters were not supplied.
Options and other command line arguments may be mixed arbitrarily
on the command line.
The GNU long option names are understood. Since all option names
for srec_cmp are long, this means ignoring the extra leading
“-”. The
“--option=value” convention is
also understood.
EXIT STATUS¶
The srec_cmp command will exit with a status of 1 on any error. The srec_cmp command will only exit with a status of 0 if there are no errors.
EXAMPLE¶
A common use for the srec_cmp command is to verify that a particular signature is present in the code. In this example, the signature is in a file called “signature[rq], and the EPROM image is in a file called “image[rq]. We assume they are both Motorola S‐Record format, although this will work for all formats:
The signature need not be at the start of memory, nor need it be one single contiguous piece of memory. In the above example, the portions of the image which have the same address range as the signature are compared with the signature.
COPYRIGHT¶
srec_cmp version 1.65
Copyright (C) 1998... Peter Miller
The srec_cmp program comes with ABSOLUTELY NO WARRANTY; for
details use the 'srec_cmp -VERSion License' command. This is free
software and you are welcome to redistribute it under certain conditions;
for details use the 'srec_cmp -VERSion License' command.
MAINTAINER¶
Scott Finneran | E‐Mail: | scottfinneran@yahoo.com.au |
Peter Miller | E‐Mail: | pmiller@opensource.org.au |
SRecord | Reference Manual |