User guide

190 DC 900-1333P
Freeway User Guide
4.8 Run VxWorks Shell
To access the VxWorks shell as shown in Figure 4–55, enter ‘6’ at the Freeway Interac-
tive Menu. The VxWorks shell allows you to interactively invoke any subroutine that
has been loaded into Freeway’s memory, including those supplied by the VxWorks
operating system, those supplied by Protogate, and those defined in any of your own
application modules that have been loaded using the
sra_module parameter in the boot
configuration file (Section 3.2 on page 100) or via the shell. Upon the first invocation of
the shell, the symbol table for the Freeway server (
fwyyy.sym
1
) is loaded from the System
Boot Directory to resolve all function references called from the shell, unless it has
already been loaded to resolve references in modules loaded with the
sra_module param-
eter. Because use of the VxWorks shell requires at least a working knowledge of the
VxWorks operating system and provides a powerful interface that could cause the Free-
way to crash if used improperly, it is recommended that the
vxworks_shell parameter in
the boot configuration file be set to
FALSE after development of your customized appli-
cation modules is complete to prevent access to the VxWorks shell. To exit the shell, type
“exit” at the shell prompt and hit return twice.
Note
This option is only displayed if the vxworks_shell parameter is set
to
TRUE in your boot configuration file when Freeway is booted.
See Section 3.2 on page 100.
1. yyy = 486 for Freeway 1100/1150/1200/1300, 162 for a Freeway 2000/4000/8800 with an MVME 162
CPU, or
2604 for a Freeway 2000/4000/8800 with an MVME 2600 CPU.