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eCos Net Distribution
RedBoot Product
RedBoot Net Distribution
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RedBoot Commands
It's possible to add platform specific RedBoot commands using the
macro RedBoot_cmd defined in <redboot.h>. This is an example
from the Assabet platform HAL:
RedBoot_cmd("exec",
"Execute an image - with MMU off",
"[-w timeout] []",
do_exec
);
static void
do_exec(int argc, char *argv[])
{
...
}
This adds the command 'exec', the associated help strings and a
pointer to the actual command implementation.
RedBoot provides two commands, init_opts() and scan_opts(), which
are used to parse the options passed to the command.
- init_opts()
- This is used to fill in the option structures - these are only
required if there are more than one option though.
Each option is defined by the character used to identify it, a
type, a flag identifying whether it takes an argument, a pointer to
the variable which will hold the parsed value, and a pointer to a
boolean flag which gets set if the option was used on a parsed
command line.
- scan_opts()
- This is used to do the actual parsing. It will use information
prepared by init_opts() to parse the command line, filling out
variables associated with options if these appear on the command
line.
This call also allows for handling of a default argument, which is
what remains on the command line after all options are parsed.
Look in the source files for usage examples of the two
functions.
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