Specifying code generator preferences, Compiling and generating the files, Using the lontalk interface developer files – Echelon FTXL User Manual
Page 73
FTXL User’s Guide
61
The LonTalk Interface Developer project directory is automatically included in
the compiler search path, and does not need to be specified explicitly. Similarly,
the Neuron C Compiler system directories (for header files specified with angled
brackets, for example, #include <string.h>) are also automatically included in the
compiler search path.
Specifying Code Generator Preferences
From the Interface Developer Code Generator Preferences page of the utility, you
can specify preferences for the LonTalk Interface Developer compiler, such as
whether to generate verbose source-code comments.
Compiling and Generating the Files
From the Summary and Confirmation page of the utility, you can view all of the
information that you specified for the project. When you click Next, the LonTalk
Interface Developer utility compiles the model file and generates a number of C
source files and header files, as described in
on page 61.
The Build Progress and Summary page shows the results of compilation and
generation of the FTXL project files.
Any warning or error messages have the following format:
Error-type: Model_file_name Line_number(Column_number): Message
Example: A model file named “tester.nc” includes the following single network
variable declaration:
network input SNVT_volt nviVolt
Note the missing semi-colon at the end of the line. When you use this file to build
a project from the LonTalk Interface Developer utility, the compiler issues the
following message:
Error: TESTER.NC 1( 32):
Unexpected END-OF-FILE in source file [NCC#21]
The message type is error, the line number is 1, the column number is 32 (which
corresponds to the position of the error, in this case, the missing semi-colon), and
the compiler message number is NCC#21. To fix this error, add a semi-colon to
the end of the line.
See the
NodeBuilder Errors Guide
for information about the compiler messages.
Using the LonTalk Interface Developer Files
The LonTalk Interface Developer utility takes all of the information that you
provide and automatically generates the following files that are needed for your
FTXL application:
• LonNvTypes.h
• LonCpTypes.h
• FtxlDev.h
• FtxlDev.c