System information

Reference Guide Crestron 2-Series Control System
24 • 2-Series Control Systems Reference Guide – DOC. 6256A
The 4MB flash memory consists of approximately 1.5MB used for firmware (.cuz
file), and approximately 2.5MB available for the SIMPL program and SIMPL+
modules. The files that reside in flash conform to a flat directory structure. The
following table presents the structure of the overall file system.
The directory structure of the 2-series control system can be broken down into two
parts. The first part resides on the on-board flash memory (and discretionary
NVRAM memory when the NVRAMDISK option is enabled) and the second resides
on the optional external compact flash/microdrive card. Programs, data files, and
data can be stored in the on-board flash or on the compact flash card (if installed).
This section briefly describes the structure of the file system.
The files that reside in the internal flash/NVRAM conform to a flat directory
structure while the compact flash system contains a fully FAT32 compatible file
system to allow the same compact flash card to be used in a Windows environment.
The table, shown after this paragraph, presents the structure of the overall file
system.
Control System Directory Structure
TOP LEVEL SECONDARY LEVEL DESCRIPTION
\ Root of the file system
DISPLAY
Legacy directory used in Crestron Isys
®
panels
to hold display lists
SYS Contains various system configuration files
SETUP Directory for NAT configuration Web pages
HTML Web pages
SIMPL Control system program files
SPLUS SIMPL+ module files
USER Used for user-defined files
MAILBOX Directory contains the user mailbox file
CF0
The mounting point for the compact flash files;
the 0 (or zero) refers to the on-board compact
flash slot
NVRAM NVRAM disk is enabled
Although the file system names are case insensitive, the case is preserved to maintain
file checksums. The compact flash directory only appears when a compact flash card
is inserted into the system. The NVRAM directory only appears if an NVRAM disk
has been created. To reference files on the compact flash, prefix the “\CF0\” to any
fully qualified path from the Windows environment. For example, if the file in
Windows is “\MyDirectory\MySubdirectory\MyFile.ext”, the complete 2-Series path
for a file on the first compact flash slot (onboard) is:
“\CF0\MyDirectory\MySubdirectory\MyFile.ext”
When the SIMPL Windows program is stored on the compact flash, the files reside
in the directories \CF0\SIMPL and \CF0\SPLUS. When web pages are stored on the
compact flash, the directory is \CF0\HTML. Storing the program or web pages on
the compact flash gives those files precedence over files stored on internal flash.
That is to say, if you have different programs stored in both internal flash and
compact flash, the program on compact flash runs at boot-up.
Non-volatile (NVRAM)
1. SIMPL+ Variables (Default if no options are specified, or using
"nonvolatile" qualifier or #DEFAULT_NONVOLATILE)