Echelon LonTal Stack - Manual (Page 99)

LonTalk Stack Developer’s Guide 87
The average amount of memory to reserve for dynamic network variable
self-documentation strings is used, along with the number of dynamic network
variables, to calculate the maximum amount of non-volatile data that might be
required for the LonTalk Stack device. The actual size of a particular dynamic
variable’s self-documentation string can exceed the specified average, as long as
the actual average size is less than or equal to the specified average size.
The default size for the dynamic network variable self-documentation data is 16
bytes, but you can specify up to 128 bytes.
Click Next.
Configuring Support for Non-Volatile Data
From the Non-Volatile Data Support page of the utility, you can specify the
following parameters for the application:
• Non-volatile data driver model
• Non-volatile data flush guard timeout value
• Name for the top-level root segment for the non-volatile data
The non-volatile data driver model can be one of the following types, depending
on your application’s requirements:
• Flash file system (such as Linux)
• Flash direct memory (with no file system) if you do not have, or do not
want to use, a flash file system for your non-volatile data
• User defined if you have another non-volatile data support model that
your application uses
You can only select one driver model for the specified application.