Configure and Environment Commands
A-2
Installation Guide
A
Modification is permitted by using the
M
option of the command. At the end
of the modification session, you are prompted for the update to Non-Volatile
RAM (NVRAM). A
Y
response must be made for the update to occur; any other
response terminates the update (disregards all changes). The update also
recalculates the checksum.
Take caution when modifying parameters. Some of these parameters are set
up by the factory, and correct board operation relies upon these parameters.
Once modification/update is complete, you can now display the current
contents as described earlier.
Set Environment to Bug/Operating System
ENV
[
;
[
D
]]
The
ENV
command allows the user to interactively view/configure all Bug
operational parameters that are kept in Battery Backup RAM (BBRAM), also
known as Non-Volatile RAM (NVRAM). The operational parameters are
saved in NVRAM and used whenever power is lost.
Any time the Bug uses a parameter from NVRAM, the NVRAM contents are
first tested by checksum to ensure the integrity of the NVRAM contents. In the
instance of BBRAM checksum failure, certain default values are assumed as
stated below.
The bug operational parameters (which are kept in NVRAM) are not
initialized automatically on power-up/warm reset. It is up to the Bug user to
invoke the
ENV
command. Once the
ENV
command is invoked and executed
without error, Bug default and/or user parameters are loaded into NVRAM
along with checksum data. If any of the operational parameters have been
modified, these new parameters will not be in effect until a reset/power-up
condition.
If the
ENV
command is invoked with no options on the command line, the user
is prompted to configure all operational parameters. If the
ENV
command is
invoked with the option
D
, ROM defaults will be loaded into NVRAM.
The parameters to be configured are listed in the following table.
Solution Systems Technologies Inc.
720-565-5995 | [email protected] | www.solusys.com
Solution Systems Technologies Inc.
720-565-5995 | [email protected] | www.solusys.com